MCA166-USB
6.1.3 Power supply
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Power supply adequate for commonly used NaI, HPGe, CdTe and proportional
counters
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Current limited mode with indication of overload condition through software; short
circuit protected and automated recovery after overload or shortening
6.1.4 Preamplifier Voltages
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± 12V; maximum current 60mA for each of the voltages
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± 24V; maximum current 60mA for each of the voltages
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Maximum total power at least 2W
6.1.5 High Voltage
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Single positive or negative modular HV supply reaching from 50V to 3000V
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Indication of high voltage sign and value by software
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Calibration within 1% at maximum of bias voltage
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Maximum current 0.5mA or 0.25W (e.g. 1000V and 0.25mA)
6.1.6 Battery
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Rechargeable Li-ion battery with no memory effect
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Deep discharge protected
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Battery capacity 32Wh at 20°C
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Charger input: 9V ... 14V / 0.8A
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Measured values of the battery life time
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If no detector connected: 30 hours
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Expected battery life time with detection systems connected:
Standard IAEA NaI detector (ORTEC/SCIONIX): 27 hours
Bias:
500V, 100µA
Preamplifier:
100mW
Miniature CdTe detection probe (SDP310, RITEC, Latvia): 25 hours
Bias:
400V, 100nA
Preamplifier:
+12V/20mA, -12V/9.5mA (@8.4V)
Standard planar HPGe detector (e.g. Canberra, Ortec): 14 hours
Bias:
2000V, 1nA
Preamplifier:
±12V: 35/-25mA; ±24V: 55/-27mA (@8.4V)
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