公开(公告)号：EP3226035A1

公开(公告)日：2017-10-04

申请号：EP15862537.6

申请日：2015-06-01

申请人： Institute Of Nuclear Physics And Chemistry, China Academy of Engineering Physics

发明人： MAO, Benjiang ,  LIU, Yixin ,  XU, Yang ,  HE, Meng ,  ZHUO, Renhong ,  WEN, Dezhi ,  DING, Dajie ,  CHENG, Jing ,  ZHENG, Hui

IPC分类号： G01T1/02

CPC分类号： G01T1/02 ,  G01N23/20 ,  G01N2223/05 ,  G01N2223/638 ,  G01T7/005

摘要： The invention relates to the field of verification or calibration of radiation protection. The invention solves the problem that the on-site and in-situ verification or calibration is relatively difficult as the existing standard reference radiation field is large in spatial volume and is unable or difficult to be moved, and provides an air kerma conventional true value measuring method. The technical solution of the method can be summarized as: constructing a small-scale reference radiation field, then selecting a proper radiation source and source strength for providing incident rays for a shielding box, subsequently selecting a plurality of gamma ray dose measurement instruments as experiment samples for establishing a prediction model to obtain the prediction model of the air kerma conventional true value of a check point, finally putting a probe of an instrument to be detected at the check point, recording scattering gamma spectra measured by a gamma spectrometer, and introducing the scattering gamma spectra into the prediction model to obtain the air kerma conventional true value. The method has the beneficial effects that the result is accurate, the reference radiation field used is small in size, and is applicable to the measurement of the air kerma conventional true value.

摘要翻译： 本发明涉及辐射防护的验证或校准领域。 本发明解决了现有标准参考辐射场空间体积大，不能或难以移动的现场标定参考辐射场相对困难的问题，提供了空气比马尔传统真值测量 方法。 该方法的技术方案可以概括为：构建小尺度参考辐射场，然后选择合适的辐射源和源强度为屏蔽箱提供入射光线，随后选择多个伽马射线剂量测量仪器作为实验 用于建立预测模型的样本以获得检验点的空气比马力常规真实值的预测模型，最后在检查点放置要检测的仪器的探针，记录由伽马光谱仪测量的散射伽马谱，并且引入 将散射伽马谱导入预测模型中以获得空气比马尔传统真值。 该方法具有效果准确，使用的参考辐射场尺寸小，适用于空气比释动量常规真值测量的有益效果。