Zeitlin C J, Frankel K A, Gong W, Heilbronn L, Lampo E J, Leres R, Miller J, Schimmerling W
Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA.
Radiat Meas. 1994;23(1):65-81. doi: 10.1016/1350-4487(94)90025-6.
A multi-element solid state detector has been designed to measure fluences of fragments produced near the beam axis by high energy heavy ion beams in thick targets. The detector is compact and modular, so as to be readily reconfigured according to the range of fragment charges and energies to be measured. Preamplifier gain settings and detector calibrations are adjustable remotely under computer control. We describe the central detector, its associated detectors and electronics, triggering scheme, data acquisition and particle identification techniques, illustrated by data taken with 600 MeV/u 56Fe beams and thick polyethylene targets at the LBL Bevalac. The applications of this work to space radiation protection are discussed.
已设计出一种多元素固态探测器，用于测量高能重离子束在厚靶中靠近束轴处产生的碎片注量。该探测器结构紧凑且为模块化，以便能根据待测量的碎片电荷和能量范围轻松重新配置。前置放大器增益设置和探测器校准可在计算机控制下远程调节。我们描述了中央探测器、其相关探测器及电子设备、触发方案、数据采集和粒子识别技术，并展示了在劳伦斯伯克利国家实验室（LBL）的贝伐粒子加速器（Bevalac）使用600 MeV/u的56Fe束和厚聚乙烯靶所获取的数据。讨论了这项工作在空间辐射防护方面的应用。
