论文标题
使用单片Geiger APD阵列开发光子光子计数成像仪
Development of an optical photon-counting imager with a monolithic Geiger APD array
论文作者
论文摘要
我们已经开发了一个基于具有高正时分辨率的光子光子计算成像仪的传感器系统，旨在实现高度时间变化的天文现象。该检测器是在多像素光子计数器中自定义的单片Geiger模式雪崩光电二极管阵列，其响应时间在纳米秒的顺序上。本文评估了传感器的基本性能，并确认了增益线性，均匀性和低暗计数。我们使用开发的数据采集系统以100微秒的时间箱获得光曲线来证明该系统检测LED闪烁周期的能力。使用35厘米望远镜观察到螃蟹脉冲星，而无需冷却，并且设备检测到具有与无线电埃弗默斯数据一致的时期的光脉冲。尽管对于更可靠性，对系统的改进将是必要的，但是该系统已被证明是探索时间域光学天文学的有前途的设备。
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.
