Intercomparison of active personal dosemeters in interventional radiology.
Intercomparison of active personal dosemeters in interventional radiology.
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介入放射学中主动个人剂量计的相互比较。
DOI：
10.1093/rpd/ncn083
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发表时间：
2008
影响因子：
1
通讯作者：
F. d'Errico
中科院分区：
文献类型：
--
作者：
I. Clairand;L. Struelens;J. Bordy;J. Daures;J. Debroas;M. Denozières;L. Donadille;J. Gouriou;C. Itié;P. Vaz;F. d'Errico
CONRAD 项目的第 9 工作组（医务人员辐射防护剂量测定）对主动个人剂量计 (APD) 在介入放射学中的使用进行了评估，该项目是欧盟委员会在其第六个框架计划中支持的一项协调行动。介入放射学程序可能非常复杂，并且可能会导致靠近主辐射场且大部分暴露于患者散射辐射的人员受到相对较高的剂量。为了对散射光子进行充分的剂量测定，APD 必须能够响应低能量 [10-100 keV] 和具有相对较高瞬时剂量率的脉冲辐射。 2007 年 3 月组织了五种被认为适合介入放射学应用的 APD 模型的比对。比对分别在 CEA-LIST（法国萨克雷）和 IRSN（法国丰特奈-罗斯-罗斯）使用脉冲和连续辐射束。考虑了接近临床实践的特定配置。以 Hp(10) 表示的参考剂量源自空气比释动测量以及测量和计算的散射辐射场的能量分布。进行额外的蒙特卡罗计算以研究不同实验条件下的能谱对比。这项相互比较的结果在本工作中得到展示，并表明哪些 APD 在介入放射学中遇到的脉冲 X 射线的特定低能谱和剂量率中使用时能够提供正确的响应。
The use of active personal dosemeters (APD) in interventional radiology was evaluated by Working Group 9 (Radiation protection dosimetry of medical staff) of the CONRAD project, which is a Coordination Action supported by the European Commission within its sixth Framework Programme. Interventional radiology procedures can be very complex and they can lead to relatively high doses to personnel who stand close to the primary radiation field and are mostly exposed to radiation scattered by the patient. For the adequate dosimetry of the scattered photons, APDs must be able to respond to low-energy [10-100 keV] and pulsed radiation with relatively high instantaneous dose rates. An intercomparison of five APD models deemed suitable for application in interventional radiology was organised in March 2007. The intercomparison used pulsed and continuous radiation beams, at CEA-LIST (Saclay, France) and IRSN (Fontenay-aux-Roses, France), respectively. A specific configuration, close to the clinical practice, was considered. The reference dose, in terms of Hp(10), was derived from air kerma measurements and from the measured and calculated energy distributions of the scattered radiation field. Additional Monte Carlo calculations were performed to investigate the energy spectra for different experimental conditions of the intercomparison. The results of this intercomparison are presented in this work and indicate which APDs are able to provide a correct response when used in the specific low-energy spectra and dose rates of pulsed X-rays encountered in interventional radiology.