ORTEC DSPEC Pro, Hardware User Manual

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DSPEC Pro
®
Digital Gamma-Ray Spectrometer User’s Manual 794380D / 0914
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SET_DELAY_COLLECTION value
Controls the pileup rejector by setting a width threshold such that if a fast channel discrimi-
nator pulse is wider than value, the pulse is rejected. This portion of the pileup rejector
rejects pulses that are too close together to be detected separately by the fast channel. Value
is in microseconds with a range from 0.250 to 1.6 in steps of 0.05. See also
SHOW_DELAY_COLLECTION.
SET_DELAY_SAMPLE num
Delays the waveform collected in InSight mode by num points. Num must be between 0 and
65535. See also SHOW_DELAY_SAMPLE.
SET_DEVICE
SET_DISPLAY
SET_FRONT_BYPASS
Not used; included for backward compatibility.
SET_GAIN_ADJUSTMENT value
Sets the gain stabilization adjustment to an arbitrary value from
!
65535 to 65535. This
adjustment is usually made only by the gain stabilizer, and reset to 0 with the INITIALIZE_
GAIN_STABILIZATION command. See also SHOW_GAIN_ADJUSTMENT.
SET_GAIN_CHANNEL chan
Sets the center channel for the stabilizer gain peak. If a gain channel is chosen such that the
beginning channel or ending channel would be below channel 0 or above the maximum
channel as determined by the conversion gain, the gain peak width is reduced until the peak
fits the device boundaries. A gain channel and width must be set before gain stabilization
can be enabled.
SET_GAIN_COARSE num
This sets the coarse gain to num, which must be 1, 2, 4, 8, 16, or 32. See also SHOW_
GAIN_COARSE.
SET_GAIN_CONVERSION chans
Sets the conversion gain. The conversion gain defines the number of channels within the
device that will used for spectral data. This has the effect of altering the resolution of the
ADC from 14 bits (conversion gain = 16384) to 9 bits (conversion gain = 512) for the
device. See also SHOW_GAIN_CONVERSION.
Legal Commands:
SET_GAIN_CONVERSION 0<CR>
Conversion gain set to default (16384).
SET_GAIN_CONVERSION 512<CR> Conversion gain set to 512 channels.
SET_GAIN_CONVERSION 1024<CR> Conversion gain set to 1024 channels.