Command name
CMD_SET_MCS_INPUT
Description
The command sets the input for the Multi-Channel Scaler.
ip = 0 external TTL signals
ip = 1 internal count rate signal
ip = 2 counts only pulses with amplitude between LLD and ULD threshold
Command syntax
Format integer integer integer long integer
Parameter preamble command ip 0 end flag
Byte String (HEX) A5 5A 55 00 ip 00 00 00 00 00 B9 9B
Used setup value None
Affected setup value mca_input_mcs
MCA state STATE_READY
Command name
CMD_SET_THRESHOLD
Description This command set the analogue threshold value (thr: 2 …60).
Command syntax
Format integer integer integer long integer
Parameter preamble command thr 0 end flag
Byte String (HEX) A5 5A 47 00 thr 00 00 00 00 00 B9 9B
Used setup value None
Affected setup value Threshold
MCA state STATE_READY
Command name
CMD_SET_SHAPING_TIME
Description
The command sets the amplifier shaping time(dtc).
dtc = 1 shaping time low (1 µsec)
dtc = 3 shaping time high (2 or 3 µsec)
41
Command syntax
Format integer integer integer long integer
Parameter preamble command dtc 0 end flag
Byte String (HEX) A5 5A 52 00 dtc 00 00 00 00 00 B9 9B
Used setup value None
Affected setup value Dtc
MCA state STATE_READY
41 The values may be different for some MCA166-USB configurations.
