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Si-3B Geiger counter mica window Alpha- Beta- Gamma- detectors radiacmeter, US $28.60 – Picture 0
Si-3B Geiger counter mica window Alpha- Beta- Gamma- detectors radiacmeter, US $28.60 – Picture 1
Si-3B Geiger counter mica window Alpha- Beta- Gamma- detectors radiacmeter, US $28.60 – Picture 2
Si-3B Geiger counter mica window Alpha- Beta- Gamma- detectors radiacmeter, US $28.60 – Picture 0
Si-3B Geiger counter mica window Alpha- Beta- Gamma- detectors radiacmeter, US $28.60 – Picture 1
Si-3B Geiger counter mica window Alpha- Beta- Gamma- detectors radiacmeter, US $28.60 – Picture 2

Si-3b Geiger Counter Mica Window Alpha- Beta- Gamma- Detectors Radiacmeter

US $28.60

  • Saint-Petersburg, Russian Federation
  • Jan 30th
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Lot of 1 ps. new, never used Counter tube Si-3B with metal cup in original box with manual (see picture*).   * - Absorber Set and Isotope Tray not include, it is my other auction.    - eBay item number 261512758070 It`s Russian device from old laboratory stock, new. Can be use for DIY dosimeter/radiometer. Description:  SI-3B Geiger counter tube with super thin (< 3 mg/cm2) mica window used in high-sensitivity radiacmeter.  It detects the emission of nuclear radiation — alpha particles, beta particles, and gamma rays. Analogues: MST-17    - eBay item number 261469100545   Tech. spec.:     ·         Radiation determine:   alpha*; beta soft/hard; gamma soft/hard *- the distance between source and mica window must be 35 mm or less (for alpha radiation only). ·         Voltage of start of counting: < 1650V ; ·         Operating voltage (recommended): 1650 - 1800V; ·         Length of flat part of counting curve (plateau):  150 V ·         Slope of the counting curve:   < 0.03%; ·         Own background:   < 0.41 counts/s; ·         Maximum radiation: 10,000 counts/min ·         Load resistance: 7-10  MOhm ·         Allowable stray input capacitance: < 10 pF ·         Working temperature range: -20…+40 C ·         Anode material: Platinum ·         Mica window density: < 3 mg/cm2   ·         Weight: ~20g. ·         Dimensions: counter length 100mm, diameter 40mm                       mica window diameter 20 mm.     All counter tubes tested before shipping. Worldwide shipping via Airmail with tracking. Carefully package.  Have any questions please contact me. See my other nuclear lab lots ;)
Condition:
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...
Model SI-3B (Si3B)
Country/Region of Manufacture Russian Federation
Type Geiger counter Dosimerter Radiacmeter

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