作者: B.A. Almayahi
DOI: 10.1016/J.JRRAS.2015.02.008
关键词: Pulse height 、 Optics 、 Materials science 、 Gamma ray detectors 、 Electromagnetic shielding 、 Gamma ray 、 Scintillator 、 Photomultiplier 、 Range (particle radiation)
摘要: Abstract Backscattering peak is one of the main features pulse height spectrum from a gamma ray detector. This arises mainly materials outside like source baking, photomultiplier tube housing, shielding etc. The effect backing on relative importance backscattered for using NaI (Tl) scintillation detector measured. Gamma energies in range 0.088 MeV to 1.253 MeV are used. factor (F b ) measurements have been carried out (2 > Fb ≥ 1) various pure concrete thickness 2 cm 30 cm.