NinjaCap Design
To generate ninjaCaps, appropriate grommet type needs to be added to the probe SD file.
If you are designing a probe with AtlasViewer 3D probe design tool then while adding the optode select appropriate grommet type.
If you didn't add grommet type while adding the probe then you can select using the edit optode radio button and switch grommet type with grommet type dropdown menu.
Follow the typical process to generate a probe with the AtlasViewer SDgui. Then, for each source, detector AND dummy optode, select the Grommet Type of that optode. The Grommet Type is an identifier that is used in the cap generation to place the desired element (holder, grommet, …) at the position of the corresponding optode. Selecting the type “#NONE” will skip the placement of a holder/ an element for this optode. You can assign any Grommet Type identifier to any optode (source, detector, and dummy optodes)!
Please see the table below for grommet codes and this link for more details.
Please note for Short Separation (SS) channels: Depending on the type of grommet you choose, short separation channels (holes for a SS fiber) are typically already included. In your SD probe layout, you might have added dedicated SS optodes. If you did, just give those a “#NONE” ID to skip the placement of a dedicated element at the SS optode location.
Please make sure you follow the keep out guidelines: If you place grommets in the keep out region, they will overlap with the ear slits.
