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本文论述了比释动能概念 K 的缺点,并对概念 K’进行了分析,K’定义为 dE_(en)除以 dm 而得的商,这里 dE_(en)是在质量为 dm 的物质中由不带电的电离粒子释放出来的全部带电粒子的初始动能的总和减去该带电粒子在相同的物质里在轫致辐射等过程中辐射出的能量,即K’=dF_(cn)/dm。对 K 及 K’进行比较表明:(1)K’与吸收剂量 D 或照射量 X 的关系比 K 与它们的关系简捷。(2)K’比 K 容易通过实验测定。(8)X 是 K’的一个特例。如果采用 K’,则 K’将取代 K 和 X,从而使辐射剂量学中的三个重要辐射量 D、K、X 减为两个辐射量 D、K’。
This paper discusses the shortcomings of the concept k of kinetic energy and analyzes the concept K ’, where K’ is defined as the quotient of dE_en divided by dm, where dE_en is defined by the mass of dm The sum of the initial kinetic energies of all charged particles released by uncharged ionized particles minus the energy radiated by the charged particles in the same material, such as induced radiation, is K ’= dF cn / dm. A comparison of K and K ’shows that: (1) the relation of K’ to absorbed dose D or exposure X is simpler than that of K. (2) K ’is easier to experimentally determined than K. (8) X is a special case of K ’. If K ’is used, K’ will replace K and X so that the three important doses of radiation D, K, X in radiation dosimetry are reduced to two doses of radiation D, K ’.