ORTEC
®
EASY-MCA™ Digital Gamma-Ray Spectrometer User’s Manual
931044C / 1014
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SET_GATE_ANTICOINCIDENT
Causes the EASY-MCA to use the ADC gate input signal in anticoincident mode. See also
SET_GATE_OFF, SET_GATE_COINCIDENT, and SHOW_GATE.
SET_GATE_COINCIDENT
Causes the EASY-MCA to use the ADC gate input signal in coincident mode. See also
SET_GATE_OFF, SET_GATE_ANTICOINCIDENT, and SHOW_GATE.
SET_GATE_OFF
Causes the EASY-MCA to ignore the state of the ADC gate input signal. See also SET_
GATE_COINCIDENT, SET_GATE_ANTICOINCIDENT, and SHOW_GATE.
SET_INTEGRAL_PRESET count
Sets the ROI integral preset to the specified count. During data acquisition when the sum of
the counts contained in the channels that have the ROI flag set reaches the integral preset
count, the preset is complete and the acquisition is stopped. The actual number of counts in
the ROI integral may exceed the preset value by up to 512 counts due to the pipelined archi-
tecture of the EASY-MCA. Setting an integral preset to 0 counts disables the preset. The
integral preset may be set to from 0 (disabled) to 4294967295 counts. See also CLEAR_
PRESETS and SHOW_INTEGRAL_PRESET.
SET_LIVE ticks
Sets the live-time counter to the specified number of ticks. The number represents live time
in units of 20 ms (50 ticks/s). Normally this value is set by the EASY-MCA during data
acquisition. See also CLEAR_COUNTERS and SHOW_LIVE.
SET_LIVE_PRESET ticks
Sets the live-time preset to the specified number of ticks (20 ms/tick). During data acquisi-
tion when the live-time counter reaches the preset number of ticks, the preset is complete
and the acquisition is stopped. Setting a live-time preset to 0 ticks disables the preset. See
also CLEAR_PRESETS and SHOW_LIVE_PRESET.
SET_LLD chan
Sets the lower level discriminator to chan, which must be between 1 and 8191. See also
SHOW_LLD.
SET_MARK
Not used by the EASY-MCA; included for backward compatibility.
