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BIORT: An experiment for the assessment of the biological effects of very high dose rate and dose per pulse electron irradiations

机译:BIORT:评估极高剂量率和每脉冲电子辐射剂量的生物学效应的实验

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摘要

Intra Operative Radiation Therapy (IORT) is a treatment modality combining surgery and radiation therapy in which a large single dose of radiation is delivered at the time of an operation for tumour resection During last years, IORT has become a widespread technique in clinical routine. This was possible thanks to the recent development of small dedicated electron accelerators which overcome all the disadvantages concerning both organizational and radiation protection issues related to the use of conventional Linacs during a surgical operation. However the very high dose per pulse and dose rates delivered by the this new modality {i.e. respectively about 100 and 20 times greater than that of a conventional radiation therapy) open new problems related to dosirnetry and radiobiology For these very reasons we proposed the experiment "radioBiology of IORT" (BIORT) to INFN, aiming at determining biological effectiveness of the very peculiar IORT beams (electrons delivered at very high dose rate, high dose per pulse and a total dose delivered in a single fraction).
机译:手术中放射治疗(IORT)是一种结合了外科手术和放射疗法的治疗方式,其中在进行肿瘤切除手术时会提供大量的单剂量放射。近年来,IORT已成为临床常规技术中的一项广泛技术。这是有可能的,这要归功于小型专用电子加速器的最新开发,该电子加速器克服了与外科手术期间使用常规直线加速器有关的组织和辐射防护问题的所有缺点。然而,这种新的方式(例如,分别比传统放射疗法大了约100倍和20倍)带来了与剂量学和放射生物学有关的新问题。由于这些原因,我们针对INFN提出了“ IORT放射生物学”(BIORT)实验,旨在确定放射线生物学的有效性。独特的IORT光束(电子以非常高的剂量率,每脉冲高剂量以及总剂量以单个分数传输)。

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