Study of Tyvek reflectivity in water

WANG Ling-Yu; LU Hao-Qi; YANG Chang-Gen; YU Ze-Yuan; XU Ji-Lei; LIU Jin-Chang; GUAN Meng-Yun; WANG Zhi-Min; WANG Yi-Fang

doi:10.1088/1674-1137/36/7/011

Chinese Physics C> 2012, Vol. 36> Issue(7) : 628-632 DOI: 10.1088/1674-1137/36/7/011

Study of Tyvek reflectivity in water

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Tyvek is widely used as the inner lining material of water Cherenkov detectors. Therefore, information about its optical properties plays an important role in the simulation and reconstruction of particles passing through water Cherenkov detectors. In this paper, a water tank experiment is performed to study the Tyvek reflectivity in water. The so-called UNIFIED model, which is an optical model of surface reflection in Geant4, is adopted to describe the Tyvek reflectivity. Two key optical parameters are obtained from a comparison between the measured data and a Monte Carlo simulation.

References

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The Super-Kamiokande collaboration. Nucl. Instrum. Methods A, 2003, 501: 418[2] The Pierre Auger collaboration. Nucl. Instrum. Methods A, 2008, 586: 409[3] Daya Bay collaboration. arXiv: hep-ex/0701029, 2007[4] Chavarria Alvaro. A Study on the Reflective Properties of Tyvek in Air and Underwater (Senior Thesis). USA: the Department of Physics of Trinity College, Duke University, 2007[5] Filevich A et al. Nucl. Instrum. Methods A, 1999, 423: 108[6] Arteaga-Velázquez J C et al. Nucl. Instrum. Methods A, 2005, 553: 312[7] LU Hao-Qi. Study of Water Cherenkov and Prototype Detector of Daya Bay Experiment (Ph.D.Thesis) Beijing: Institute of High Energy Physics, CAS, 2009 (in Chinese)[8] Levin A, Moisan C. TRIUMF Internal Note TRI-PP-96-64.1996[9] Born, Max, Wolf, Emil. Principles of Optics, 5th edition. Printed in Great Britain at PAGE BROS(NORWICH) LTD: Pergamon Press Inc., 1975. 182--183[10] Tom McCauley, Tom Paul. GAP-2000-055[11] Press W H et al. Numerical Recipes. Third Edition. New York: Cambridge Univ. Press, 2007. 731--734

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WANG Ling-Yu, LU Hao-Qi, YANG Chang-Gen, YU Ze-Yuan, XU Ji-Lei, LIU Jin-Chang, GUAN Meng-Yun, WANG Zhi-Min and WANG Yi-Fang. Study of Tyvek reflectivity in water[J]. Chinese Physics C, 2012, 36(7): 628-632. doi: 10.1088/1674-1137/36/7/011

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Received: 2011-09-30
Revised: 2011-10-28

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of Tyvek reflectivity in water

Corresponding author: WANG Ling-Yu,

Received Date: 2011-09-30
Accepted Date: 2011-10-28
Available Online: 2012-07-05

Abstract: Tyvek is widely used as the inner lining material of water Cherenkov detectors. Therefore, information about its optical properties plays an important role in the simulation and reconstruction of particles passing through water Cherenkov detectors. In this paper, a water tank experiment is performed to study the Tyvek reflectivity in water. The so-called UNIFIED model, which is an optical model of surface reflection in Geant4, is adopted to describe the Tyvek reflectivity. Two key optical parameters are obtained from a comparison between the measured data and a Monte Carlo simulation.