Angular reconstruction of a lead scintillating-fiber sandwiched electromagnetic calorimeter
The Neighbor Cell Deposited Energy Ratio （NCDER） is a new method that is proposed to reconstruct incidence position in a single layer for a 3-dimensional imaging electromagnetic calorimeter （ECAL）. This method was applied to reconstruct the ECAL test beam data for the Alpha Magnetic Spectrometer-02...
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| Published in | Chinese physics C Vol. 38; no. 5; pp. 76 - 81 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.05.2014
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-1137 0254-3052 |
| DOI | 10.1088/1674-1137/38/5/056203 |
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| Abstract | The Neighbor Cell Deposited Energy Ratio （NCDER） is a new method that is proposed to reconstruct incidence position in a single layer for a 3-dimensional imaging electromagnetic calorimeter （ECAL）. This method was applied to reconstruct the ECAL test beam data for the Alpha Magnetic Spectrometer-02 （AMS-02）. The results show that this method can achieve an angular resolution of 7.36±0.08°/√E＋0.28±0.02° in the determination of the photon＇s direction, which is much more precise than that obtained with the commonly-adopted Center of Gravity （COG） method （8.4±0.1°/E＋0.8±0.3°）. Furthermore, since it uses only the properties of electromagnetic showers, this new method could also be used for other type of fine grain sampling calorimeters. |
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| AbstractList | The Neighbor Cell Deposited Energy Ratio (NCDER) is a new method that is proposed to reconstruct incidence position in a single layer for a 3-dimensional imaging electromagnetic calorimeter (ECAL). This method was applied to reconstruct the ECAL test beam data for the Alpha Magnetic Spectrometer-02 (AMS-02). The results show that this method can achieve an angular resolution of 7.36 0.08[degrees][radical]E[+ in circle]0.28 0.02[degrees] in the determination of the photon's direction, which is much more precise than that obtained with the commonly-adopted Center of Gravity (COG) method (8.4 0.1[degrees]/[radical]E[+ in circle]0.8 0.3[degrees]). Furthermore, since it uses only the properties of electromagnetic showers, this new method could also be used for other type of fine grain sampling calorimeters. The Neighbor Cell Deposited Energy Ratio （NCDER） is a new method that is proposed to reconstruct incidence position in a single layer for a 3-dimensional imaging electromagnetic calorimeter （ECAL）. This method was applied to reconstruct the ECAL test beam data for the Alpha Magnetic Spectrometer-02 （AMS-02）. The results show that this method can achieve an angular resolution of 7.36±0.08°/√E＋0.28±0.02° in the determination of the photon＇s direction, which is much more precise than that obtained with the commonly-adopted Center of Gravity （COG） method （8.4±0.1°/E＋0.8±0.3°）. Furthermore, since it uses only the properties of electromagnetic showers, this new method could also be used for other type of fine grain sampling calorimeters. |
| Author | 李祖豪 许伟伟 王玲玉 张诚 唐志成 严琪 杨民 吕雨生 陈国明 陈和生 |
| AuthorAffiliation | Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China |
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| Cites_doi | 10.1016/j.asr.2009.08.005 10.1016/S0920-5632(97)00087-X 10.1016/S0920-5632(02)01836-4 10.1088/1674-1137/32/3/006 10.1016/S0927-6505(99)00115-2 |
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| DocumentTitleAlternate | Angular reconstruction of a lead scintillating-fiber sandwiched electromagnetic calorimeter |
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| Notes | The Neighbor Cell Deposited Energy Ratio （NCDER） is a new method that is proposed to reconstruct incidence position in a single layer for a 3-dimensional imaging electromagnetic calorimeter （ECAL）. This method was applied to reconstruct the ECAL test beam data for the Alpha Magnetic Spectrometer-02 （AMS-02）. The results show that this method can achieve an angular resolution of 7.36±0.08°/√E＋0.28±0.02° in the determination of the photon＇s direction, which is much more precise than that obtained with the commonly-adopted Center of Gravity （COG） method （8.4±0.1°/E＋0.8±0.3°）. Furthermore, since it uses only the properties of electromagnetic showers, this new method could also be used for other type of fine grain sampling calorimeters. 11-5641/O4 electromagnetic calorimeter, angular resolution, lateral fit, Neighbor Cell Deposited Energy Ratio ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
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| References | 1 2 Tao Jun-Quan (5) 2008; 32 3 6 Li Zu-Hao (7) 2004; 28 Wang Xiao-Bin (8) 2005; 29 Di Falco Stefano (4) 2010; 45 |
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| Snippet | The Neighbor Cell Deposited Energy Ratio （NCDER） is a new method that is proposed to reconstruct incidence position in a single layer for a 3-dimensional... The Neighbor Cell Deposited Energy Ratio (NCDER) is a new method that is proposed to reconstruct incidence position in a single layer for a 3-dimensional... |
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| SubjectTerms | Alpha Magnetic Spectrometer Angular resolution Center of gravity Cog Deposition Reconstruction Sampling Showers 夹层 测定方法 电磁量能器 能量比率 角分辨率 铅 闪烁光纤 阿尔法磁谱仪 |
| Title | Angular reconstruction of a lead scintillating-fiber sandwiched electromagnetic calorimeter |
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