In-orbit performance of avalanche photodiode as radiation detector onboard a pico-satellite Cute-1.7+APD II
In-orbit performance of avalanche photodiode as radiation detector onboard a pico-satellite Cute-1.7+APD II
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DOI：
10.1117/12.855954
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发表时间：
2010-07
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通讯作者：
T. Toizumi;Y. Yatsu;T. Nakamori;J. Kataoka;Y. Tsubuku;Y. Kuramoto;T. Enomoto;R. Usui;N. Kawai;K. Akiyama;S. Inagawa;H. Ashida;K. Omagari;N. Miyashita;S. Matsunaga;Y. Ishikawa;Y. Matsunaga;N. Kawabata
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作者：
T. Toizumi;Y. Yatsu;T. Nakamori;J. Kataoka;Y. Tsubuku;Y. Kuramoto;T. Enomoto;R. Usui;N. Kawai;K. Akiyama;S. Inagawa;H. Ashida;K. Omagari;N. Miyashita;S. Matsunaga;Y. Ishikawa;Y. Matsunaga;N. Kawabata
Cute-1.7+APD II是东京工业大学学生开发的第三颗皮卫星。该使命的主要目标之一是首次在空间实验中验证雪崩光电二极管（APD）作为辐射探测器的使用。该卫星于2008年4月由ISRO PSLV-C9火箭成功发射，并已运行了20多个月。Cute-1.7+APD II携带两个反向APD，用于监测低至9.2 keV的低能粒子在低地球轨道（LEO）中的分布，包括南大西洋异常（SAA）以及极光带。本文介绍了APD的设计参数和发射前的各种飞行试验，特别是Cute-1.7+APD II使命的高计数响应和主动增益控制系统。将提供在连续12小时观测中获得的电子/质子分布的实例，以证明APD在轨道上的初始飞行性能。
Cute-1.7+APD II is the third pico-satellite developed by students at the Tokyo Institute of Technology. One of the primary goals of the mission is to validate the use of avalanche photodiodes (APDs) as a radiation detector for the first time in a space experiment. The satellite was successfully launched by an ISRO PSLV-C9 rocket in Apr 2008 and has since been in operation for more than 20 months. Cute-1.7+APD II carries two reversetype APDs to monitor the distribution of low energy particles down to 9.2 keV trapped in a Low Earth Orbit (LEO), including South Atlantic Anomaly (SAA) as well as aurora bands. We present the design parameters and various preflight tests of the APDs prior to launch, particularly, the high counting response and active gain control system for the Cute-1.7+APD II mission. Examples of electron/proton distribution, obtained in continuous 12-hour observations, will be presented to demonstrate the initial flight performance of the APDs in orbit.