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تسجيل مستخدم جديداختبار الجودة وتحليل الفشل لمجموعات SiPM من أجهزة الأقمار GECAM
Quality assurance test and Failure Analysis of SiPM Arrays of GECAM Satellites
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ويتكون الأقمار الصغيرة الثنائية من مشغل GECAM الموجات الجاذبية الطاقة الكاملة للسماء الإشارات الكهرومغناطيسية (GECAM). كل حمولة GECAM تحتوي على 25 محسسات للأشعة كاما (GRD) و 8 محسسات للذرات المشحونة (CPD). GRD هو المحسس الرئيسي الذي يمكنه الكشف عن الأشعة كاما والذرات وتحديد مواقع الانفجارات الشعاعية الكاما (GRB) ، في حين أن CPD يستخدم لمساعدة GRD في التمييز بين الانفجارات الشعاعية الكاما والانفجارات الذرات المشحونة. GRD يستخدم كريستال البروميد اللانثاني (LaBr3) الذي يقرأ بواسطة SiPM. حيث أن جميع الأجهزة SiPM المتاحة ينتمي إلى الطبقة التجارية ، فإن الاختبارات للضمان الجودة يجب أن تتم بالتوافق مع مواصفات الفضاء. في هذا البحث ، نقدم نتائج الاختبارات للضمان الجودة ، وخاصة تحليل ميكانيكي مفصل للأجهزة الفاشلة أثناء تطوير GECAM. يقدم هذا البحث أيضًا ملخص تجربة تطبيق الأجهزة SiPM التجارية في الحمولات الفضائية ، ويوفر اقتراحات للتطبيقات الفضائية SiPM القادمة.
The Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) satellite consists of two small satellites. Each GECAM payload contains 25 gamma ray detectors (GRD) and 8 charged particle detectors (CPD). GRD is the main detector which can detect gamma-rays and particles and localize the Gamma-Ray Bursts (GRB),while CPD is used to help GRD to discriminate gamma-ray bursts and charged particle bursts. The GRD makes use of lanthanum bromide (LaBr3) crystal readout by SiPM. As the all available SiPM devices belong to commercial grade, quality assurance tests need to be performed in accordance with the aerospace specifications. In this paper, we present the results of quality assurance tests, especially a detailed mechanism analysis of failed devices during the development of GECAM. This paper also summarizes the application experience of commercial-grade SiPM devices in aerospace payloads, and provides suggestions for forthcoming SiPM space applications.
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