Gambarini G, Magni D, Regazzoni V, Borroni M, Carrara M, Pignoli E, Burian J, Marek M, Klupak V, Viererbl L
Physics Department, Università degli Studi di Milano, via Celoria 16, Milano 20133, Italy INFN, Section of Milan, via Celoria 16, Milano 20133, Italy
Physics Department, Università degli Studi di Milano, via Celoria 16, Milano 20133, Italy.
Radiat Prot Dosimetry. 2014 Oct;161(1-4):422-7. doi: 10.1093/rpd/nct363. Epub 2014 Jan 16.
Gamma dose and thermal neutron fluence in a phantom exposed to an epithermal neutron beam for boron neutron capture therapy (BNCT) can be measured by means of a single thermoluminescence dosemeter (TLD-700). The method exploits the shape of the glow curve (GC) and requires the gamma-calibration GC (to obtain gamma dose) and the thermal-neutron-calibration GC (to obtain neutron fluence). The method is applicable for BNCT dosimetry in case of epithermal neutron beams from a reactor because, in most irradiation configurations, thermal neutrons give a not negligible contribution to the TLD-700 GC. The thermal neutron calibration is not simple, because of the impossibility of having thermal neutron fields without gamma contamination, but a calibration method is here proposed, strictly bound to the method itself of dose separation.
对于硼中子俘获疗法（BNCT）中暴露于超热中子束的体模，伽马剂量和热中子注量可通过单个热释光剂量计（TLD - 700）进行测量。该方法利用了发光曲线（GC）的形状，并且需要伽马校准发光曲线（以获得伽马剂量）和热中子校准发光曲线（以获得中子注量）。该方法适用于反应堆产生的超热中子束的BNCT剂量测定，因为在大多数辐照配置中，热中子对TLD - 700发光曲线的贡献不可忽略。热中子校准并不简单，因为不可能获得无伽马污染的热中子场，但本文提出了一种校准方法，它与剂量分离方法本身紧密相关。
