Hartmann G H, Jäkel O, Heeg P, Karger C P, Kriessbach A
Department of Medical Physics, German Cancer Research Centre, Heidelberg.
Phys Med Biol. 1999 May;44(5):1193-206. doi: 10.1088/0031-9155/44/5/008.
The method to measure absorbed dose to water in a field of carbon ions as applied for the heavy ion therapy project at the Heavy Ion Research Laboratory in Darmstadt (GSI), Germany, is described in detail. Thimble ionization chambers with a water absorbed calibration factor are applied. The dose obtained with this method was compared with that obtained at the heavy ion therapy facility HIMAC at the National Institute of Radiological Sciences in Chiba, Japan, using the Japanese code of practice. The agreement found was better than 1%. The combined uncertainty of the determination of absorbed dose to water was estimated to amount to 5%.
详细描述了德国达姆施塔特重离子研究实验室（GSI）重离子治疗项目中用于测量碳离子束中水吸收剂量的方法。采用具有水吸收校准因子的指形电离室。将用该方法获得的剂量与日本千叶国立放射科学研究所重离子治疗设施HIMAC使用日本实践规范获得的剂量进行了比较。发现两者的一致性优于1%。水吸收剂量测定的合成不确定度估计为5%。
