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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/3777完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 王名儒 | |
| dc.contributor.author | Jing-Han Chen | en |
| dc.contributor.author | 陳璟翰 | zh_TW |
| dc.date.accessioned | 2021-05-13T08:36:40Z | - |
| dc.date.available | 2016-08-24 | |
| dc.date.available | 2021-05-13T08:36:40Z | - |
| dc.date.copyright | 2016-08-24 | |
| dc.date.issued | 2016 | |
| dc.date.submitted | 2016-08-09 | |
| dc.identifier.citation | [1] Henry T. Wong. Ultra-low-energy germanium detector for neutrino-nucleus co- herent scattering and dark matter searches. Modern Physics Letters A, 23:1431– 1442, 2008.
[2] John Shultis and Richard Faw. Fundamentals of Nuclear Science and Engineer- ing, page 141. CRC Press, 2007. [3] Y-F. Wang et al. Predicting neutron production from cosmic-ray muons. Phys.Rev. D, 64, 2001. [4] S. Cebri ́an et al. Cosmogenic activation in germanium and copper for rare event searches. Astroparticle Physics, 33:316–329, 2010. [5] D.-M. Mei, Z.-B. Yin, and S. R. Elliott. Cosmogenic production as a background in searching for rare physics processes. Astroparticle Physics, 31:417–420, 2009. [6] A. Koning, S. Hilaire, and M. Duijvestijn. Talys code, http://www.talys.eu/. [7] L. Bornschein for the KATRIN-Collaboration. The katrin experiment - a direct measurement of the electron antineutrino mass in the sub-ev region. Nuclear Physics A, 752:14c–23c, 2005. [8] John L. Orrell. Cogent dark matter experiment. Technical report, Pacific North- west National Laboratory, 2013. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/3777 | - |
| dc.description.abstract | To observe the neutrino-nucleus coherent scattering and dark matter searching, a detection system with ultra-low energy high purity germanium detector has been built up by TEXONO Collaboration in Kuo-Sheng Nuclear Power Plant. Due to the rarity and small recoil energy of these processes, understanding the background sources and their contribution to the energy spectrum are the key factors in this experiment. By using a data analysis toolkit called ROOT which was developed by CERN to reproduce the background, comparing to the experimental data, we can estimate the upper limit of Tritium beta decay activities in HPGe crystal. In data analysis, the p-type Germanium detector has a surface effect which will distort the energy deposit in the surface of Ge crystal, a charge collection efficiency function is to determine the energy loss because of the surface effect. By ROOT and a simulation toolkit GEANT4, we can try to find out the possible structure of charge collection efficiency in Ge surface. | en |
| dc.description.provenance | Made available in DSpace on 2021-05-13T08:36:40Z (GMT). No. of bitstreams: 1 ntu-105-R02244010-1.pdf: 5390309 bytes, checksum: 593aff3e5207b9255bd3f404081743f8 (MD5) Previous issue date: 2016 | en |
| dc.description.tableofcontents | Abstract i
List of Figures vi List of Tables xii Chapter 1 Overview 1 1.1 TEXONO Overview 1 1.2 A Brief Introduction to Neutrino 2 1.3 A Brief Introduction to WIMPs 3 1.4 The Goal of TEXONO 3 1.4.1 Neutrino-Nucleus Coherent Scattering 3 1.4.2 Dark Matter Searching 5 Chapter 2 Experimental Setup 6 2.1 Kuo-Sheng Neutrino Laboratory 6 2.2 Shielding 7 2.2.1 Passive Shielding 8 2.2.2 Active Shielding 10 Chapter 3 The Surface Effect of p-type Germanium Detector 16 3.1 p-type Point Contact Germanium Detector 16 3.1.1 Germanium Detector Configuration 16 3.1.2 Surface Layer 18 3.2 Charge Collection Efficiency in Transition Layer 24 3.2.1 Simulation and Measurement Data Taking Environment 24 3.2.2 T-function Profile 27 3.2.3 Hyperbolic Tangent Profile 32 Chapter 4 Data Analysis 36 4.1 Parameterization 36 4.2 Event Selection 38 4.2.1 BasicCuts 38 4.2.2 Cosmic Ray Veto 41 4.2.3 Anti-Compton Veto 43 Chapter 5 Internal Background 47 5.1 Introduction 47 5.2 Background Sources 48 5.2.1 Neutron Background 48 5.2.2 Photon Background 49 5.3 X-ray peaks 51 5.4 Tritium Upper Limit 54 5.5 Summary 57 Chapter 6 Summary 59 Bibliography 61 | |
| dc.language.iso | en | |
| dc.subject | 鍺探測器內部背景 | zh_TW |
| dc.subject | 台灣微中子實驗 | zh_TW |
| dc.subject | 鍺探測器表面效應 | zh_TW |
| dc.subject | Ge detector surface effect | en |
| dc.subject | Ge detector Internal Background | en |
| dc.subject | TEXONO | en |
| dc.title | 於國聖核電廠之高純鍺探測器背景的理解與研究 | zh_TW |
| dc.title | Background Studies and Understanding for High-Purity Germanium Detector at Kuo-Sheng Neutrino Laboratory | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 104-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.coadvisor | 王子敬 | |
| dc.contributor.oralexamcommittee | 劉承邦 | |
| dc.subject.keyword | 台灣微中子實驗,鍺探測器表面效應,鍺探測器內部背景, | zh_TW |
| dc.subject.keyword | TEXONO,Ge detector surface effect,Ge detector Internal Background, | en |
| dc.relation.page | 62 | |
| dc.identifier.doi | 10.6342/NTU201602136 | |
| dc.rights.note | 同意授權(全球公開) | |
| dc.date.accepted | 2016-08-09 | |
| dc.contributor.author-college | 理學院 | zh_TW |
| dc.contributor.author-dept | 天文物理研究所 | zh_TW |
| 顯示於系所單位： | 天文物理研究所 | |
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