Moreira Denise S, Koskinas Marina F, Yamazaki Ione M, Dias Mauro S
Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP), Centro do Reator de Pesquisas, CRPq, Pinheiros, São Paulo, SP, Brazil.
Appl Radiat Isot. 2010 Apr-May;68(4-5):596-9. doi: 10.1016/j.apradiso.2009.11.004. Epub 2009 Nov 17.
In this paper results of X-ray and gamma-ray emission probabilities per decay of (51)Cr and (241)Am are presented. The measurements were carried out by means of HPGe planar and REGe spectrometers. The activity of (51)Cr and (241)Am samples was determined in a 4pibeta-gamma coincidence counting system. The HPGe spectrometers were calibrated in a well defined geometry by means of (54)Mn, (55)Fe, (57)Co, (133)Ba, (152)Eu, (166m)Ho and (241)Am sources, previously standardized in a 4pibeta-gamma coincidence system. The MCNP Monte Carlo code was used for simulation of the REGe spectrometer calibration curve, for the selected geometry, and compared with the experimental curve. The experimental results were compared with data from literature.
本文给出了(51)Cr和(241)Am每次衰变的X射线和γ射线发射概率的结果。测量是通过HPGe平面谱仪和REGe谱仪进行的。(51)Cr和(241)Am样品的活度在4πβ-γ符合计数系统中测定。HPGe谱仪通过(54)Mn、(55)Fe、(57)Co、(133)Ba、(152)Eu、(166m)Ho和(241)Am源在定义明确的几何条件下进行校准，这些源先前已在4πβ-γ符合系统中标准化。使用MCNP蒙特卡罗代码对所选几何条件下的REGe谱仪校准曲线进行模拟，并与实验曲线进行比较。将实验结果与文献数据进行比较。
