成像板探测器对5 - 18兆电子伏特电子的灵敏度研究。

Study of imaging plate detector sensitivity to 5-18 MeV electrons.

作者信息

Boutoux G, Rabhi N, Batani D, Binet A, Ducret J-E, Jakubowska K, Nègre J-P, Reverdin C, Thfoin I

机构信息

Univ. de Bordeaux, CNRS, CEA, CELIA (Centre Lasers Intenses et Applications), UMR 5107, F-33405 Talence, France.

CEA DAM DIF, F-91297 Arpajon, France.

出版信息

Rev Sci Instrum. 2015 Nov;86(11):113304. doi: 10.1063/1.4936141.

DOI:10.1063/1.4936141

PMID:26628126

Abstract

Imaging plates (IPs) are commonly used as passive detectors in laser-plasma experiments. We calibrated at the ELSA electron beam facility (CEA DIF) the five different available types of IPs (namely, MS-SR-TR-MP-ND) to electrons from 5 to 18 MeV. In the context of diagnostic development for the PETawatt Aquitaine Laser (PETAL), we investigated the use of stacks of IP in order to increase the detection efficiency and get detection response independent from the neighboring materials such as X-ray shielding and detector supports. We also measured fading functions in the time range from a few minutes up to a few days. Finally, our results are systematically compared to GEANT4 simulations in order to provide a complete study of the IP response to electrons over the energy range relevant for PETAL experiments.

摘要

成像板（IP）在激光等离子体实验中通常用作无源探测器。我们在ELSA电子束设施（法国原子能委员会DIF）对五种不同类型的可用IP（即MS - SR - TR - MP - ND）进行了5至18 MeV电子的校准。在阿基坦拍瓦激光装置（PETAL）的诊断开发背景下，我们研究了使用IP堆叠以提高探测效率，并获得与相邻材料（如X射线屏蔽和探测器支架）无关的探测响应。我们还测量了从几分钟到几天时间范围内的衰减函数。最后，我们将结果与GEANT4模拟进行系统比较，以便对IP在PETAL实验相关能量范围内对电子的响应进行全面研究。