用于放射治疗的丙氨酸-电子自旋共振剂量测定法。国际原子能机构的经验。
Alanine-ESR dosimetry for radiotherapy. IAEA experience.
作者信息
Mehta K, Girzikowsky R
机构信息
Dosimetry Section, RIHU International Atomic Energy Agency, Vienna, Austria.
出版信息
Appl Radiat Isot. 1996 Nov-Dec;47(11-12):1189-91. doi: 10.1016/s0969-8043(96)00164-9.
At present, the most commonly used transfer dosimeters for radiotherapy applications are TL dosimeters. They are being used for intercomparison between SSDLs (about 70) and the IAEA dosimetry laboratory. However, there are some undesirable characteristics of this dosimetry system. We have a study in progress at the IAEA to evaluate the alanine-ESR system as an alternative to TLDs. There are several desirable qualities which make alanine an attractive dosimeter. Preliminary data suggest that the alanine-ESR dosimetry system has the potential to replace TLDs for intercomparison amongst SSDLs in the therapy-level dose region.
目前，放射治疗应用中最常用的转移剂量计是热释光剂量计。它们被用于约70个二级标准剂量实验室（SSDLs）与国际原子能机构剂量测定实验室之间的比对。然而，这个剂量测定系统存在一些不良特性。国际原子能机构正在进行一项研究，以评估丙氨酸-电子自旋共振（ESR）系统作为热释光剂量计的替代方案。丙氨酸具有几个令人满意的特性，使其成为一种有吸引力的剂量计。初步数据表明，在治疗级剂量区域，丙氨酸-ESR剂量测定系统有潜力取代热释光剂量计用于SSDLs之间的比对。
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