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SI8B Ci-8B Pancake Geiger Counter Tube Beta Gamma Dosimeter mica window sbm, US $42.00 – Picture 0
SI8B Ci-8B Pancake Geiger Counter Tube Beta Gamma Dosimeter mica window sbm, US $42.00 – Picture 0

Si8b Ci-8b Pancake Geiger Counter Tube Beta Gamma Dosimeter Mica Window Sbm

US $42.00

  • Москва, Russian Federation
  • Aug 1st
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Technical characteristics of SI-8B:   Counting start voltage - 305 V. Working voltage - 390 V. The highest operating current is 18.2 A.   The length of the plateau is from 350 V to 550 V. The highest working speed of counting is 3400 imp / s. The highest operating current is 18.2 A. The working voltage range is from 360 V to 440 V.   The slope of the SI-8B plateau is 0.3% / V. The slope of the current-voltage characteristic is no more than 1.25% / V. The amplitude of the voltage pulses is at least 20 V.   Dead time - 160 s. Sensitivity to 60Co - from 350 imp / R to 500 imp / R. Current sensitivity at P = 1.29 nA / kg (5 R / s) - from 8 A to 15 A.   Beta radiation detection efficiency - from 50% to 85%. The interelectrode capacitance is 13 pF. Own background - 2 pulses / s.   The area of the mica window is 33 cm2. Operating time - 1010 imp. Operating temperature range - from -50 ° С to + 60 ° С.   Dimensions: - diameter - 80 mm; - height - 30 mm. Weight - no more than 93 g.   The SI-8B counter has an entrance window made of fine mica, which makes it possible to register not only beta and gamma radiation, but also alpha particles and soft X-rays. The mica window of the counter is transparent, there is a spiral wire electrode under it, the other electrode is the body of the device.   In the presence of a -background, counters register the total effect of - and -radiation. To determine the value from the -background, a steel screen 2 mm thick is used, which completely screens -radiation. The difference in the count rate without a screen and with a screen gives the value of the count rate due to -contamination of the surface.
Condition:
Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections. ...
Radiation Detector Type Geiger Counter
Brand Unbranded
MPN Does Not Apply

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