There are 112 temperature sensors on the NPS crystals: 56 on front of a sample of crystals and 56 on the back of those same crystals:
Channels are numbered assuming a back view of the detector (beam line is on the left of the above picture). The green-colored crystals are the ones with a temperature sensor on their front and on their back sides.
The temperature sensors are PFA T/C Type K - 72" (order code: 201-301) from TC Direct: https://www.tcdirect.com/deptprod.asp?deptid=180/21
Sensors will be connected to 3 multiplexers KEYSIGHT 34921:
Tentative location of the multiplexers inside the box:
The DAQ unit is KEYSIGHT 34980A:
The following spreadsheets details the association between the temperature sensor and the slot and channel in the KEYSIGHT 34921T module: Sensors slot/channel