本文選題：高能粒子探測　切入點(diǎn)：量能器　出處：《成都理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：地震是破壞性大、損傷嚴(yán)重的自然災(zāi)害之一,如果能夠利用監(jiān)測方式,對地震的危害有提前性預(yù)告,則可以給社會(huì)減少很大的損失。通過研究空間粒子的分布來推測地震的可能性具有重要意義。中國電磁監(jiān)測試驗(yàn)衛(wèi)星(ZH-1)是國內(nèi)第一顆用于地震活動(dòng)監(jiān)測的試驗(yàn)衛(wèi)星,高能段載荷(HEPP-H)是ZH-1上高能粒子探測器的重要組成部分之一,其物理目標(biāo)是測量空間高能帶電粒子的空間分布、時(shí)間變化和能譜演化,實(shí)現(xiàn)對于空間高能帶電粒子的通量、能譜和入射角度的測量,同時(shí)實(shí)現(xiàn)電子和質(zhì)子的種類鑒別。本文通過對HEPP-H前期確定的整體目標(biāo)任務(wù),主要進(jìn)行了以下幾方面的研究：(1)模擬量能器粒子沉淀能量得出量能器晶體對粒子的測量范圍,電子和質(zhì)子的能區(qū)范圍分別是2-50MeV和15-200MeV。通過整體的采樣事例率和功耗分配研究,得出量能器前端讀出電子學(xué)的設(shè)計(jì)要求是：整體功耗是5w,單個(gè)事例處理速度1MHz,輸入電荷范圍是0.083pC-15pC,整體電路的電子學(xué)噪聲10fC。(2)根據(jù)量能器前端讀出電子學(xué)的設(shè)計(jì)要求,采用了分離元件和VA32讀出相結(jié)合的方法設(shè)計(jì)量能器電子學(xué)電路。分離元件方法是對量能器的第一層塑料閃爍體的沉淀能量的讀出,VA32讀出方法是對量能器2-5層CsI晶體沉淀能量的讀出。整體的設(shè)計(jì)結(jié)構(gòu)中分離元件的方法是速讀出信號(hào),作為整體電路的觸發(fā)信號(hào)使用。(3)量能器讀出電子學(xué)設(shè)計(jì)合理性驗(yàn)證測試。利用信號(hào)發(fā)生器模擬信號(hào)輸入,采用指數(shù)衰減型信號(hào)來測試整體電路的電路延遲時(shí)間、放大倍數(shù)和處理速度等電路的基本具體信息。在電路測試中最重要的是FPGA邏輯控制驗(yàn)證,利用主要芯片對整體數(shù)字觸發(fā)控制、ASIC數(shù)字配置、DAC控制、ADC控制、通信口的匹配都做出了具體的驗(yàn)證。(4)量能器系統(tǒng)探測性能測試。模擬空間環(huán)境,分別對宇宙線μ子和質(zhì)子束流進(jìn)行了測試,得到了兩種粒子的能道分布,為粒子規(guī)律判定做出了基礎(chǔ)數(shù)據(jù)處理。
[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.

【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P315.7;V447

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