标题： X-卡利布雷硬X射线偏振计的设计与测试 显示英文标题

标题： Design and tests of the hard X-ray polarimeter X-Calibur

摘要： X射线偏振测量有望为高能天体物理源提供定性上的新信息，例如双黑洞系统、微类星体、活动星系核和伽马射线暴。 我们设计、建造并测试了一种硬X射线偏振计X-Calibur，用于InFOCuS掠入射硬X射线望远镜的焦平面上。 X-Calibur结合了低Z的康普顿散射体与CZT探测器组件，利用偏振光子在电场方向垂直方向上优先康普顿散射的特性来测量10-80 keV X射线的偏振。 X-Calibur实现了数量级为1的高探测效率。 显示英文摘要

摘要： X-ray polarimetry promises to give qualitatively new information about high-energy astrophysical sources, such as binary black hole systems, micro-quasars, active galactic nuclei, and gamma-ray bursts. We designed, built and tested a hard X-ray polarimeter X-Calibur to be used in the focal plane of the InFOCuS grazing incidence hard X-ray telescope. X-Calibur combines a low-Z Compton scatterer with a CZT detector assembly to measure the polarization of 10-80 keV X-rays making use of the fact that polarized photons Compton scatter preferentially perpendicular to the electric field orientation. X-Calibur achieves a high detection efficiency of order unity.