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首页> 外文会议>Gamma-Ray Detector Physics and Applications >Tracking and imaging gamma-ray experiment (TIGRE) for 300-keV to 100-MeV gamma-ray astronomy
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Tracking and imaging gamma-ray experiment (TIGRE) for 300-keV to 100-MeV gamma-ray astronomy

机译：300keV至100MeV伽马射线天文学的跟踪和成像伽马射线实验（TIGRE）

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Abstract: The Tracking and Imaging Gamma-Ray Experiment (TIGRE) uses multilayers of silicon strip detectors both as a gamma-ray converter and to track Compton recoil electrons and positron-electron pairs. The silicon strip detectors also measure the energy losses of these particles. For Compton events, the direction and energy of the Compton scattered gamma ray are measured with arrays of small CsI(TI)-photodiode detectors so that an unique direction and energy can be found for each incident gamma ray. The incident photon direction for pair events is found from the initial pair particle directions. TIGRE is the first Compton telescope with a direct imaging capability. With a large $pi@-steradian field-of-view, it is sensitive to gamma rays from 0.3 to 100 MeV with a typical energy resolution of 3% (FWHM) and a 1-$sigma angular resolution of 40 arc-minutes at 2 MeV. A small balloon prototype instrument is being constructed that has a high absolute detection efficiency of 8% over the full energy range and a sensitivity of 10 milliCrabs for an exposure of 500,000 s. TIGRE's innovative design also uses the polarization dependence of the Klein-Nishina formula for gamma-ray source polarization measurements. The telescope will be described in detail and new results from measurements at 0.5 MeV and Monte Carlo calculations from 1 to 100 MeV will be presented. !6
机译：摘要：跟踪和成像伽马射线实验（TIGRE）使用多层硅带探测器作为伽马射线转换器，并跟踪康普顿反冲电子和正电子-电子对。硅条检测器还测量这些颗粒的能量损失。对于康普顿事件，使用小型CsI（TI）光电二极管检测器阵列测量康普顿散射伽马射线的方向和能量，以便可以为每个入射伽马射线找到唯一的方向和能量。配对事件的入射光子方向可以从初始的配对粒子方向中找到。 TIGRE是第一台具有直接成像功能的康普顿望远镜。它具有较大的$ pi @ -steradian视场，对0.3至100 MeV的伽马射线敏感，典型的能量分辨率为3％（FWHM），在1 -sigma时的角分辨率为40 arc-minute。 2 MeV。正在开发一种小型气球原型仪器，该仪器在整个能量范围内的绝对检测效率高达8％，对于500,000 s的照射灵敏度为10毫克拉。 TIGRE的创新设计还使用Klein-Nishina公式的偏振相关性来进行伽马射线源偏振测量。将详细描述该望远镜，并将介绍在0.5 MeV下的测量结果和从1至100 MeV的蒙特卡洛计算结果。 ！6

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