Investigations of multiple backscattering and albedos of 1.12 MeV gamma photons in elements and alloys

作者: Arvind D. Sabharwal , Bhajan Singh , B.S. Sandhu

DOI: 10.1016/J.NIMB.2008.10.072

关键词: Function (mathematics)Atomic numberIntensity (heat transfer)PhotonSaturation (chemistry)Monte Carlo methodPhysicsEffective atomic numberBackground noiseAtomic physics

摘要: Abstract The energy and intensity distributions of multiple backscattering 1.12 MeV gamma photons emerging from targets elements alloys are observed as a function thickness atomic number ( Z ) the target. numbers these multiply backscattered events show an increase with in target thickness, then saturate for particular called saturation (depth). decreases increasing varies e − . backscattering, interfering background noise Compton profile, has been successfully used to assign ‘‘effective number’’ alloys. Monte Carlo calculations also support present experimental results. number, dose albedos found be saturating same where saturate.

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