Development of an optical photon-counting imager with a monolithic Geiger Avalanche Photodiode array
Development of an optical photon-counting imager with a monolithic Geiger Avalanche Photodiode array
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DOI：
10.1093/pasj/psaa106
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发表时间：
2020-10
期刊：
影响因子：
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通讯作者：
T. Nakamori;Yuga Ouchi;Risa Ogihara;T. Terasawa;Yuhei Kato;S. Shibata
中科院分区：
文献类型：
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作者：
T. Nakamori;Yuga Ouchi;Risa Ogihara;T. Terasawa;Yuhei Kato;S. Shibata
我们已经开发了一个传感器系统的基础上，具有高定时分辨率的光学光子计数成像仪，针对高度时变的天文现象。该检测器是一个单片盖革模式雪崩光电二极管阵列定制的多像素光子计数器的响应时间为纳秒的顺序。本文评估了传感器的基本性能，并确认了增益线性度，均匀性和低暗计数。我们证明了该系统的能力，以检测闪烁的LED的周期，使用开发的数据采集系统，以获得光变曲线的时间仓为100微秒。蟹状星云脉冲星是用一台35厘米望远镜在没有冷却的情况下观测的，该设备探测到的光脉冲周期与无线电星历中的数据一致。虽然为了提高系统的可靠性，还需要对系统进行改进，但该系统已被证明是一种很有前途的时域光学天文学探索装置。
We have developed a sensor system based on an optical photon-counting imager with high timing resolution, aiming for highly time-variable astronomical phenomena. The detector is a monolithic Geiger-mode avalanche photodiode array customized in a Multi-Pixel Photon Counter with a response time on the order of nanoseconds. This paper evaluates the basic performance of the sensor and confirms the gain linearity, uniformity, and low dark count. We demonstrate the system's ability to detect the period of a flashing LED, using a data acquisition system developed to obtain the light curve with a time bin of 100 microseconds. The Crab pulsar was observed using a 35-cm telescope without cooling, and the equipment detected optical pulses with a period consistent with the data from the radio ephemeris. Although improvements to the system will be necessary for more reliability, the system has been proven to be a promising device for exploring the time-domain optical astronomy.