BTF Location of neutron detector

The input on SYS38x00 are:
N1→ CH29
N2→ CH30

Standard NIM (both of them are coming as TTL then transformed to NIM on the exit not-U in the TTL>NIM LEA converter)
Operating Voltage is 1900V

Tipical counting rates are
N1 = 0.17cps
N2 = 0.31cps


The location of the two detectors are