激光聚变实验高能中子环境下电荷注入器件的性能

Charge-injection-device performance in the high-energy-neutron environment of laser-fusion experiments.

作者信息

Marshall F J, DeHaas T, Glebov V Yu

机构信息

Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA.

出版信息

Rev Sci Instrum. 2010 Oct;81(10):10E503. doi: 10.1063/1.3471960.

DOI:10.1063/1.3471960

PMID:21034031

Abstract

Charge-injection devices (CIDs) are being used to image x rays in laser-fusion experiments on the University of Rochester's OMEGA Laser System. The CID cameras are routinely used up to the maximum neutron yields generated (∼10(14) DT). The detectors are deployed in x-ray pinhole cameras and Kirkpatrick-Baez microscopes. The neutron fluences ranged from ∼10(7) to ∼10(9) neutrons/cm(2) and useful x-ray images were obtained even at the highest fluences. It is intended to use CID cameras at the National Ignition Facility (NIF) as a supporting means of recording x-ray images. The results of this work predict that x-ray images should be obtainable on the NIF at yields up to ∼10(15), depending on distance and shielding.

摘要

电荷注入器件（CID）正被用于罗切斯特大学欧米茄激光系统的激光聚变实验中对X射线进行成像。CID相机通常在产生的最大中子产额（约10¹⁴ DT）下使用。这些探测器被部署在X射线针孔相机和柯克帕特里克-贝兹显微镜中。中子注量范围从约10⁷到约10⁹ 中子/厘米²，即使在最高注量下也能获得有用的X射线图像。计划在国家点火装置（NIF）中使用CID相机作为记录X射线图像的辅助手段。这项工作的结果预测，根据距离和屏蔽情况，在NIF上产额高达约10¹⁵时应该能够获得X射线图像。