Abstract For the accurate assessment of the heat generation rate in fast reactors, the gamma library of MC2-3 and the MC2-3 + GAMSOR procedure employing the coupled neutron and gamma heating calculation has been thoroughly verified against Monte Carlo results and validated using the ZPPR-15D gamma dose measurement data. NJOY outputs are post-processed in a consistent way with the NJOY procedure to avoid any missing data or double counting of data. Prompt heating for 379 out of 391 isotopes in the gamma library was verified against MCNP6.2 to within 1% relative error in total heating for most isotopes. For both a simple one-dimensional slab problem representing a sodium cooled fast reactor and the Experimental Breeder Reactor II (EBR-II) benchmark problem, the root-mean-square values of assembly power error were less than 0.5% for fuel assemblies, ~1% in blankets and ~1 to ~3% in reflectors compared to MCNP6.2 results. The most plausible cause for the 3% error in a reflector assembly is believed to be the error in the multigroup neutron cross sections for the reflector assembly. For validation, gamma doses measured with thermoluminiscent dosimeters (TLDs) in the ZPPR-15D experiment were calculated using GAMSOR. Due to the uncertainty in the TLD measurement with regards to the energy deposition of photons and neutrons, the validation data leads to a 12.7% uncertainty on the experimental measurement. With this uncertainty bound, the calculated doses all fell within one standard deviation of the measured value. Combined with the accurate calculation of reaction rate distributions and neutron spectrum measurements, these results indicate good agreement for the neutron and gamma heating calculations that were performed.

中文翻译：

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MC2-3伽马库的中子和伽马加热耦合计算验证验证试验

摘要 为了准确评估快堆发热率，MC2-3 的伽马库和采用耦合中子和伽马加热计算的 MC2-3 + GAMSOR 程序已经根据蒙特卡罗结果进行了彻底验证，并使用 ZPPR 进行了验证。 -15D 伽马剂量测量数据。NJOY 输出以与 NJOY 程序一致的方式进行后处理，以避免任何丢失的数据或数据的重复计算。γ 库中 391 种同位素中的 379 种的快速加热针对 MCNP6.2 进行了验证，大多数同位素的总加热相对误差在 1% 以内。对于代表钠冷快堆的简单一维板坯问题和实验增殖堆 II (EBR-II) 基准问题，燃料组件的组件功率误差的均方根值均小于 0.5%，与 MCNP6.2 结果相比，毯子约 1%，反射器约 1% 至约 3%。反射器组件中 3% 误差的最合理原因被认为是反射器组件的多群中子横截面中的错误。为了验证，在 ZPPR-15D 实验中使用热释光剂量计 (TLD) 测量的伽马剂量是使用 GAMSOR 计算的。由于 TLD 测量中关于光子和中子能量沉积的不确定性，验证数据导致实验测量的不确定性为 12.7%。有了这个不确定性界限，计算出的剂量都落在测量值的一个标准偏差内。结合反应速率分布的精确计算和中子谱测量，