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Research and Development of Imaging Calorimeter for Space Experiment Using CERN-SPS

CERN-SPS空间实验成像热量计的研制

基本信息

批准号：
14403002
负责人：
TORII Shoji
金额：
$ 8.38万
依托单位：
Kanagawa University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

项目摘要

We have developed an imaging calorimeter for cosmic-ray observation, which is able to be borne on balloon and space station. The development was carried out in collaboration with researchers in Italy and France for using the CERN-SPS beams. As a read out system of multi-anode PMT used in the calorimeter, we tried to develop an analog ASIC and a front-end circuit(FEC) with 16bit ADC and FPGA. The system was tested three times in each year by using CERN-SPS beams with various energies of electrons and protons. The research results in each test are summarize in the following.1.2002 We made a read-out system using conventional ASC and FEC for 64 anode-PMT. The system is composed of 6 PMTs to read the 512ch signals from scintillating fibers. By the beam tests at CERN, we found that the noise in FEC is to large to achieve the dynamic range and the read-out speed is not fast.2.2003 We developed a low noise ASIC and a high speed FEC by improving the design of FEC. FPGA is adopted to realize a flexible system for trigger logic. The interface board of VME system was also developed to achieve the high rate data taking. Finally, we have succeeded in the high speed and large dynamic range system for imaging calorimeter. The performance was studied by the CERN.-SPS beams.3.2004 The system modified in the detector was proved to have a required performance for space application by tests using the highest energy beams in CERN-SPS.

我们研制了一种用于宇宙线观测的成像量能器，它可以搭载在气球和空间站上。这项研究是与意大利和法国的研究人员合作进行的，目的是使用CERN-SPS光束。作为量热计用多阳极光电倍增管的读出系统，我们尝试了用16位ADC和FPGA开发模拟ASIC和前端电路（FEC）。该系统每年使用CERN-SPS电子束和不同能量的电子和质子进行三次测试。本文对各项实验的研究结果进行了总结。1. 2002年我们研制了一套基于64阳极光电倍增管的常规自适应校正和前向纠错的光电倍增管读出系统。该系统由6个光电倍增管组成，用于读取512路光纤传输信号。通过在CERN的波束测试，我们发现FEC的噪声太大，不能达到动态范围，读出速度不快。2.2003我们通过改进FEC的设计，开发了一个低噪声ASIC和一个高速FEC。采用FPGA实现了灵活的触发逻辑系统。还开发了VME系统接口板，实现了高速数据采集。最后，我们成功地研制出了高速大动态范围成像量热计系统。欧洲核子研究中心研究了它的性能。2004年3月，通过使用欧洲核子研究组织空间光同步辐射实验室的最高能量光束进行的测试，证明探测器中经过修改的系统具有空间应用所需的性能。