• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy IV >Laboratory performance of the proportional counter array experiment for the X-ray Timing Explorer
【24h】

Laboratory performance of the proportional counter array experiment for the X-ray Timing Explorer

机译：X射线计时资源管理器的比例计数器阵列实验的实验室性能

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Abstract: In this paper we briefly describe the design and initial laboratory performance of the Proportional Counter Array (PCA) for the X-ray Timing Explorer (XTE). The PCA consists of 5 identical, sealed and collimated (1$DGR FWHM), xenon/methane multi-anode proportional counters sensitive to x-rays with energies between 2 and 60 keV. Each detector has an effective area of approximately 1,500 cm$+2$/. The data system can tag the relative time of arrival of each event with an accuracy of 1 $mu@s. The overall absolute time accuracy will be maintained by the spacecraft to better than 1 ms. Following the design principles of the HEAO-1 A2 HED detectors, the PCA adopts the interleaved anode connection scheme with an active propane anti- coincidence layer in the front and a similar anti-coincidence xe/methane layer on three other sides of the detector. The interleaved anode connection scheme and the anti-coincidence layers reject background events caused by charged particles with high efficiency, thus significantly reducing the background event rate at lower energies. As of June, 1993, the fabrication and assembly of all the five detectors had been completed. Their performance evaluation and characterization are currently under way. XTE is scheduled to be launched with a Delta-II rocket in the summer of 1995.!3
机译：摘要：在本文中，我们简要描述了X射线定时资源管理器（XTE）的比例计数器阵列（PCA）的设计和初始实验室性能。 PCA由5个相同，密封和准直（1 $ DGR FWHM）的氙/甲烷多阳极比例计数器组成，这些计数器对能量在2到60 keV之间的X射线敏感。每个探测器的有效面积约为1,500 cm + 2 $ /。数据系统可以标记每个事件的相对到达时间，精度为1 $ mu @ s。航天器将使整体绝对时间精度保持在1毫秒以上。遵循HEAO-1 A2 HED检测器的设计原理，PCA采用交错式阳极连接方案，在检测器的前部有一个主动丙烷防重合层，在检测器的其他三侧有一个类似的防重合xe /甲烷层。交错的阳极连接方案和防碰巧层可以高效地拒绝由带电粒子引起的背景事件，从而显着降低了较低能量下的背景事件发生率。截至1993年6月，所有五个探测器的制造和组装已完成。他们的性能评估和表征目前正在进行中。 XTE计划在1995年夏天用Delta-II火箭发射！3

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号