Development of the microcalorimeter and anticoincidence detector for the Line Emission Mapper x-ray probe

IF 1.7 3区 工程技术 Q2 ENGINEERING, AEROSPACE
Stephen J. Smith, Joseph S. Adams, Simon R. Bandler, Rachel B. Borrelli, James A. Chervenak, Renata S. Cumbee, Enectali Figueroa-Feliciano, Fred M. Finkbeiner, Joshua Furhman, Samuel V. Hull, Richard L. Kelley, Caroline A. Kilbourne, Noah A. Kurinsky, Jennette N. Mateo, Asha Rani, Kazuhiro Sakai, Nicholas A. Wakeham, Edward J. Wassell, Sang H. Yoon
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引用次数: 1

Abstract

The Line Emission Mapper (LEM) is an x-ray probe mission concept that is designed to provide unprecedented insight into the physics of galaxy formation, including stellar and black-hole feedback and flows of baryonic matter into and out of galaxies. LEM incorporates a light-weight x-ray optic with a large-format microcalorimeter array. The LEM detector utilizes a 14k pixel array of transition-edge sensors (TESs) that will provide <2.5 eV spectral resolution over the energy range 0.2 to 2 keV, along with a field-of-view of 30 arcmin. The microcalorimeter array and readout builds upon the technology developed for the European Space Agency’s (ESA’s) Athena/x-ray Integral Field Unit. Here, we present a detailed overview of the baseline microcalorimeter design, its performance characteristics, including a detailed energy resolution budget and the expected count-rate capability. In addition, we outline the current status and plan for continued technology maturation. Behind the LEM array sits a high-efficiency TES-based anticoincidence (antico) detector that will reject cosmic-ray background events. We will briefly describe the design of the antico and plan for continued development.
线发射成像仪x射线探针微热计和反符合检测器的研制
线发射成像仪(LEM)是一个x射线探测任务概念,旨在为星系形成的物理学提供前所未有的见解,包括恒星和黑洞反馈以及进出星系的重子物质流。LEM集成了一个轻型x射线光学与一个大格式微热量计阵列。LEM探测器采用14k像素的过渡边缘传感器阵列(TESs),在0.2至2 keV的能量范围内提供<2.5 eV的光谱分辨率,以及30角分的视场。微热量计阵列和读数建立在为欧洲航天局(ESA)雅典娜/x射线积分场单元开发的技术基础上。在这里,我们详细介绍了基准微热量计设计,其性能特征,包括详细的能量分辨率预算和预期计数率能力。此外,我们概述了当前的状态和持续技术成熟的计划。在登月舱阵列的后面是一个高效率的基于tes的反巧合探测器,它将拒绝宇宙射线背景事件。我们将简要介绍antico的设计和继续发展的计划。
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来源期刊
CiteScore
4.40
自引率
13.00%
发文量
119
期刊介绍: The Journal of Astronomical Telescopes, Instruments, and Systems publishes peer-reviewed papers reporting on original research in the development, testing, and application of telescopes, instrumentation, techniques, and systems for ground- and space-based astronomy.
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