Gbs-elektronik MCA166-USB Manuel d'utilisateur télécharger pdf (Page 64)

MCA166-USB

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)

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.

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Gbs-elektronik MCA166-USB Manuel d'utilisateur Page 64