Plastic scintillator investigations for relative dosimetry in proton-therapy
Plastic scintillator investigations for relative dosimetry in proton-therapy
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DOI：
10.1016/s0168-583x(00)00237-8
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发表时间：
2000-10-01
影响因子：
1.3
通讯作者：
Torrisi, L
中科院分区：
文献类型：
--
作者：
Torrisi, L
基于聚乙烯基甲苯的塑料有机衰减器可以以高灵敏度用于检测1-60 MeV的质子束。由于其水等效性、高的能量-光转换效率、小的尺寸和在低阻止本领下与吸收剂量的良好比例性，薄的辐射计可以作为相对剂量计应用于质子治疗领域。不幸的是，淬火效应限制了T形消能器在高阻止能力下的使用。此外，它们在放射治疗中使用的典型质子剂量下显示出可忽略的辐射损伤。已经获得了初步的结果，在空气中检测60兆电子伏治疗质子束在保罗谢勒研究所（PSI，维利根，苏黎世）和24兆电子伏质子束，在国家科学院德尔南（LNS，卡塔尼亚）。(C)2000 Elsevier Science B. V.保留所有权利。
Plastic organic scintillators, polyvinyltoluene based, can be used with high sensitivity to detect 1-60 MeV proton beams. Thin scintillators can be applied to proton-therapy field as relative dosimeter thanks to their water-equivalent nature, high energy-light conversion efficiency, low dimensions and good proportionality to the absorbed dose at low stopping powers. Unfortunately, the quenching effect limits the use of tee scintillators at high stopping powers. Moreover, they show a negligible radiation damage at the typical proton doses used in radiotherapy. Preliminary results have been obtained detecting in air both 60 MeV therapeutically proton beam at the Paul Scherrer Institute (PSI, Villigen-Zurich) and 24 MeV proton beam, at the Laboratorio Nazionale del Sud (LNS, Catania). (C) 2000 Elsevier Science B.V. All rights reserved.