AI Article Synopsis
- The study examined various types of radiation detectors used as survey meters for radiation protection, focusing on ionization chambers, Geiger-Mueller (GM) counters, and scintillation detectors.
- Researchers evaluated the energy dependence and angular response of these devices under X-ray and gamma radiation fields, testing specific models from brands like Victoreen and MRK.
- While most survey meters conformed to standard IEC 1017-2 guidelines, some showed significant deviations at lower energy levels, with GM counters particularly sensitive to low-energy photons.
Article Abstract
The aim of this work was to investigate the different types of radiation detectors commonly used for radiation protection purposes as survey meters. The study was performed on survey meters that use different detectors as ionisation chamber, Geiger Mueller (GM) counter and scintillation detector. For each survey meter, energy dependence and angular response in X- and gamma-radiation fields was tested. The following commercially available survey meters were investigated: ionisation chambers Victoreen 451P, Babyline 31 and VA-J-15A, Geiger counter MRK-M87, 6150 AD6 and FAG FH 40F2 and scintillation counter 6150 ADB. As a source of gamma radiation, (137)Cs and (60)Co were used whereas X-ray radiation fields were generated using an X-ray unit. The radiation characteristics of the survey meters were mostly in compliance with references estimated by standard IEC 1017-2. However, some of them showed larger deviation at lower energies. GM counters exhibit strong energy dependence for low-energy photons.
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| http://dx.doi.org/10.1093/rpd/ncu246 | DOI Listing |
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