Response of a Li-glass/multi-anode photomultiplier detector to focused proton and deuteron beams
E. Rofors, J. Pallon, R. Al Jebali, J. R. M. Annand, L. Boyd, M. J. Christensen, U. Clemens, S. Desert, M. Elfman, R. Engels, K. G. Fissum, H. Frielinghaus, R. … 展开作者
E. Rofors, J. Pallon, R. Al Jebali, J. R. M. Annand, L. Boyd, M. J. Christensen, U. Clemens, S. Desert, M. Elfman, R. Engels, K. G. Fissum, H. Frielinghaus, R. Frost, S. Gardner, C. Gheorghe, R. Hall-Wilton, S. Jaksch, K. Kanaki, G. Kemmerling, P. Kristiansson, K. Livingston, V. Maulerova, N. Mauritzson, R. Montgomery, H. Perrey, T. Richter, J. Scherzinger, B. Seitz, M. Shetty
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22 pages, 8 figures, to be submitted to Nucl. Instr. and Meth. in Phys. Res. A
The response of a position-sensitive Li-glass based scintillation detector to focused beams of 2.5 MeV protons and deuterons has been investigated. The beams were scanned across the detector in 0.5 mm horizontal and vertical steps perpendicular to the beams. Scintillation light was registered using an 8 by 8 pixel multi-anode photomultiplier tube. The signal amplitudes were recorded for each pixel on an event-by-event basis. Several pixels generally registered considerable signals at each beam location. The number of pixels above set thresholds were investigated, with the optimization of the single-hit efficiency over the largest possible area as the goal. For both beams, at a threshold of ~50% of the mean of the full-deposition peak, ~80% of the events were registered in a single pixel, resulting in an effective position resolution of ~5 mm in X and Y.
Response of a Li-glass/multi-anode photomultiplier detector to $α$-particles from $^{241}$Am
测量了位置敏感锂玻璃闪烁体探测器对来自准直$^{241}$ Am源的$α$粒子的响应。闪烁光由8 X 8像素多阳极光电倍增管读出，并且对于扫描上的每个位置记录每个像素的信号幅度。像素信号强烈地依赖于位置，并且通常几个像素将记录高于给定阈值的信号（命中）。研究了该阈值对命中多重性的影响，以优化检测器的单次命中效率。
Characterisation and calibration of a scintillating fibre detector with > 4000 multi-anode photomultiplier channels
在美因茨的Kaos光谱仪中，运行着一个高分辨率的高能粒子坐标探测器。它由直径为4000个< 1mm and is read out by >多阳极光电倍增管通道的增强纤维组成。它是世界上最先进的磁谱仪焦平面探测器之一。为了校正由不同的增益和不同的光学透射率引起的检测效率的变化，已经开发了全自动离线校准程序。该过程包括将放射性同位素源定位在探测器平面旁边以及自动采集和分析探测器信号。可以通过低程度的人工交互来校准和校准每个单独的光纤通道。
Characterization of the Hamamatsu H12700A-03 and R12699-03 multi-anode photomultiplier tubes
H12700是Hamamatsu生产的新型64通道52 $\times$ 52 mm $^2$方形多阳极光电倍增管（MaPMT）。其特性使该器件适用于高能物理应用，例如环形成像切伦科夫（RICH）探测器。Hamamatsu为H12700管提供了一个嵌入式插座，将阳极连接到输出引脚，并包括一个有源分压器。第二个设备版本R12699也可用，与前者不同的是没有插座。本文描述了一个完整的表征这两种模式，从标准的操作参数（单光子光谱、平均增益、阳极均匀性和暗电流值），详细研究相邻像素之间的串扰效应，并考虑临界环境条件下的行为，例如在高达100高斯的静态磁场存在下，在不同的操作温度下和长时间暴露于强光后。
Localised response retrieval from Hamamatsu H9500 for a coded aperture neutron-gamma imaging system based on an organic pixelated plastic scintillator (EJ-299-34)
