论文标题
sensl sipms的辐射损伤评估
Radiation damage assessment of SensL SiPMs
论文作者
论文摘要
硅光电塑料（SIPMS）正在迅速替换传统的光电层管（PMTS），作为空间中伽马射线闪烁检测器的首选读数。尽管它们提供大量，重量和节能，但它们已证明容易受到辐射损伤。具有不同细胞大小的SensL饮食用64个MEV质子和8 MEV电子辐照。通常，结果表明，较大的细胞尺寸更容易受到辐射损伤，最大的50 um饮食显示出电流的最大增加，这是剂量的函数。观察到质子降低剂量的电流增加，质子为〜2 rad（si），电子的剂量为〜2 rad（si）。美国海军研究实验室（NRL）碘化畸形辐射仪（SIRI-1）的偏置2x2 Sensl J系列60035 SIPM的偏置电流增加了528 UA，其在Sun-Synchonchronous Orbit的一年中的任务比其为期一年。这里的工作着重于随着辐射损害的增加观察到的散装电流的增加，并进行了更好地量化这种效果，这是剂量的函数，以供将来的任务。其中包括未来的NRL Mission Siri-2，即Siri-1，Glowbug和Gagg辐射仪器（GARI）。
Silicon Photomultipliers (SiPMs) are quickly replacing traditional photomultiplier tubes (PMTs) as the readout of choice for gamma-ray scintillation detectors in space. While they offer substantial size, weight and power saving, they have shown to be susceptible to radiation damage. SensL SiPMs with different cell sizes were irradiated with 64 MeV protons and 8 MeV electrons. In general, results show larger cell sizes are more susceptible to radiation damage with the largest 50 um SiPMs showing the greatest increase in current as a function of dose. Current increases were observed for doses as low at ~2 rad(Si) for protons and ~20 rad(Si) for electrons. The U.S. Naval Research Laboratory's (NRL) Strontium Iodide Radiation Instrument (SIRI-1) experienced a 528 uA increase in the bias current of the on-board 2x2 SensL J-series 60035 SiPM over its one-year mission in sun-synchronous orbit. The work here focuses on the increase in bulk current observed with increasing radiation damage and was performed to better quantify this effect as a function of dose for future mission. These include the future NRL mission SIRI-2, the follow on to SIRI-1, Glowbug and the GAGG Radiation Instrument (GARI).
