Magnet Power Supply for Alpha-particle Spectrometer II
University of California Radiation Laboratory, 1956 - Alpha ray spectrometry - 13 pages
A current regulated power supply has been built to deliver current, continuously variable from 0 to 600 ma, into a load of 4000 ohms. The system is stable to approximately 1 part in 10,000 over long periods of time. Stability has been achieved by using a series tube type of regulator with both a dc amplifier and a chopper amplifier combined to give both long-time and short-time stability.
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_.__ allowed to change ALPHA PARTICLE SPECTROMETER applied boov bridge California Berkeley California January 1956 cathode charging current chassis circuit coil components connected continuously variable control amplifier control tubes copper coupling capacitor dc amplifier error voltage George F grid ground ility incoming dc signal incoming signal input isolated power line variations load to full magnet current MAGNET POWER SUPPLY maximum meter negative end null ohms at 600 operation output terminal photographic plate plate dissipation plate of V10 PLATE SUPPLY polarity potential divider potentiometer powerstat Radiation Laboratory University rectifier reference voltage regulator tubes resistor R1 sampling resistor Schematic Schrader Radiation Laboratory section of R3 short-time shunt signal voltage SPECTROMETER II George spurious signals stabilizing amplifier SUPPLY FOR ALPHA supply the necessary supply voltage UCRL 32 University of California V7 and V8 Voltage drop voltage is equal voltage regulated voltmeter volts watts