雷姆计在屏蔽墙内测量高能中子的修正因子

Rem-Meter Correction Factor for Measuring High Energy Neutrons Inside Shielding

在中能重离子反应中出射的Ｅｎ＞２０ＭｅＶ中子在出射总中子中占有相当大的比例，因此，当用雷姆计测量剂量当量时，由于仪器的能量响应，雷姆计的直接读数低于真实的中子剂量当量值，本文从重离子反应出射中子能谱入手，理论上计算了在屏蔽墙内用１０ｉｎ，直径单球雷姆计和标准Ａ－Ｂ雷姆计测量４１．７ＭｅＶ／ｕ１２Ｃ＋Ｆ３和１００ＭｅＶ／ｕ１２Ｃ＋Ｃ反应出射中子剂量当量的修正因子。它可以近似应用于中能重离子反应出射中子的剂量当量测量。

The dose equivalent of neutrons from intermediate energy heavy ion reactions measured with a rem-meter would be underestimated because of the energy response of the instrument. Therefore the readings of rem-meter must be corrected in order to obtain the real dose equivalent The correction factors for dose equivalent ofneutrons from the reactions of 41.7MeV/u 12C+ Fe and 100MeV /u 12C+ C measured inside . shielding with both rem-meters the 1 0 in. diameter single-sphere rem-meter and the standard A-B rem-meter have been calculated. They could be applied in dose equivalent measurement for intermediate energy heavy ion reactions.