康卜吞成像光譜儀數據讀出系統｜國立中央大學博碩士論文系統

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研究生：	洪偉哲 Wei-che Hung
論文名稱：	康卜吞成像光譜儀數據讀出系統 The Data Readout System of the Nuclear Compton Telescope (NCT)
指導教授：	張元翰 Yuan-Hann Chang
口試委員:
學位類別：	碩士 Master
系所名稱：	理學院 - 物理學系 Department of Physics
畢業學年度：	100
語文別：	英文
論文頁數：	36
中文關鍵詞：	康卜吞成像光譜儀
外文關鍵詞：	NCT, CardCage
相關次數：	點閱：18 下載：0
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康卜吞散射光子探測器是一個三維-鍺探測器的高空氣球實驗探測器。它被設計使用在天文，觀測光子能量介於0.2百萬電子伏特到10百萬電子伏特的發射線。康普頓散射光子探測器的數據讀出系統會將訊號放大,數位化並且根據不同的觸發訊號去讀出一系列的數據資料。它也負責對飛行電腦溝通，接受飛行電腦傳達的指令然後做出動作，並且將讀出的數位數據傳入飛行電腦。這篇論文概括讀出系統的設計還有重要的科學與試成果。

The Nuclear Compton Telescope (NCT) is a balloon-borne telescope based on the 3D-positioning germanium detectors. It is designed to study astrophysical sources of gamma-ray emission in the energy range of 0.2 MeV to 10 MeV. The data readout system of NCT is designed to amplify, digitize and collect signals from a germanium detector according to a certain trigger scheme. It also has an interface to the NCT flight computer to receive commands and transfer data. This paper contains the design and the scientific test result of the readout system.

中文摘要                                                  i
Abstract	                                                ii
誌謝	                                               iii
Contents	                                                iv
Figures                                                   v
Tables	                                                vi
Chapter 1	Introduction                                     1
Chapter 2	Overview of NCT                                  4
2-1   Twelve arrays Germanium detectors                   4
2-2   BGO Veto system                                     6
2-3   The Flight Computer                                 7
2-4   The CardCages                                       8
2-5   The Power System-Solar panels and batteries         9
2-6   The NCT Gondola                                     9
Chapter 3	The CardCage and production test                11
3-1   Overview of the Readout System and Related system  11
3-2   The Compton scattering event in NCT                14
3-3   Each modules of CardCage                           15
3-3-1   Low-volt and High-volt modules: LVPS, HVPS       15
3-3-2   The analog and digital parts: Analog, DSP        16
3-4   Data Flow chart and trigger veto decision          18
3-5   CardCage Timing Measurement Verification           19
3-5-1   Time difference test with fixed signal amplitude 19
3-5-2   The X, Y-signal amplitude dependence test        19
3-6   CardCage Energy Measurement Verification           20
3-7   CardCage Event Rate Test                           21
3-8 CardCage Lifetime Measurement and Trigger Rate Study 22
3-9   Gain Adjustment of Analog board                    23
3-10   CardCage Thermal Cycling Test                     23
3-11   CardCage Integration with NCT                     24
Chapter 4	The Flight Result in spring 2010                25
4-1   NCT analysis software overview                     25
4-2   Analysis result for 2009 flight                    26
Chapter 5	Summary                                         28
5-1   2009 fligh analysis summary                        29
5-2   Further use for CardCage                           30
參考文獻	                                               34
附錄一	                                               36
附錄二	                                               37

                                

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[17]M. Amman, P. N. Luke, and S. E. Boggs, “Amorphous-semiconductor- contact germanium-based detectors for gamma-ray imaging and spec-troscopy,” Nucl. Instruments Methods Phys. Res. A, vol. 579, pp. 886–890, Sep. 2007.
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[20] NSPO, NCT, midterm report, Readout Electronics.

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