Kvarts DRSB-01 Dosimeter
Scale range ambient dose rate equivalent: 0.003 ... 0.6 μSv/h Range of registered energy 1) gamma radiation, unknown 2) X-ray radiation, unknown 3) beta radiation, unknown 4) alpha radiation, not detected Time of calculations Instant Time of indication continuous Power elements 2 AA batteries Overall dimensions 150x65x21 mm Weight (w/o batteries) 0.125 KG DRSB-01 Geiger Counter is an inexpensive Russian-made Geiger counter, obtainable from eg. eBay, for prices often as low as 17 USD, with 9 USD air mail postage. It is a fairly sensitive detector of gamma and high-energy beta radiation. It is powered by two AA batteries; it is fairly insensitive to drop in the battery voltage, as the lower-voltage NiMH cells will work reliably. The battery life is claimed to be in excess of 200 hours with normal radiation background. The device is built with typical Russian idiotenzicher and soldatenfest design. It indicates photons and beta particles with an audible click (somewhat quiet, especially if the batteries are almost run-down), a green LED blinking in more or less synchronous way with the audio indication, and a red LED indicating attention-requiring level of radiation. There is no measurement of radiation nor integration of the dose, however that can be easily added using a cheap microcontroller. The counter is fairly sensitive; under normal Central-European conditions it gives about 10-40 counts per minute. Some sources claim sensitivity down to 0.003 microsievert. The weak ...
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