球型プラスチック検出器による宇宙線荷電粒子束密度の測定 [in Japanese] Measurements of Flux Densities of Cosmic-Ray Charged Particles Using a Spherical Plastic Scintillation Detector [in Japanese]
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A spherical plastic scintillation spectrometer has been developed for the determination of flux densities of cosmic-ray-charged particles around nuclear facilities. The accuracy of measured flux densities was improved by taking into consideration the pulse-height distribution caused by cosmic-ray photons and by the electro-magnetic interaction between cosmic rays and photomultiplier tube components. From the measurements performed in a natural environment, it became clear that the flux density of cosmic-ray-charged particles varied with the location, and in some cases almost 10 percent of the cosmic-ray-charged particles was shielded by the surroundings of the places monitored.
- Jpn. J. Health Phys.
Jpn. J. Health Phys. 32(3), 277-283, 1997-09-30
Japan Health Physics Society