Flynn A, Boardman D, Reinhard M I
ANSTO, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia.
Appl Radiat Isot. 2013 Jul;77:145-52. doi: 10.1016/j.apradiso.2013.03.089. Epub 2013 Apr 1.
This work has evaluated synthetic gamma-ray spectra created by the RASE sampler using experimental data. The RASE sampler resamples experimental data to create large data libraries which are subsequently available for use in evaluation of radionuclide identification algorithms. A statistical evaluation of the synthetic energy bins has shown the variation to follow a Poisson distribution identical to experimental data. The minimum amount of statistics required in each base spectrum to ensure the subsequent use of the base spectrum in the generation of statistically robust synthetic data was determined. A requirement that the simulated acquisition time of the synthetic spectra was not more than 4% of the acquisition time of the base spectrum was also determined. Further validation of RASE was undertaken using two different radionuclide identification algorithms.
这项工作使用实验数据评估了由RASE采样器生成的合成伽马射线能谱。RASE采样器对实验数据进行重新采样，以创建大型数据库，随后可用于评估放射性核素识别算法。对合成能量区间的统计评估表明，其变化遵循与实验数据相同的泊松分布。确定了每个基础能谱中确保后续在生成统计稳健的合成数据时使用该基础能谱所需的最少统计量。还确定了合成能谱的模拟采集时间不超过基础能谱采集时间4%的要求。使用两种不同的放射性核素识别算法对RASE进行了进一步验证。
