Barium fluoride (BaF2) crystals are considered as a candidate scintillator for scintillation detectors in high-energy physics because of high radiation hardness and short decay time (< 1 ns) of the fast emission component. However, the high level of the slow emission component can deteriorate the detector time resolution. Special approaches are required to decrease this slow component. Using solar-blind photodetectors is one of the possible solutions. In this article, we describe a solar-blind photomultiplier with microchannel plates (MCP) that uses an aluminum gallium nitride (AlGaN) photocathode and a complete scintillation detector channel with a BaF2 crystal and the photomultiplier. The results of the cosmic-ray tests are presented that show the efficiency of detection of the BaF2 fast emission component and suppression of the slow one in the proposed scintillation detector.

中文翻译：

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用于粒子物理学中 BaF2 闪烁体探测器的带有 AlGaN 光电阴极和微通道板的光电倍增管

氟化钡 (BaF2) 晶体被认为是高能物理学中闪烁探测器的候选闪烁体，因为它具有高辐射硬度和快速发射成分的短衰减时间 (< 1 ns)。然而，高水平的慢发射分量会降低检测器的时间分辨率。需要特殊的方法来减少这个缓慢的部分。使用日盲光电探测器是可能的解决方案之一。在本文中，我们描述了一种带有微通道板 (MCP) 的日盲光电倍增管，它使用氮化铝镓 (AlGaN) 光电阴极和带有 BaF2 晶体和光电倍增管的完整闪烁探测器通道。