Advanced Measurement Technology ORTEC A-576 A-PAD, Руководство по эксплуатации и обслуживанию

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Fig. 1. Block diagram of Alpha Spectrometer.
ORTEC MODEL A-576 A-PAD
Preamplifier, Amplifier, Discriminator with Bias Supply
1. DESCRIPTION
The ORTEC Model A-576 A-PAD is a single- wide The energy ranges controllable from the front panel
NIM module intended for performing alpha are 3 to 8 MeV, 4 to 7 MeV, 3 to 5 MeV, 4 to 6 MeV, 5
spectroscopy and counting when used in conjunction to 7 MeV, and 6 to 8 MeV. The internal test pulser can
with a silicon surface barrier detector. The instrument provide a signal at 5 MeV, 6 MeV, or 7 MeV by
includes a variable detector bias supply, a internal jumper selection.
preamplifier, a shaping and stretching amplifier, a
biased amplifier, a test pulser, and a discriminator
In addition to the calibrated Energy output, the
(Fig. 1). The detector bias supply and the amplifier COUNT front-panel BNC connector provides a NIM-
have selectable polarity so that it can be ued with any standard positive logic pulse for gross alpha counting
charged-particle silicon semiconductor detector. and/or routing. The DET BIAS MONITOR front-panel
Examples are ORTEC's conventional and test points permit monitoring detector leakage current
Ruggedized
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Si surface barrier detectors and its ion- and detector bias voltage.
implanted Si detectors.