M. Kowatari, Y. Tanimura, P. Kessler, S. Neumaier, A. Roettger
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Development of a simultaneous evaluation method of radioactivity in soil and dose rate using CeBr3 and SrI2(Eu) scintillation detectors for environmental monitoring
The simultaneous evaluation of dose rate and radioactivity using newly developed scintillation detectors, i.e. CeBr3 and SrI2(Eu) was invesigated for environmental radiation measurement. Energy dependence and linearity of both detectors were verified by measurements in a low backgrould laboratory operated by the German metrological insititute and found to be applicable to enviromental monitoring purposes. As a result of environmental gamma ray measurements in normal situation, evaluated air kerma rate and radioactivity in/on soil for 137Cs, 134Cs and 40K seemed consistent. Results also support that the method developed in this study is reliable and would be applicable to the environmental radiation measurement.
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