F Fermi National Accelerator Laboratory FERMILAB-Pub-97 / 092 Evaluation of Candidate Photomultiplier Tubes for the Upgrade of the CDF End Plug Calorimeter
F Fermi National Accelerator Laboratory FERMILAB-Pub-97 / 092 Evaluation of Candidate Photomultiplier Tubes for the Upgrade of the CDF End Plug Calorimeter
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F 费米国家加速器实验室 FERMILAB-Pub-97 / 092 用于 CDF 端塞热量计升级的候选光电倍增管的评估
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
A. Ronzhin
中科院分区：
文献类型：
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作者：
W. Koska;S. Delchamps;W. Kinney;D. Lewis;P. Limon;A. Ronzhin
费米实验室的对撞机探测器正在将其端塞式量热计从气体探测器系统升级为使用通过波长转换光纤读取的闪烁瓦的系统。这一升级是为了利用Tevatron未来将提供的亮度增加。瓦纤维量热计纵向分为电磁部分和强子部分，将通过1,824个光电倍增管读出。量热计的性能要求要求光电倍增管对500 nm范围内的光具有良好的响应，对来自最小电离粒子的信号提供足够的放大，在5x 104的增益下对峰值阳极电流提供高达25 mA的线性响应，并且适合插头后部的有限空间。为了方便起见，我们也希望一个单一的PMT和基地的组合被用于电磁和强子量热计，即使在这些部分所需的增益相差10倍。本文描述了用于确定市售PMT是否足以满足我们的性能要求的评估过程。
The Collider Detector at Fermilab is upgrading its end plug calorimeter from a gas detector system to one using scintillating tiles read out through wavelength shifting fibers. This upgrade is required to take advantage of the increase in luminosity which the Tevatron will provide in the future. The tile-fiber calorimeter, which is longitudinally segmented into electromagnetic and hadronic sections, will be read out through 1,824 photomultiplier tubes. The performance requirements of the calorimeter demand that the PMTs have good response to light in the 500 nm region, provide adequate amplification for signals from minimum ionizing particles, provide linear response for peak anode currents up to 25 mA at a gain of 5x104, and fit into the restricted space at the rear of the plugs. For convenience, we also desire a single PMT and base combination be used for the electromagnetic and hadron calorimeters even though the required gains in these sections differ by a factor of 10. This paper describes the evaluation process used to determine the adequacy of the commercially available PMTs which appeared to meet our performance requirements.