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RG-220 Portable Alpha/Beta Counter (Nasal Swab Detector)

Web Editor:Jiechuang Nuclear Instruments │ Published:: 2026-04-17 23:00:23

  RG-220 Portable Alpha/Beta Counter, can be used as radioactive nasal swab detector, also applicable to water quality monitoring, food hygiene, environmental radiation assessment and radiation protection, for aerosol filter samples, smear samples, wipe samples measurement.

  Introduction

  The RG-220 Portable Alpha/Beta Counter (Radioactive Nasal Swab Detector) is a complete portable alpha/beta detection system independently developed by Jiechuang Nuclear Instruments (Beijing) Technology Co., Ltd. It can be used for security inspection, counter-terrorism, and pollution analysis at nuclear accident sites. It can perform rapid alpha, beta particle measurement and spectrum acquisition. Based on the acquired spectrum information, users can use it as a preliminary judgment basis.

  The instrument is portable with built-in rechargeable battery, equipped with handle, placed in a sturdy and safe suitcase, convenient for field measurement. The device has a built-in thermal printer, and users can print measurement results in real time.

  The system main detector is PIPS detector. The instrument is fully digital, integrating detector, preamplifier and shaping amplifier, MCA, power supply, touchscreen, and printer, with low power consumption, simple operation, and easy to carry.

  

 

  Product Features

  l Detector type: PIPS detector;

  l Detector size: 9cm2, 15cm2, 17cm2, 20cm2 multiple sizes optional;

  l Measurement energy range: Beta >100 keV, Alpha >3MeV;

  l Detection efficiency: 239Pu ≥27%, 90Sr-90Y ≥33% (20cm2 detector);

  l Background: environmental gamma ≤100nSv/h: alpha <0.6cpm, beta <48cpm (20cm2 detector);

  l Cross-talk: beta-alpha (90Sr-90Y) <0.3%, alpha-beta (239Pu) <5%;

  l Electronics: built-in low-noise preamplifier and digital MCA, can display spectrum;

  l Display and others: 5-inch touchscreen display, built-in thermal printer, results can be printed in real time;

  l Operating time: ≥15 hours;

  l Operating temperature: 0~40℃;

  l Dimensions: 227 X 150 X 153mm;

  l Weight: 2.4 kg.




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