Study of Scintillation Fiber Calorimeter for High Energy Particles

高能粒子闪烁光纤量热仪的研究

• 批准号: 02044150
• 负责人: TAKASAKI Fumihiko
• 金额: $ 1.92万
• 依托单位: National Laboratory for High Energy Physics
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1990
• 资助国家: 日本
• 起止时间: 1990 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02044150/
• 关键词: Calorimeter; Scintillation Fiber

Scintillation Fiber Calorimeter (SFCAL) is a calorimeter which has attracted interests as one of the detectors to be developed for high energy physics experiments in the coming years, especially at the multi-TeV hadron colliders such as SSC or LHC. We have been developing plastic scintillation fibers and a readout system of fiber calorimeter. A calorimeter module which we have been studying is 2.3 m long made of 1mm PHI scintillation fibers and lead. The proportion of scintillation fiber and lead is 1 to 4 in volume. The cross sections of the front and rear ends of the module are 4 x 4 cm and 8 X 8 cm. Protruding fibers at the rear end are bundled keeping the order of fibers in the lead. Bundled fibers are mirror-polished and connected to a multi-anode photomultiplier (MAPMT), Hamamatsu H4484. This MAPMT has 64 anodes and it makes it possible for us to study the features of the shower development in the material. We make nine modules and they are assembled in a 3 x 3 matrix forming a l … More arger calorimeter module. It weighs about 900Kg in total.Before studying this module for the high energy beam at CERN, we made a preliminary test of it on a few GeV electron beams produced at the TRISTAN Accumulation Ring for the following items.1) Treatment of output pulses with FADC2) Energy dependence of output signal3) Spread of shower in the module at its energy dependence4) Attenuation of the scintillation light in the module5) Interference of output pulse among the anodes6) Energy leakage between calorimeter modules7) Dependence of output pulse on the mechanical stress to the module8) Dependence of the output pulse on the incident beam angle9) Long term stability of the output pulseThe results are currently analyzed carefully. We confirmed that the light attenuation in the module depends critically on the glue used to assemble fibers and lead. It was first found by the collaborator at CERN. This fact will make us reconsider the way of fabrication of the calorimeter module in the next attempt. Less

闪烁光纤量热计(SFCAL)是未来几年发展起来的高能物理实验探测器之一，特别是在SSC或LHC等多TeV强子对撞机上。我们一直在开发塑料闪烁光纤和光纤量热计读出系统。我们一直在研究的量热计模块长2.3米，由1 mm的PHI闪烁纤维和铅制成。闪烁纤维与铅的体积比为1：4。模块前端和后端的横截面分别为4 x 4厘米和8 x 8厘米。后端突出的纤维被捆绑在一起，保持了纤维在导线中的顺序。捆绑的光纤经过镜面抛光，并连接到多阳极光电倍增管(MAPMT)Hamamatsu H4484。这种MAPMT有阳极，这使得我们有可能在材料中研究簇射发展的特征。我们制作了九个模块，它们组装成一个3x3的矩阵，形成了一个L…更多更大的量热计模块。在为欧洲核子研究中心的高能束研究这个模块之前，我们在特里斯坦累积环产生的几个GeV电子束上做了如下的初步测试：1)用FADC2处理输出脉冲；3)输出信号的能量依赖关系；4)模块中闪烁光的衰减；5)输出脉冲在阳极之间的干涉；6)量热计模块之间的能量泄漏；7)输出脉冲对机械应力的依赖关系；8)输出脉冲对入射光束角度的依赖关系；9)输出脉冲的长期稳定性。我们证实，模块中的光衰减严重依赖于用于组装纤维和导线的胶水。它首先是由欧洲核子研究中心的合作者发现的。这一事实将使我们在下一次尝试中重新考虑量热模块的制造方式。较少

项目成果

Takasaki Fumihiko et al: "Performance of Scintillation Fiber Calorimeter and Readout System with Multi-anode Photomultiplier Tibes" KEK Preprint (To be submitted to Nuclear Instruments and Methods). 89-183. (1990)

Takasaki Fumihiko 等人：“带有多阳极光电倍增管的闪烁光纤量热仪和读出系统的性能”KEK 预印本（将提交给核仪器和方法）。

高崎 史彦 他: "Performance of Scintillation Fiber Calorimeter and Readoutーsystem with Multiーanode Photomultiplier Tubes" KEK Preprint. 89ー183. (1990)

Fumihiko Takasaki 等人：“带有多阳极光电倍增管的闪烁光纤量热仪和读出系统的性能”KEK 89-183。

池田 博一 他: "Monolithic Shaper Amplifier for Multianode Readout" Nuclear Instruments and Methods. A292. 439-444 (1990)

Hirokazu Ikeda 等人：“用于多阳极读出的单片整形放大器”核仪器和方法439-444 (1990)。

Ikeda Hirokazu et al: "Monolithic shaper Amplifier for Multianode Readout" Nuclear Instruments and Methods. A292. 439-444 (1990)

Ikeda Hirokazu 等人：“用于多阳极读出的单片整形放大器”核仪器和方法。