高能粒子探测器HEPP-H量能器读出电子学研究

发布时间：2018-03-11 21:18

本文选题：高能粒子探测　切入点：量能器　出处：《成都理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：地震是破坏性大、损伤严重的自然灾害之一,如果能够利用监测方式,对地震的危害有提前性预告,则可以给社会减少很大的损失。通过研究空间粒子的分布来推测地震的可能性具有重要意义。中国电磁监测试验卫星(ZH-1)是国内第一颗用于地震活动监测的试验卫星,高能段载荷(HEPP-H)是ZH-1上高能粒子探测器的重要组成部分之一,其物理目标是测量空间高能带电粒子的空间分布、时间变化和能谱演化,实现对于空间高能带电粒子的通量、能谱和入射角度的测量,同时实现电子和质子的种类鉴别。本文通过对HEPP-H前期确定的整体目标任务,主要进行了以下几方面的研究：(1)模拟量能器粒子沉淀能量得出量能器晶体对粒子的测量范围,电子和质子的能区范围分别是2-50MeV和15-200MeV。通过整体的采样事例率和功耗分配研究,得出量能器前端读出电子学的设计要求是：整体功耗是5w,单个事例处理速度1MHz,输入电荷范围是0.083pC-15pC,整体电路的电子学噪声10fC。(2)根据量能器前端读出电子学的设计要求,采用了分离元件和VA32读出相结合的方法设计量能器电子学电路。分离元件方法是对量能器的第一层塑料闪烁体的沉淀能量的读出,VA32读出方法是对量能器2-5层CsI晶体沉淀能量的读出。整体的设计结构中分离元件的方法是速读出信号,作为整体电路的触发信号使用。(3)量能器读出电子学设计合理性验证测试。利用信号发生器模拟信号输入,采用指数衰减型信号来测试整体电路的电路延迟时间、放大倍数和处理速度等电路的基本具体信息。在电路测试中最重要的是FPGA逻辑控制验证,利用主要芯片对整体数字触发控制、ASIC数字配置、DAC控制、ADC控制、通信口的匹配都做出了具体的验证。(4)量能器系统探测性能测试。模拟空间环境,分别对宇宙线μ子和质子束流进行了测试,得到了两种粒子的能道分布,为粒子规律判定做出了基础数据处理。
[Abstract]:Earthquake is a devastating injury, one of the serious natural disasters, if can use monitoring, damage to the earthquake early warning, can reduce a great loss to the society. It is significant to infer the possibility of an earthquake through the distribution of the particles. Electromagnetic satellite in China (ZH-1) is the first a test for satellite monitoring seismic activity, high load (HEPP-H) is an important part of the high-energy particle detector ZH-1, its goal is to measure the distribution of physical space energetic particle space, time variation and energy spectrum evolution for space energetic particle flux, can measure the incident angle and the spectrum at the same time, the identification of electrons and protons. The overall objectives and tasks identified on the HEPP-H of the research includes the following aspects: (1) simulation of particle calorimeter The measuring range of precipitation sub energy calorimeter of crystal particles, electron and proton energy range are 2-50MeV and 15-200MeV. by studying the event rate and power allocation of the whole sample, obtained the design requirements of calorimeter front-end readout electronics is the overall power consumption is 5W, the single case processing speed of 1MHz, the charge input range is 0.083pC-15pC 10fC. electronics noise of the whole circuit (2) according to the design requirements of calorimeter front-end readout electronics, using separate components and VA32 readout method of combining the design of calorimeter electronic circuit. The separation element is read first layer of plastic scintillator energy deposition on the calorimeter of the VA32 readout method is to calorimeter readout the 2-5 layer of CsI crystal precipitation energy. Design the overall structure of isolated element method is fast readout signal as a trigger signal, using the whole circuit (3) volume. For the design of readout electronics test. Verify the input analog signal by signal generator, using the exponential decay signal to test the circuit of the whole circuit delay time, basic information specific amplification and processing speed. The most important circuit in circuit testing is FPGA logic control verification, trigger control on the overall use of digital main chip, ASIC digital configuration, DAC control, ADC control, communication port has made specific validation. (4) calorimeter system detection performance test. The simulated space environment, respectively on the cosmic ray muon and proton beam were tested, and obtained two kinds of particles can determine the particle distribution law made the basic data processing.

【学位授予单位】：成都理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P315.7;V447

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