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gloss-test.tex
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% tres meta
\dword{dword}{DUNE Word}{A term in the DUNE lexicon}
%%%%%% START ADDING WORDS, IN ALPHABETICAL ORDER IF POSSIBLE! %%%%%%%%
\dword{nasa}{NASA}{U.S. National Aereonautics and Space Administration}
%near detector
\dword{nd}{ND}{near detector}{Refers to the detector(s) %or more generally the experimental site
installed close to the neutrino source at \dword{fnal} }
%far detector
\dword{fd}{FD}{far detector}{The \SI{70}{kt} total (\fdfiducialmass fiducial) mass \dword{lartpc} DUNE detector, composed of four \larmass total (\nominalmodsize fiducial) mass modules, %or more generally the experimental
to be installed at the far site at \dword{surf} in
Lead, SD, USA}
%single-phase
\dword{sp}{SP}{single-phase}{Distinguishes one of the DUNE far detector technologies by the fact that it operates using argon in its liquid phase only}
%Distinguishes one of the four \SI{10}{\kton} \dwords{detmodule} of the DUNE far detector by the fact that it operates using argon in just its liquid phase}
%dual-phase
\dword{dp}{DP}{dual-phase}{Distinguishes one of the DUNE far detector technologies by the fact that it operates using argon %Distinguishes one of the four \SI{10}{\kton} \dwords{detmodule} of the DUNE far detector by the fact that it operates using argon
in both gas and liquid phases}
%photon detection system
\dword{pds}{PD system}{photon detection system}{The detector
subsystem sensitive to light produced in the \dword{lar} }
%high voltage system
\dword{hvs}{HVS}{high voltage system}{The detector
subsystem that provides the \dword{tpc} drift field}
%time projection chamber
\dword{tpc}{TPC}{time projection chamber}{A type of particle detector that uses an \efield together with a sensitive volume of gas or liquid, e.g., \dword{lar}, to perform a \threed reconstruction of a particle trajectory or interaction. The activity is recorded by digitizing the waveforms of current
induced on the anode as the distribution of ionization charge passes by
or is collected on the electrode (TPC is also used for ``total project cost'')}
%liquid argon time-projection chamber
\dword{lartpc}{LArTPC}{liquid argon time-projection chamber}{A \dword{tpc} filled with liquid argon; %A class of detector technology that this technology forms
the basis for the \dword{dune} \dword{fd} modules} %. It typically entails observation of ionization activity by electrical signals and of scintillation by optical signals}
%anode plane assembly
\dwords{apa}{APA}{anode plane assembly}{anode plane assemblies}{A unit of the \dword{sp}
detector module containing the elements sensitive to ionization in the \dword{lar}.
It contains two faces each of three planes of wires, and interfaces to the cold
electronics and photon detection system}
\dword{awg}{AWG}{American wire gauge} {U.S. standard set of non-ferrous wire conductor sizes}
\dword{ufer}{Ufer}{concrete encased electrode} {U.S. National Electrical Code grounding method refered to as Concrete Encased Electrode}
%charge readout
\dword{cro}{CRO}{charge readout}{The system for detecting
ionization charge distributions in a \dword{dp} detector module}
%light readout
\dword{lro}{LRO}{light readout}{The system for detecting
scintillation photons in a \dword{dp} detector module}
%safe high voltage
\dword{shv}{SHV}{safe high voltage}{Type of bayonet mount
connector used on coaxial cables that has additional insulation
compared to standard BNC and MHV connectors that makes it safer
for handling \dword{hv} by preventing accidental contact with the
live wire connector in an unmated connector or plug}
%front-end
\dword{fe}{FE}{front-end}{The front-end refers a point that is
``upstream'' of the data flow for a particular subsystem.
For example the \dword{sp} front-end electronics is where the cold electronics
meet the sense wires of the TPC and the front-end \dword{daq} is where the
\dword{daq} meets the output of the electronics}
\dword{daqrou}{DAQ RU}{DAQ readout unit}{The first element in the data flow of the \dword{daq}}
\dword{cots}{COTS}{commercial off-the-shelf}{Items, typically hardware such as
computers, that may be purchased whole, without any custom design or fabrication and
thus at normal consumer prices and availability}
\dword{i2c}{I2C}{Inter-Integrated Circuit}{I$^2$C or I2C is a synchronous,
multi-master, multi-slave, packet switched, single-ended, serial computer bus widely used
for attaching lower-speed peripheral ICs to processors and microcontrollers in short-distance,
intra-board communication} %leave upper case
\dword{spi}{SPI}{Serial Peripheral Interface}{The Serial Peripheral Interface is a
synchronous serial communication interface specification used for short distance
communication, primarily in embedded systems}%leave upper case
\dword{miso}{MISO}{master in slave out}{The Master In Slave Out is a logic
signal on the \dword{spi} bus on which the data from the slave are transmitted once
a request from the master is received} %leave upper case
\dword{mosi}{MOSI}{master out slave in}{The Master Out Slave In is a logic
signal on the \dword{spi} bus on which the data from the master is transmitted} %leave upper case
\dword{uart}{UART}{Universal Asynchrous Receiver/Transmitter}{A universal
asynchronous receiver-transmitter is a computer hardware device for asynchronous
serial communication in which the data format and transmission speeds are configurable}%leave upper case
\dword{cr}{CR}{Capacitance-Resistance} %leave upper case
\dword{dc}{DC}{direct coupling} % I think these are ok lower case (anne)
\dword{ac}{AC}{Alternating Current; when used in the phrase ``AC coupling'' refers to a circuit element that filters out low-frequency components, such as constant offsets, leaving higher frequency signal components. The frequency filtering is determined both by a resistor and a capacitor}
\dword{pll}{PLL}{Phase-Locked Loop}{A control system that generates an
output signal whose phase is related to the phase of an input signal} %leave upper case
\dword{fifo}{FIFO}{First-In-First-Out} % leave in upper case
\dword{tsmc}{TSMC}{Taiwan Semiconductor Manufacturing Company}
\dword{saci}{SACI}{ \dword{slac} \dword{asic} Control Interface}
\dword{om3}{OM3}{Type of multi-mode fiber optic cable, typically capable of \SI{10}{Gbps} data transmission at lengths up to \SI{300}{m}}
\dword{om4}{OM4}{Type of multi-mode fiber optic cable, typically capable of \SI{10}{Gbps} data transmission at lengths up to \SI{550}{m}}
\dword{qfp}{QFP}{Quad Flat Package} % leave in upper case
\dword{ams}{AMS}{analog and mixed signal}{Verilog-AMS is a derivative of the Verilog hardware description language that includes analog and mixed-signal extensions (AMS) in order to define the behavior of analog and mixed-signal systems}
\dword{hepa}{HEPA}{High Efficiency Particulate Air}{The High Efficiency Particulate Air filters are a type of air filter that remove 99.97\% of particles that have a size greater than or equal to \SI{0.3}{$\mu$m}} % leave in upper case
\dword{uvm}{UVM}{universal verification methodology}{The Universal Verification Methodology is a standardized methodology for verifying integrated circuit designs} % leave in upper case
\dword{lhc}{LHC}{Large Hadron Collider}
\dword{lsb}{LSB}{least significant bit}{The bit with the lowest numerical value in a binary number}
\dword{ldo}{LDO}{low-dropout regulator}{A low-dropout or LDO regulator is a \dword{dc} linear voltage regulator that can regulate the output voltage even when the supply voltage is very close to the output voltage}
%analog digital converter
\dword{adc}{ADC}{analog-to-digital converter}{A sampling of a voltage
resulting in a discrete integer count corresponding in some way to
the input}
\dword{inl}{INL}{integral non-linearity}{A commonly used measure of performance in \dwords{adc}. It is the deviation between the ideal input threshold value and the measured threshold level of a certain output code}
\dword{dnl}{DNL}{differential non-linearity}{A commonly used measure of performance in \dwords{adc}. The DNL error is defined as the difference between an actual step width and the ideal value of one \dword{lsb}}
\dword{pnp}{PNP}{Type of bipolar junction transistor consistning of a
layer of N-doped semiconductor sandwiched between two layers of P-doped material}
\dword{spice}{SPICE}{SPICE
(``Simulation Program with Integrated Circuit Emphasis'') is a general-purpose,
open-source analog electronic circuit simulator. It is a program used in integrated
circuit and board-level design to check the integrity of circuit designs and to
predict circuit behavior}
%data acquisition
\dword{daq}{DAQ}{data acquisition}{The data acquisition system
accepts data from the detector \dword{fe} electronics, buffers
the data, performs a \dword{trigdecision}, builds events from the selected
data and delivers the result to the offline \dword{diskbuffer}}
% interval of validity
\dword{iov}{IOV}{interval of validity}{Interval over which something is valid}
%CALC
\dword{calci}{CALCI}{Calibration and Cryogenic Instrumentation}
%detector module
\dword{detmodule}{far detector module}{The entire DUNE far detector is
segmented into four modules, each with a nominal \SI{10}{\kton}
fiducial mass}
\dword{module}{module}{Many aspects of the DUNE far and near detectors are modular, so ``module'' must be understood in context. It may refer to one of the four far detector modules, distinct portions of a subdetector as in a ``field cage module,'' a software or electronics module, e.g., a separate framework plug-in, and so on}
%detector unit
\dword{detunit}{detector unit}{A portion of a \dword{detmodule} may be further partitioned into a number of similar parts. For example, the \dword{sp} \dword{tpc} is made up of \dword{apa} units (and other elements)}
%secondary DAQ buffer
\dword{diskbuffer}{secondary DAQ buffer}{A secondary
\dword{daq} buffer holds a small subset of the full rate as
selected by a \dword{trigcommand}.
This buffer also marks the interface with the DUNE Offline}
%online monitoring
\dword{om}{OM}{online monitoring}{Processes that run inside
the \dword{daq} on data ``in flight,'' specifically before landing on the
offline disk buffer, and that provide feedback on the operation of
the \dword{daq} itself and the general health of the data it is marshalling}
%data quality monitoring
\dword{dqm}{DQM}{data quality monitoring}{Analysis of the raw
data to monitor the integrity of the data and the performance of the
detectors and their electronics. This type of monitoring may be
performed in real time, within the \dword{daq} system, or in later
stages of processing, using disk files as input}
%DAQ dump buffer
\dword{dumpbuffer}{DAQ dump buffer}{This \dword{daq} buffer
accepts a high-rate data stream, in aggregate, from an associated
% \dword{submodule} (elim by anne)
portion of a \dword{detmodule} sufficient to collect all data likely relevant to
a potential \dword{snb}}
\dword{etf}{ETF}{Experiment Test Framework}{ \dword{wlcg} testing middleware running grid jobs that actively test distributed sites services and capabilities, and report back to monitoring services}
%Global Trigger Logic
\dword{etl}{ETL}{external trigger logic}{Trigger processing
that consumes \dword{detmodule} level \dword{trignote} information
and other global sources of trigger input and emits
\dword{trigcommand} information back to the \dwords{mtl}}
\dword{daqeti}{ETI}{external trigger interface}{Interface between \dwords{mtl} and external source and sinks of relevant trigger information}
%trigger notification
\dword{trignote}{trigger notification}{Information provided by
\dword{mtl} to \dword{etl} about \dword{trigdecision} %its
processing}
%trigger primitive
\dword{trigprimitive}{trigger primitive}{Information derived by
the \dword{daq} \dword{fe} hardware that describes a region of space (e.g.,
one or several neighboring channels) and time (e.g., a contiguous set
of \dword{adc} sample ticks) associated with some activity}
%external trigger candidate
\dword{externtrigger}{external trigger candidate}{Information
provided to the \dword{mtl} about events external to a
\dword{detmodule} so that it may be considered in forming
\dwords{trigcommand}}
%Out-of-band trigger command dispatcher
\dword{daqoob}{OOB dispatcher}{out-of-band trigger command
dispatcher}{This component is responsible for dispatching a \dword{snb} dump
command to all \dwords{daqfer} in the \dword{detmodule}}
%module trigger logic
\dword{mtl}{MTL}{module trigger logic}{Trigger processing
that consumes \dword{detunit} level \dword{trigcommand} information
and emits \dwords{trigcommand}.
It provides the \dword{etl} with \dwords{trignote} and receives back any
\dwords{externtrigger}}
%octant
\dword{octant}{octant}{Any of the eight parts into which 4$\pi$
is divided by three mutually perpendicular axes.
In particular in referencing the value for the mixing angle
$\theta_{23}$}
%sub-detector ??? %%%%%%%%%%%%%%%%%%% CHeck if used (Anne) %%%%%% ???????
% \dword{submodule}{subdetector}{A detector unit of granularity less than one \dword{detmodule} such as the TPC of either a \dword{sp} or \dword{dp} module}
%trigger candidate
\dword{trigcandidate}{trigger candidate}{Summary information derived
from the full data stream and representing a contribution toward
forming a \dword{trigdecision}}
%trigger command
\dword{trigcommand}{trigger command}{Information derived from
one or more \dwords{trigcandidate} that directs elements of the
\dword{detmodule} to read out a portion of the data stream}
%trigger command message
\dword{tcm}{TCM}{trigger command message}{A message flowing
down the trigger hierarchy from global to local context. Also see \dword{tpm}}
\dword{mlt}{MLT}{module level trigger}{The \dword{daq} component responsible for producing a \dword{trigdecision} that will be used to command the readout of a detector module}
%trigger decision
\dword{trigdecision}{trigger decision}{The process by which
\dwords{trigcandidate} are converted into \dwords{trigcommand}}
%trigger primitive message
\dword{tpm}{TPM}{trigger primitive message}{A message flowing
up the trigger hierarchy from local to global context. Also see \dword{tcm}}
\dword{ipc}{IPC}{inter-process communication}{A system for software elements to exchange information between threads, local processes or across a data network. An IPC system is typically specified in terms of protocols composed of message types and their associated data schema}
\dword{daqdispre}{discovery and presence}{As used in the context of the \dword{ipc}, a system that provides mechanisms for a node on a communication network to learn of the existence of peers and their identity (discovery) as well as determine if they are currently operational or have become unresponsive (presence)}
\dword{pubsub}{PUB/SUB}{publish-subscribe communication pattern}{An \dword{ipc} communication pattern where one element, the publisher, sends data to all connected elements, the subscribers. Each subscriber may connect to multiple publishers. A variant is PUB/SUB with topics where a subscriber may register an identifier, the topic, to limit the information received to just an associated subset}
%event builder
\dword{eb}{EB}{event builder}{A software agent that executes \dwords{trigcommand} for one \dword{detmodule} by reading out the requested data}
%{A software agent servicing one \dword{detmodule} by executing \dwords{trigcommand} by reading out the requested data} (Anne: awkward wording)
\dword{daqdfo}{DFO}{data flow orchestrator}{The process by which trigger commands are executed in parallel and asynchronous manner by the back-end output subsystem of the \dword{daq}}
\dword{daqubi}{UBI}{upstream DAQ buffer interface}{The process which provides read-only access to data residing in the upstream \dword{daq} buffers to processes on the network}
%cluster on board
\dword{cob}{COB}{cluster on board}{An ATCA motherboard housing four RCEs}
%reconfigurable computing element
\dword{rce}{RCE}{reconfigurable computing element}{Data processor located outside of the cryostat on a \dword{cob} that contains \dword{fpga}, RAM and \dword{ssd} resources, responsible for buffering data, producing trigger primitives, responding to triggered requests for data and synching \dword{snb} dumps}
%bump on wire
\dword{bow}{BOW}{Bump On Wire}{A working name for the front-end readout computing elements used in the nominal \dword{daq} design to interface the \dword{dp} crates to the \dword{daq} front-end computers}
%advanced telecommunication computing architecture
\dword{atca}{ATCA}{Advanced Telecommunications Computing
Architecture}{An advanced computer architecture specification developed for the telecommunications, military, and aerospace industries that incorporates the latest trends in high-speed interconnect technologies, next-generation processors, and improved reliability, availability and serviceability}
%Micro Telecommunications Computing Architecture
\dword{utca}{$\mu$TCA}{Micro Telecommunications Computing Architecture}{The computer architecture specification followed by the crates that house charge and light readout electronics in the \dword{dpmod}}
%user datagram protocol
\dword{udp}{UDP}{user datagram protocol}{A simple,
connectionless Internet protocol that supports data integrity
checksums, requires no handshaking, and does not guarantee packet delivery}
%advanced meazzanine card
\dword{amc}{AMC}{advanced mezzanine card}{Holds digitizing
electronics and lives in \dword{utca} crates}
%radio frequency
\dword{rf}{RF}{radio frequency}{Electromagnetic emissions
that are within the (radio) frequency band of sensitivity of the detector
electronics}
%field programmable gate array
\dword{fpga}{FPGA}{field programmable gate array}{An
integrated circuit technology that allows the hardware to be reconfigured to
execute different algorithms after its manufacture and deployment}
\dword{fmc}{FMC}{FPGA mezzanine card}{Boards holding \dwords{fpga} and other integrated circuitry that attach to a motherboard}
%Front-End Link eXchange
\dword{felix}{FELIX}{Front-End Link eXchange}{A
high-throughput interface between \dword{fe} and trigger electronics
and the standard PCIe computer bus}
%DAQ partition
\dword{daqpart}{DAQ partition}{A cohesive and
coherent collection of \dword{daq} hardware and software working together to trigger and read out some portion of one detector module; it consists of an integral number of \dwords{daqfrag}.
Multiple \dword{daq} partitions may operate simultaneously, but each instance operates independently}
%front-end computer
\dword{fec}{DAQ FEC}{DAQ front-end computer}{The portion of one
\dword{daqpart} that hosts the \dword{daqdr}, \dword{daqbuf} and
\dword{daqds}. It hosts the \dword{daqfer} and corresponding portion of the \dword{daqbuf}}
%DAQ front-end fragment
\dword{daqfrag}{DAQ front-end fragment}{The portion of one
\dword{daqpart} relating to a single \dword{fec} and corresponding to an
integral number of \dwords{detunit}. See also \dword{datafrag}}
%data fragment
\dword{datafrag}{data fragment}{A block of data read out from a single \dword{daqfrag} that
span a contiguous period of time as requested by a \dword{trigcommand}}
%DAQ front-end redout
\dword{daqfer}{FER}{DAQ front-end readout}{The portion of a
\dword{daqfrag} that accepts data from the detector electronics and
provides it to the \dword{fec}}
%DAQ data receiver
\dword{daqdr}{DDR}{DAQ data receiver}{The portion of the
\dword{daqfrag} that accepts data from the \dword{daqfer}, emits
trigger candidates produced from the input trigger primitives, and
forwards the full data stream to the \dword{daqbuf}}
%primary DAQ buffer
\dword{daqbuf}{DAQ primary buffer}{The portion
of the \dword{daqfrag} that accepts full data stream from the
corresponding \dword{detunit} and retains it sufficiently long for it
to be available to produce a \dword{datafrag}}
%data selector
\dword{daqds}{data selector}{The portion of the \dword{daqfrag}
that accepts \dwords{trigcommand} and returns the corresponding
\dword{datafrag}. Not to be confused with \dword{daqdsn}}
\dword{daqdsn}{data selection}{The process of forming a trigger decision for selecting a subset of detector data for output by the \dword{daq} from the content of the detector data itself. Not to be confused with \dword{daqds}}
\dword{daqros}{DAQ RO}{DAQ readout subsystem}{The subsystem of the \dword{daq} for accepting and buffering data input from detector electronics}
\dword{daqdss}{DAQ DS}{DAQ data selection subsystem}{The subsystem of the \dword{daq} responsible for forming a trigger decision based on a portion of the input data stream. The majority subset of the \dword{daqtrs}}
\dword{daqtrs}{DAQ TS}{DAQ trigger subsystem}{The subsystem of the \dword{daq} responsible for forming a trigger decision}
\dword{daqbes}{DAQ BE}{DAQ back-end subsystem}{The portion of the \dword{daq} that is generally toward its output end. It is responsible for accepting and executing trigger commands and marshaling the data they address to output storage buffers}
\dword{daqtss}{DAQ TSS}{DAQ timing and synchronization subsystem}{The portion of the \dword{daq} that provides for timing and synchronization to various components}
%front-end mother board
\dword{femb}{FEMB}{front-end mother board}{Refers a unit of
the \dword{sp} \dword{ce} that contains the \dword{fe} amplifier
and \dword{adc} \dwords{asic} covering 128 channels}
%application-specific integrated circuit
\dword{asic}{ASIC}{application-specific integrated circuit}
%low voltage
\dword{lv}{LV}{low voltage}
%iceberg
\dword{iceberg}{ICEBERG}{ICEBERG R\&D cryostat and electronics}{Integrated Cryostat and Electronics Built for Experimental Research Goals: a new double-walled cryostat built and installed at \dword{fnal}
%build at \dword{fnal} and installed in the Proton Assembly Building meant (Anne changed)
for liquid argon detector R\&D and for testing of DUNE detector components}
%coldadc
\dword{coldadc}{ColdADC}{A newly developed 16-channels \dword{asic} providing analog to digital conversion}
%coldata
\dword{coldata}{COLDATA}{A 64-channel control and communications \dword{asic}}
% \dword{coldata}{COLDATA}{a 64-channel control and communications ASIC}{A key component of the 128-channel \dword{femb} that provides a control and communication interface between cold \dword{lvds} channels and warm electronics external to the cryostat}
%cryo
\dword{cryo}{CRYO}{Integrated ASIC including \dword{fe} circuitry providing signal amplification and pulse shaping, analog to digital conversion, and control and communication functionalities for 64 channels}
%liquid argon application-specific integrated circuit
\dword{larasic}{LArASIC}{A 16-channel \dword{fe} \dword{asic} that provides signal amplification and pulse shaping}
%complementary metal-oxide-semiconductor
\dword{cmos}{CMOS}{Complementary metal-oxide-semiconductor}
%equivalent noise charge
\dword{enc}{ENC}{equivalent noise charge}{The equivalent noise charge is the input charge that corresponds to a \dword{snr}$=1$}
%equivalent number of bits - not used
%dynamic range enhancement not used
%successive approximation register
\dword{sar}{SAR}{successive approximation register}
%protodune
\dword{protodune}{ProtoDUNE}{Either of the two DUNE prototype detectors constructed at \dword{cern}. % and operated in a CERN test beam (expected fall 2018).
One prototype implements \dword{sp} technology and the other \dword{dp}}
\dword{protodune2}{ProtoDUNE-2}{The second run of a \dword{protodune} detector}
%the single-phase ProtoDUNE detector
\dword{pdsp}{ProtoDUNE-SP}{The \dword{sp} \dword{protodune} detector at \dword{cern}}
%the dual-phase ProtoDune detector
\dword{pddp}{ProtoDUNE-DP}{The \dword{dp} \dword{protodune} detector at \dword{cern}}
%WA105 dual-phase demonstrator
\dword{wa105}{WA105 DP demonstrator}{The \SI[product-units=power]{3x1x1}{m} WA105 \dword{dp} prototype detector at \dword{cern}}
%data aquisition event block --- includes dirty word: "event"
\dword{rawevent}{DAQ event block}{The unit of data output by the
\dword{daq}.
It contains trigger and detector data spanning a unique, contiguous
time period and a subset of the detector channels}
%solid-state disk
\dword{ssd}{SSD}{solid-state disk}{Any storage device that
may provide sufficient write throughput to receive, both collectively and
distributed, the sustained full rate of data from a \dword{detmodule}
for many seconds}
\dword{nvme}{NVMe}{Non-volatile memory express}{A specification for an interface to storage media attached via PCIe}
%high-level trigger ---
\dword{hlt}{HLT}{high-level trigger}{This is actually a filter applied to data that has been triggered and aggregated in order to further reduce or characterize it}
%particle identification
\dword{pid}{PID}{particle ID}{Particle identification}
%readout window
\dword{readout window}{readout window}{A fixed, atomic and
continuous period of time over which data from a \dword{detmodule}, in
whole or in part, is recorded.
This period may differ based on the trigger that initiated the
readout}
%zero-suppression
\dword{zs}{ZS}{zero-suppression}{Used to delete some portion of a
data stream that does not significantly deviate from zero or
intrinsic noise levels.
It may be applied at different granularity from per-channel to per
\dword{detunit}}
%run control
\dword{rc}{RC}{run control}{The system for configuring,
starting and terminating the \dword{daq}}
\dword{r-c}{RC}{resistive-capacitive (circuit)}
\dword{daqccm}{CCM}{DAQ control, configuration and monitoring subsystem}{A system for controlling, configuring and monitoring other systems in particular those that make up the \dword{daq} where the CCM encompasses \dword{rc}}
\dword{daqrun}{DAQ run}{A period of time over which relevant data taking conditions and \dword{daq} configuration are asserted to be unchanged.
Multiple \dword{daq} runs may occur simultaneously when multiple \dwords{daqpart} are active.
This term should not be confused with DUNE experiment or beam ``runs'' that typically span many \dword{daq} runs}
\dword{daqrunnum}{DAQ run number}{A monotonically increasing count that uniquely and globally identifies a \dword{daqrun}}
%supernova neutrino burst
\dword{snb}{SNB}{supernova neutrino burst}{A prompt
increase in the flux of low-energy neutrinos emitted in the first few seconds of a core-collapse supernova. It can also refer to a trigger command type that may be due to this phenomenon,
or detector conditions that mimic its interaction signature}
%supernova burst and low energy
\dword{snble}{SNB/LE}{supernova neutrino burst and low
energy}{Supernova neutrino burst and low-energy physics program}
%supernova early warning system
\dword{snews}{SNEWS}{SuperNova Early Warning System}{A global
supernova neutrino burst trigger formed by a coincidence of \dword{snb}
triggers collected from participating experiments}
%one pulse per second signal
\dword{pps}{1PPS signal}{one-pulse-per-second signal}{An
electrical signal with a fast rise time and that arrives in real
time with a precise period of one second}
%spill location system
\dword{sls}{SLS}{spill location system}{A system residing at
the DUNE far detector site that provides information, possibly
predictive, indicating periods of time when neutrinos are being
produced by the \dword{fnal} Main Injector beam spills}
%warm interface board
\dword{wib}{WIB}{warm interface board}{Digital electronics
situated just outside the \dword{sp} cryostat that receives digital data
from the \dwords{femb} over cold copper connections and sends it to the \dword{rce}
\dword{fe} readout hardware}
\dword{gps}{GPS}{Global Positioning System}{A satellite-based system that provides a highly accurate \dword{pps} that may be used to synchronize clocks and determine location}
\dword{ntp}{NTP}{Network Time Protocol}{A networking protocol that allows synchronizing of clocks to within a few \si{\milli\second} of a time standard on a local network and within a few tens of \si{\milli\second} over the Internet}
\dword{ptproto}{PTP}{Precision Time Protocol}{A networking protocol that allows synchronizing of clocks to within a few \si{\micro\second} of a time standard on a local network}
\dword{irig}{IRIG}{inter-range instrumentation group}{A standards body that defined a time-code standard for transferring timing information}
%network interfce controller
\dword{nic}{NIC}{network interface controller}{Hardware for controlling the interface to a communication network. Typically, one that obeys the Ethernet protocol}
%warm interface electronics crate
\dword{wiec}{WIEC}{warm interface electronics crate}{Crates mounted on the signal flanges that contain the \dwords{wib}}
%power and timing cards
\dword{ptc}{PTC}{power and timing card}{Cards that provide further processing and distribution of the signals entering and exiting the \dword{sp} cryostat}
\dword{ptb}{PTB}{power and timing backplane}{Backplane used to connect the \dwords{wib} and the \dwords{ptc} on the \dword{wiec}. Also connects the \dword{ce} flange on the cryostat penetration}
%silicon photomultipler
\dword{sipm}{SiPM}{silicon photomultiplier}{A solid-state
avalanche photodiode sensitive to single \phel signals}
%cryogenic instrumentation and slow control
\dword{cisc}{CISC}{cryogenic instrumentation and slow controls}{Includes equipment to monitor all detector components and \dword{lar} quality and behavior, and provides a control system for many of the detector components}
%FTE
\dword{fte}{FTE}{full-time equivalent. A unit of labor
for the project. One year of work from one person}
%art
\dword{art}{art}{A software framework implementing an
event-based execution paradigm} %http://art.fnal.gov/
%sequential access via metadata
\dword{sam}{SAM}{sequential
access via metadata}{A data-handling system to store and retrieve
files and associated metadata, including a complete record of the
processing that has used the files}
%art data aquisition
\dword{artdaq}{artdaq}{A data acquisition toolkit for data transfer, aggregation and processing}
%beamline
\dword{beamline}{beamline}{A sequence of control and monitoring devices used for the formation of a directed collection of particles}
%conceptual design report
\dword{cdr}{CDR}{conceptual design report}{A formal project
document %required by funding agencies
that describes the experiment
at a conceptual level}
%conventional facilities
\dword{cf}{CF}{conventional facilities}{Pertaining to
construction and operation of buildings and conventional infrastructure, and for \dword{lbnf-dune}, CF includes the excavation caverns}
%charge parity
\dword{cp}{CP}{charge parity}{Product of charge and parity
transformations}
%product of charge, parity and time-reversal
\dword{cpt}{CPT}{charge, parity, and time reversal symmetry}{product of charge, parity
and time-reversal transformations}
%charge-parity symmetry violation
\dword{cpv}{CPV}{charge-parity symmetry violation}{Lack of
symmetry in a system before and after charge and parity
transformations are applied.
For CP symmetry to hold, a particle turns into its
corresponding antiparticle under a charge transformation, and a parity
transformation inverts its space coordinates, i.e. produces the mirror image}
%us department of energy
\dword{doe}{DOE}{U.S. Department of Energy}
\dword{fra}{FRA}{Fermi Research Alliance}{A joint partnership of the University of Chicago and the Universities Research Association (URA) that manages and operates Fermilab on behalf of the \dword{doe}}
% \dword{us}{USA}{United States of America}
%deep underground neutrino experiment
\dword{dune}{DUNE}{Deep Underground Neutrino Experiment}{A leading-edge, international experiment for neutrino science and proton decay studies}
%environment, safety and health
\dword{esh}{ES\&H}{environment, safety and health}{A discipline and specialty that studies and implements practical aspects of environmental protection and safety at work} % The LBNF/DUNE ES\&H program complies with applicable standards and local, state, and federal legal requirements through the Fermilab ``work smart'' set of standards and the contract between Fermi Research Alliance and the DOE Office of Science (FRA-DOE)}
\dword{ppe}{PPE}{personnel protective equipment}{Equipment worn to minimize exposure to hazards that cause serious workplace injuries and illnesses}
\dword{odh}{ODH}{oxygen deficiency hazard}{a hazard that occurs when inert gases such as nitrogen, helium, or argon displace room air and thus reduce the percentage of oxygen below the level required for human life}
\dword{feshm}{FESHM}{Fermilab Environment, Safety and Health Manual}{The document that contains Fermilab's policies and procedures designed to manage environment, safety, and health in all its programs}
%far site conventional facilities
\dword{fscf}{FSCF}{far site conventional facilities}{The
\dword{cf} at the DUNE far detector site, \dword{surf}}
%near site conventional facilities
\dword{nscf}{NSCF}{near site conventional facilities}{The
\dword{cf} at the DUNE near detector site, \dword{fnal}}
%grand unified theory
\dwords{gut}{GUT}{grand unified theory}{grand unified theories}{A class of theories that unifies the electroweak and strong forces}
%liquid argon
\dword{lar}{LAr}{liquid argon}{Argon in its liquid phase; it is a cryogenic liquid with a boiling point of %%% \SI{-90}{$^\circ{C}$} (\SI{87}{K}) and density of \SI{1.4}{g/ml}}
%long-baseline
\dword{lbl}{LBL}{long-baseline}{Refers to the distance between the
neutrino source and the \dword{fd}. It can also refer to the distance between the near and far detectors.
The ``long'' designation is an approximate and relative distinction. For DUNE, this distance (between \dword{fnal} and \dword{surf}) is approximately \SI{1300}{km}}
%long-baseline neutrino facility
\dword{lbnf}{LBNF}{Long-Baseline Neutrino Facility}{The
organizational entity responsible for developing the neutrino beam, the cryostats
and cryogenics systems, and the conventional facilities for DUNE}
\dword{lbnf-dune}{LBNF/DUNE}{LBNF and DUNE project}{The overall global project, including \dword{lbnf} and \dword{dune}}
\dword{lbnc}{LBNC}{Long-Baseline Neutrino Committee}{The committee, composed of internationally prominent scientists with relevant expertise, charged by the \dword{fnal} director to review the scientific, technical, and managerial progress, plans and decisions associated with \dword{dune}}
\dword{ncg}{NCG}{Neutrino Cost Group}{A group of internationally prominent scientists with relevant experience that is charged by the \dword{fnal} director to review the cost, schedule, and associated risks for the \dword{dune} experiment}
%mass hierarchy
\dword{mh}{MH}{mass hierarchy}{Describes the separation
between the mass squared differences related to the solar and
atmospheric neutrino problems (also written as \dword{mo})}
\dword{mo}{MO}{mass ordering}{See \dword{mh}}
%fnal main injector
\dword{mi}{MI}{Fermilab Main Injector}{An accelerator at
\dword{fnal} that provides a beam of high-energy protons that upon
striking a target produce secondaries that decay to provide the
neutrinos directed toward the DUNE far detector}
%protons on target
\dword{pot}{POT}{protons on target}{Typically used as a unit
of normalization for the number of protons striking the neutrino
production target}
%quality assurance
\dword{qa}{QA}{quality assurance}{The set of actions taken to provide confidence that quality requirements are fulfilled, and to detect and correct poor results}
%quality control
\dword{qc}{QC}{quality control}{An aggregate of activities (such as design analysis and inspection for defects) performed to ensure adequate quality in manufactured products}
%standard model
\dword{sm}{SM}{standard model}{Refers to a theory describing
the interaction of elementary particles}
%technical design report
\dword{tdr}{TDR}{technical design report}{A formal project
document %required by funding agencies
that describes the experiment at a technical level}
\dword{prelimdr}{PDR}{preliminary design report}{A formal project
document %required by funding agencies
that describes the experiment at a preliminary design level}
%interim design report
\dword{tp}{IDR}{interim design report}{An intermediate
milestone on the path to a full \dword{tdr}} % changed from ``technical proposal'' 6/6/2018
%%%%%%%%%%%%% PROJECT AND PHYSICS VOLUME list for acronyms below %%%%%%%%%%%%
\dword{ckm}{CKM matrix}{Cabibbo-Kobayashi-Maskawa
matrix}{Refers to the matrix describing the mixing between mass and
weak eigenstates of quarks}
\dword{cl}{CL}{confidence level}{Refers to a probability
used to determine the value of a random variable given its
distribution}
\dword{pmns}{PMNS}{Pontecorvo-Maki-Nakagawa-Sakata}{A type of matrix that describes the mixing between mass and weak eigenstates of
the neutrino}
%%%%%%%%%%%%%%%%%.....................
%%%%%%%%%%%%% PROJECT AND DETECTORS VOLUME list for acronyms below %%%%%%%%%%%%
\dwords{cpa}{CPA}{cathode plane assembly}{cathode plane assemblies}{The component of the \dword{sp} detector module that provides the drift HV cathode}
\dword{fc}{FC}{field cage}{The component of a \dword{lartpc} that contains and shapes the applied \efield}
\dword{cpafc}{CPA/FC}{A pair of \dword{cpa} panels and the top and bottom \dword{fc} portions that attach to the pair; an intermediate assembly for installation into the \dword{spmod} }
\dword{topfc}{top FC}{top field cage}{The horizontal portions of the \dword{sp} \dword{fc} on the top of the \dword{tpc}}
\dword{botfc}{bottom FC}{bottom field cage}{The horizontal portions of the \dword{sp} \dword{fc} on the bottom of the \dword{tpc}}
\dword{ewfc}{endwall FC}{endwall field cage}{The vertical portions of the \dword{sp} \dword{fc} near the wall}
\dword{gp}{GP}{ground plane}{An electrode held electrically neutral relative to Earth ground voltage; it is mounted on the \dword{fc} in a \dword{spmod} to protect the cryostat wall}
\dword{gg}{ground grid}{An electrode held electrically neutral relative to Earth ground voltage; it is installed between the cathode and the \dwords{pd} in a \dword{dpmod} to protect the \dwords{pmt}, maintaining high transparency to light}
\dword{alara}{ALARA}{as low as reasonably
achievable}{Typically used with regard management of radiation
exposure but may be used more generally. It means making every
reasonable effort to maintain e.g., exposures, to as far below the
limits as practical, consistent with the purpose for that the
activity is undertaken}
\dword{ecal}{ECAL}{electromagnetic calorimeter}{A detector
component that measures energy deposition of traversing particles (in the near detector conceptual design)}
\dword{hv}{HV}{high voltage}{Generally describes a voltage
applied to drive the motion of free electrons through some media, e.g., LAr}
% can also use in the text: \dword{sp} \dword{detmodule}
\dword{spmod}{SP module}{single-phase DUNE \dword{fd} module}
\dword{dpmod}{DP module}{dual-phase DUNE \dword{fd} module}
% \dword{dsp}{DUNE-SP}{The \dword{sp} DUNE detector} % No they are det modules!
% \dword{ddp}{DUNE-DP}{The \dword{dp} DUNE detector}% No they are det modules!
\dword{tcoord}{TC}{technical coordinator}{A member of the \dword{dune} management team responsible for organizing the technical aspects of the project effort; is head of \dword{tc}}
\dword{rcoord}{RC}{resource coordinator}{A member of the \dword{dune} management team responsible for coordinating the financial resources of the project effort}
% \dword{tc}{TCN}{technical coordination}{The DUNE organization responsible for overall integration of the detector elements and successful execution of the detector construction project; areas of responsibility include general project oversight, systems engineering, \dword{qa} and safety}
\dword{tc}{technical coordination}{The DUNE organization responsible for overall integration
of the detector elements and successful execution of the detector
construction project; areas of responsibility include
general project oversight, systems engineering, \dword{qa} and safety}
\dword{exb}{EB}{executive board}{The highest level DUNE
decision-making body for the collaboration}
\dword{tb}{TB}{technical board}{The DUNE organization responsible for
evaluating technical decisions}
\dword{rrb}{RRB}{Resources Review Board}{A part of \dword{dune}'s international project governance structure, composed of representatives of all funding agencies that sponsor the project, and of \dword{fnal} management, established to provide coordination among funding partners and oversight of \dword{dune}}
\dword{inc}{INC}{International Neutrino Council}{A highest-level international advisory body to the U.S. \dword{doe} and the \dword{fnal} directorate on matters related to the \dword{lbnf} and the \dword{pip2} projects. This council is composed of representatives from the international funding agencies and \dword{cern} that make major contributions the infrastructure}
%%%%%%%%%%%%% PHYSICS AND DETECTORS VOLUME list for acronyms below %%%%%%%%%%%%
\dword{cc}{CC}{charged current}{Refers to an interaction
between elementary particles where a charged weak force carrier
($W^+$ or $W^-$) is exchanged}
\dword{dis}{DIS}{deep inelastic scattering}{Refers to the
interaction of an elementary charged particle with a nucleus in an
energy range where the interaction can be modeled as taking place with
individual nucleons}
\dword{fsi}{FSI}{final-state interactions}{Refers to
interactions between elementary or composite particles subsequent to
the initial, fundamental particle interaction, such as may occur as
the products exit a nucleus}
\dword{geant4}{Geant4}{A
software toolkit for the simulation of the passage of particles
through matter using \dword{mc} methods}
\dword{genie}{GENIE}{Generates Events for Neutrino Interaction
Experiments}{Software providing an object-oriented neutrino
interaction simulation resulting in kinematics of the products of
the interaction}
\dword{mc}{MC}{Monte Carlo}{Refers to a method of numerical
integration that entails the statistical sampling of the integrand
function.
Forms the basis for some types of detector and physics simulations}
\dword{qe}{QE}{quasi-elastic}{Refers to interaction between
elementary particles and a nucleus in an energy range where the
interaction can be modeled as occurring between constituent quarks
of one nucleon and resulting in no bulk recoil of the resulting
nucleus}
%%%%%%%%%%%%%%%%%%%%%%%%% PROJECT VOLUME list for acronyms below %%%%%%%%%%%%%%%
\dword{mou}{MoU}{memorandum of understanding}{A document
summarizing an agreement between two or more parties}
\dword{pip2}{PIP-II}{Proton Improvement Plan II}{A \dword{fnal} project for
improving the protons on target delivered delivered by the \dword{lbnf} neutrino production beam.
This is version two of this plan and it is planned to be followed by a PIP-III}
\dword{sdsta}{SDSTA}{South Dakota Science and Technology
Authority}{The legal entity that manages \dword{surf}, in Lead, S.D}
\dword{sdsd}{SDSD}{Fermilab South Dakota Services Division}{A Fermilab division responsible providing host laboratory functions at SURF in South Dakota}
\dword{firus}{FIRUS}{Facility Information Reporting Utility System}
{The safety system at \dword{surf}}
\dword{bsi}{BSI}{building and site infrastructure}
{The work package for outfitting of the \dword{lbnf} underground infrastructure}
\dword{wbs}{WBS}{work breakdown structure}{An organizational
project management tool by which the tasks to be performed are
partitioned in a hierarchical manner}
%%%%%%%%%%%%%%%%%%%%%%%%% PHYSICS VOLUME list for acronyms below %%%%%%%%%%%%%%%
\dword{br}{BR}{branching ratio}{A fractional probability for a
decay of a composite particle to occur into some specified set or
sets of products}
\dword{bsm}{BSM}{beyond the standard model}
\dword{dm}{DM}{dark matter}{The term given to the unknown
matter or force that explains measurements of galaxy motion % motion of galaxies
that are otherwise inconsistent with the amount of mass associated
with the observed amount of photon production}
\dword{bdm}{BDM}{boosted dark matter}{A new model that describes a relativistic dark matter particle boosted by the annihilation of heavier dark matter particles in the galactic center or the sun}
\dword{cern}{CERN}{European Organization for Nuclear
Research}{The leading particle physics laboratory in Europe and home to the ProtoDUNEs. (In French, the Organisation Europ\'{e}enne pour la Recherche Nucl\'{e}aire, derived from Conseil Europ\'{e}en pour la Recherche Nucl\'{e}aire)}
\dword{dsnb}{DSNB}{diffuse supernova neutrino background}{The
term describing the pervasive, constant flux of neutrinos due to all
past supernova neutrino bursts}
\dword{espp}{ESPP}{European Strategy for Particle Physics}{The
%European Strategy for Particle Physics is the
cornerstone of Europe's
decision-making process for the long-term future of the
field. Mandated by the \dword{cern} Council, it is formed through a broad
consultation of the grass-roots particle physics community, it
actively solicits the opinions of physicists from around the world,
and it is developed in close coordination with similar processes in
the USA and Japan in order to ensure coordination between regions and
optimal use of resources globally}
\dword{gar}{GAr}{gaseous argon}{argon in its gas phase}
\dword{gartpc}{GArTPC}{gaseous argon time-projection chamber}{A \dword{tpc} filled with gaseous argon; a possible technology choice for the \dword{nd}}
\dword{globes}{GLoBES}{General Long-Baseline Experiment
Simulator}{A software package for simulating energy spectra of
neutrino flux, interactions, and energy spectra measured after application of some
model of a detector response)}
\dword{snowglobes}{SNOwGLoBES}{SuperNova
Observatories with GLoBES} {From the official description: SNOwGLoBES is public software for computing interaction rates and distributions of observed quantities for \dword{snb} neutrinos in common detector materials} % (Anne thinks this was too long.)
% The intent is to provide a very simple and fast code and data package which can be used for tests of observability of physics signatures in current and future detectors, and for evaluation of relative sensitivities of different detector configurations. The event estimates are made using available cross-sections and parameterized detector responses. Water, argon, scintillator and lead-based configurations are included. The package makes use of GLoBES front-end software. SNOwGLoBES is not intended to replace full detector simulations; however output should be useful for many types of studies}
% are these really used anywhere?
\dword{l/e}{L/E}{length-to-energy ratio}
\dword{lri}{LRI}{long-range interactions}
% \dword{solarmass}{$M_{\odot}$}{solar mass}
\dword{nc}{NC}{neutral current}{Refers to an interaction
between elementary particles where a neutrally charged weak force carrier
($Z^0$) is exchanged}
\dword{nh}{NH}{normal hierarchy}{Refers to the neutrino mass
eigenstate ordering whereby the sign of the mass squared difference
associated with the atmospheric neutrino problem is positive}
\dword{ih}{IH}{inverted hierarchy}{Refers to the neutrino mass
eigenstate ordering whereby the sign of the mass squared difference
associated with the atmospheric neutrino problem is negative}
\dword{no}{NO}{normal ordering}{Refers to the neutrino mass
eigenstate ordering whereby the sign of the mass squared difference
associated with the atmospheric neutrino problem is positive}
\dword{io}{IO}{inverted ordering}{Refers to the neutrino mass
eigenstate ordering whereby the sign of the mass squared difference
associated with the atmospheric neutrino problem is negative}
\dword{msw}{MSW}{Mikheyev-Smirnov-Wolfenstein effect}{Explains
the oscillatory behavior of neutrinos produced inside the sun as
they traverse the solar matter}
\dword{nsi}{NSI}{nonstandard interaction}{A general class of
theory of elementary particles other than the Standard Model}
\dword{pfive}{P5}{Particle Physics Project Prioritization
Panel}{The Particle Physics Project Prioritization Panel (P5) was a
subpanel of the High Energy Physics Advisory Panel (HEPAP). It completed
its Report, a ten-year strategic plan for high energy physics in the
U.S., in 2014. This report included a recommendation that ``host a world-leading neutrino
program that will have an optimized set of short- and long-baseline neutrino oscillation experiments, and its long-term focus
is a reformulated venture referred to here as the Long Baseline
Neutrino Facility (LBNF)''}
\dword{sme}{SME}{standard-model extension}{an effective field theory that contains the \dword{sm}, general relativity, and all possible operators that break Lorentz symmetry (Wikipedia)}
\dword{susy}{SUSY}{supersymmetry}{Theoretical symmetry between a fermion and a boson}
\dword{wimp}{WIMP}{weakly-interacting massive particle}{A
hypothesized particle that may be a component of dark matter}
%%%%%%%%%%%%%%%%%%%%%%%%% DETECTORS VOLUME list for acronyms below %%%%%%%%%%%%%%%
\dword{ce}{CE}{cold electronics}{Analog and digital readout electronics that operate at cryogenic temperatures}
\dword{crp}{CRP}{charge-readout plane}{In the \dword{dp} technology, a collection of
electrodes in a planar arrangement placed at a particular voltage
relative to some applied \efield such that drifting electrons
may be collected and their number and time may be measured}
\dword{dram}{DRAM}{dynamic random access memory}{A computer memory technology}
\dword{fnal}{Fermilab}
{Fermi National Accelerator Laboratory}{U.S. national laboratory in Batavia, IL. It is the laboratory that hosts \dword{dune} and serves as its near site}
\dword{bnl}{BNL}{Brookhaven National Laboratory}{US national laboratory in Upton, NY}
\dword{slac}{SLAC}{SLAC National Accelerator Laboratory}{US national laboratory in Menlo Park, CA}
\dword{lbnl}{LBNL}{Lawrence Berkeley National Laboratory}{US national laboratory in Berkeley, CA}
\dword{anl}{ANL}{Argonne National Laboratory}{US national laboratory in Lemont, IL}
\dword{lanl}{LANL}{Los Alamos National Laboratory}{US national laboratory in Los Alamos, NM}
\dword{fs}{FS}{full stream}{Relates to a data stream that has not undergone selection, compression or other form of reduction}
\dword{lem}{LEM}{large electron multiplier}{A micro-pattern detector suitable for use in ultra-pure argon vapor; LEMs consist of copper-clad PCB boards with sub-millimeter-size holes through which electrons undergo amplification}
\dword{lng}{LNG}{liquefied natural gas}{Pertaining to natural gas in its liquid phase}
\dword{mip}{MIP}{minimum ionizing particle}{Refers to a
particle traversing some medium such that the particle's mean energy loss is
near the minimum}
%{Refers to a momentum traversing some medium such that the particle is losing near the minimum amount of energy per distance traversed} % some \mip and some \dword{mip}. If time, rectify. ??
\dword{pd}{PD}{photon detector}{The detector
elements involved in measurement of the number and arrival times of
optical photons produced in a detector module}
\dword{pmt}{PMT}{photomultiplier tube}{A device that makes use
of the photoelectric effect to produce an electrical signal from the
arrival of optical photons}
\dword{ppm}{ppm}{parts per million}{A concentration equal to one part in $10^{-6}$}
\dword{ppb}{ppb}{parts per billion}{A concentration equal to one part in $10^{-9}$}
\dword{ppt}{ppt}{parts per trillion}{A concentration equal to one part in $10^{-12}$}
% these should be abbrev
\dword{rio}{RIO}{reconfigurable input output}
%signal over noise ratio -- merge these two (tpcelec sp uses 2nd)
\dword{s/n}{S/N}{signal-to-noise}{signal-to-noise ratio}
\dword{snr}{\mbox{S/N}}{signal-to-noise ratio}
\dword{ssp}{SSP}{ \dword{sipm} signal processor}
\dword{sbn}{SBN}{Short-Baseline Neutrino}{A \dword{fnal} program consisting of three collaborations, \dword{microboone}, \dword{sbnd}, and \dword{icarus}, to perform sensitive searches for $\nue$ appearance and $\numu$ disappearance in the Booster Neutrino Beam}
\dword{stt}{STT}{straw tube tracker}
\dword{wire board}{wire board}{At the head end of the APA in the \dword{sp} \dword{tpc}, stacks of electronics boards referred to as ``wire boards'' are arrayed to anchor the wires. They also provide the connection between the wires and the cold electronics} %?? long for a word. ??
\dword{wls}{WLS}{wavelength-shifting}{A material or process by
which incident photons are absorbed by a material and photons are
emitted at a different, typically longer, wavelength}
\dword{tpb}{TPB}{tetra-phenyl butadiene}{A \dword{wls} material}
\dword{ptp}{PTP}{p-terphenyl}{A \dword{wls} material}
\dword{sft}{SFT}{signal feedthrough}{A cryostat penetration allowing for the passage of cables or other extended parts}
\dword{sftchimney}{SFT chimney}{signal feedthrough chimney}{In the \dword{dp} technology, a volume above the cryostat penetration used for a signal feedthrough}
\dword{catiroc}{CATIROC}{charge and time integrated readout chip}{A complete read-out chip manufactured in AustriaMicroSystem designed to read arrays of 16 photomultipliers}
\dword{wr}{WR}{White Rabbit}{A component of the timing system that forwards clock signal and time-of-day reference data to the master timing unit}