首页> 外文期刊>Physics of atomic nuclei >The Anticoincidence System of Space-Based Gamma-Ray Telescope GAMMA-400, Test Beam Studies of Anticoincidence Detector Prototype with SiPM Readout
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The Anticoincidence System of Space-Based Gamma-Ray Telescope GAMMA-400, Test Beam Studies of Anticoincidence Detector Prototype with SiPM Readout

机译:基于空间的伽马射线望远镜Gamma-400的抗煎体系,用SIPM读数测试抗煎探测器原型的测试光束研究

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摘要

The GAMMA-400 gamma-ray telescope is planned for the launch at the end of 2026 on the Navigator service platform designed by Lavochkin Association on an elliptical orbit with following initial parameters: an apogee similar to 300 000, a perigee similar to 500 km, a rotation period similar to 7 days and inclination of 51.4 degrees. The apparatus is expected to operate for more than 5 years, reaching an unprecedented sensitivity for the search of dark matter signatures and the study of the unresolved and so far unidentified gamma-ray sources. The segmented anticoincidence counters surround the converter-tracker and calorimeter of the telescope with the purpose of vetoing to assure a clean track reconstruction and charged particle background suppression. The anticoincidence detector prototype based on long BC-408 scintillator with silicon photomultipliers readout was tested using 300-MeV positron beam of synchrotron C-25P "PAKHRA" of Lebedev Physical Institute. The measurement setup, design concepts for the prototype detector together with test results are discussed.
机译:伽玛-400伽马射线望远镜计划于2026年底,在Lavochkin协会在椭圆轨道上设计的导航轨道服务平台,其中包含以下初始参数:类似于300 000的Apogee,一个类似于500公里的杠杆,旋转周期类似于7天和51.4度的倾斜度。该装置预计将运行超过5年,从而达到前所未有的敏感性,用于搜索暗物质签名和未解决的且迄今为止未识别的伽马射源的研究。分段的抗渗透计数器围绕着望远镜的转换器 - 跟踪器和热量表,目的是否则确保干净的轨道重建和带电粒子背景抑制。使用300 MeV正电子研究所的Synchrotron C-25P“Pakhra”的300 MeV正电子束测试了基于Long BC-408闪烁体的基于Long BC-408闪烁体的抗渗透探测器原型。讨论了测量设置,对原型检测器的设计概念以及测试结果一起进行。

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