Chumak V, Ciesielski B, Sholom S, Schultka K
Scientific Center of Radiation Medicine, 04050, Melnikova Street 53, Kiev, Ukraine.
Radiat Prot Dosimetry. 2006;120(1-4):197-201. doi: 10.1093/rpd/nci644. Epub 2006 Jun 9.
Despite the considerable improvement in accuracy in comparison with previous intercomparison programmes, the outcome of the recent 3rd International Intercomparison on EPR Tooth Dosimetry has demonstrated that performance of various protocols practised in different laboratories significantly varies. SCRM and MUG took part in this intercomparison with their own versions of EPR dosimetry protocols, demonstrating the good correlation between reconstructed and nominal doses (best result for SCRM and fourth best for MUG) and the lowest both absolute and relative mean deviations from the nominal doses. Although the general results of the 3rd Intercomparison are being discussed elsewhere in this issue by Wieser et al., this presentation is focused on the discussion of the common features of the two techniques, which may have an effect on good performance in dose reconstruction. In addition to the mthods of analysis of the intercomparison results, as used in Wieser et al., SCRM and MUG studied the influence of an additional factor--the selection of the standard of the native signal--on the quality of the dose reconstruction.
尽管与之前的比对项目相比，准确性有了显著提高，但最近第三次电子顺磁共振牙齿剂量测定国际比对的结果表明，不同实验室采用的各种方案的性能存在显著差异。SCRM和MUG以各自版本的电子顺磁共振剂量测定方案参与了此次比对，结果表明重建剂量与标称剂量之间具有良好的相关性（SCRM的结果最佳，MUG的结果排第四），并且与标称剂量相比，绝对平均偏差和相对平均偏差均为最低。尽管本期其他地方Wieser等人正在讨论第三次比对的总体结果，但本报告重点讨论这两种技术的共同特征，这些特征可能对剂量重建的良好性能产生影响。除了Wieser等人使用的比对结果分析方法外，SCRM和MUG还研究了另一个因素——天然信号标准的选择——对剂量重建质量的影响。
