Precision High-Voltage Sources for Nuclear Radiation Detectors on a Standard Industrial Transformer

Precision high-voltage sources have been developed for nuclear radiation detectors (semiconductor detectors, detectors based on photoelectronic multipliers, etc.). Instead of a specialized high-voltage transformer, a common network (~220 V) POL-12012 transformer was used together with a voltage multiplier. The electrical parameters of the units are as follows: range, from 0 to ±2500 V; power, ≤10 W; efficiency, up to 77%; ripples at a load of 2 MΩ (2 kV), 1 mV; conversion frequency, up to 150 kHz; manual/external control; smooth voltage rise/drop; shutdown upon an overload; temperature drift, ≤0.004%/°C; and operating temperature, –40 to +60°C. Implementation: 3U Euromechanics or an autonomous unit of 80 × 80 × 40 mm. The sources are used in a number of experiments and industrial plants, where they provide quality, reliability, a temperature range, and the required functionality.