Manabe K, Endo A, Eckerman K F
Japan Atomic Energy Agency, 2-4 Shirakata-Shirane, Tokai-mura, Naka-gun, Ibaraki-ken 319-1195, Japan.
Radiat Prot Dosimetry. 2010 Mar;138(3):245-50. doi: 10.1093/rpd/ncp259. Epub 2009 Nov 13.
The impact a revision of nuclear decay data had on dose coefficients was studied using data newly published in ICRP Publication 107 (ICRP 107) and existing data from ICRP Publication 38 (ICRP 38). Committed effective dose coefficients for occupational inhalation of radionuclides were calculated using two sets of decay data with the dose and risk calculation software DCAL for 90 elements, 774 nuclides and 1572 cases. The dose coefficients based on ICRP 107 increased by over 10 % compared with those based on ICRP 38 in 98 cases, and decreased by over 10 % in 54 cases. It was found that the differences in dose coefficients mainly originated from changes in the radiation energy emitted per nuclear transformation. In addition, revisions of the half-lives, radiation types and decay modes also resulted in changes in the dose coefficients.
利用国际放射防护委员会第107号出版物（ICRP 107）新公布的数据以及国际放射防护委员会第38号出版物（ICRP 38）的现有数据，研究了核衰变数据修订对剂量系数的影响。使用剂量和风险计算软件DCAL，针对90种元素、774种核素和1572种情况，利用两组衰变数据计算了职业吸入放射性核素的待积有效剂量系数。与基于ICRP 38的剂量系数相比，基于ICRP 107的剂量系数在98种情况下增加了10%以上，在54种情况下减少了10%以上。研究发现，剂量系数的差异主要源于每次核转变发射的辐射能量的变化。此外，半衰期、辐射类型和衰变模式的修订也导致了剂量系数的变化。
