Study of the THGEM detector with a reflective CsI photocathode

LIU Hong-Bang; ZHENG Yang-Heng; XIE Yi-Gang; LV Jun-Guang; ZHOU Li; YU Bo-Xiang; ZHANG Ai-Wu; AN Zheng-Hua; XIE Yu-Guang; ZHANG Dong; ZHENG Zhi-Peng

doi:10.1088/1674-1137/35/4/008

Chinese Physics C> 2011, Vol. 35> Issue(4) : 363-367 DOI: 10.1088/1674-1137/35/4/008

Study of the THGEM detector with a reflective CsI photocathode

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Abstract：
The THGEM detector without and with a CsI has been tested successfully. The optimal parameters of THGEM have been determined from eight samples. The UV photoelectric effect of the CsI photocathode is observed. The changing tendency related to the extraction efficiency (ε_extr) versus the extraction electric field is measured, and several electric fields influencing the anode current are adjusted to adapt to the THGEM detector with a reflective CsI photocathode.

References

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Chechik R, Breskin A, Shalem C et al. Nucl. Instrum. Methods A, 2004, 535: 303-3082 Chechik R, Breskin A, Shalem C. Nucl. Instrum. Methods A, 2005, 553: 35-403 Hanu A, Byuna S H, Prestwich W V. Nucl. Instrum. Methods A, 2010,doi:10.1016/j.nima.2010.07.0334 Boccone V. J. Phys.: Conf. Ser. 2009, 160 0120325 Breskin A. Nucl. Instrum. Methods A, 1996, 371: 116-1366 Shefer E, Singh B K. Nucl. Instrum. Methods A, 2000, 442: 58-677 Mrmanna D, Breskin A, Chechik R et al. Nucl. Instrum. Methods A, 2002, 478: 230-2348 Alexeev M et al. Nucl. Instrum. Methods A, 2009, doi:10.1016/j.nima.2009.08.0879 Cortesi M, Alon R, Chechik R et al. 2007 JINST 2 P0900210 An Z H et al. CPC(HEP NP), 2010, 34(1): 83-8711 Shalem C et al. Nucl. Instrum. Methods A, 2006, 558: 475-48912 Shalem C K et al. Nucl. Instrum. Methods A, 2006, 558: 468-47413 XIE Y G, CHEN C et al. Particle Detector and Data Acquisition. Beijing: Science Press, 2003. 20 and 628 (in Chinese)14 Azevedo C D R et al. JINST, 2010, 5: P0100215 Nitti M A,Nappi E et al. Nucl. Instrum. Methods A, 2005, 553: 157-16416 Breskin A. Talk in RD51 4th Coll. Meeting, Nov. 24, 2009

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LIU Hong-Bang, ZHENG Yang-Heng, XIE Yi-Gang, LV Jun-Guang, ZHOU Li, YU Bo-Xiang, ZHANG Ai-Wu, AN Zheng-Hua, XIE Yu-Guang, ZHANG Dong and ZHENG Zhi-Peng. Study of the THGEM detector with a reflective CsI photocathode[J]. Chinese Physics C, 2011, 35(4): 363-367. doi: 10.1088/1674-1137/35/4/008

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Received: 2010-07-21
Revised: 2010-09-06

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of the THGEM detector with a reflective CsI photocathode

Received Date: 2010-07-21
Accepted Date: 2010-09-06
Available Online: 2011-04-05

Abstract: The THGEM detector without and with a CsI has been tested successfully. The optimal parameters of THGEM have been determined from eight samples. The UV photoelectric effect of the CsI photocathode is observed. The changing tendency related to the extraction efficiency (ε_extr) versus the extraction electric field is measured, and several electric fields influencing the anode current are adjusted to adapt to the THGEM detector with a reflective CsI photocathode.