Near-intrinsic energy resolution for 30-662 keV gamma rays in a high pressure xenon electroluminescent TPC

被引：58

作者：

Alvarez, V. ^{[1
,2
]}

Borges, F. I. G. M. ^{[3
]}

Carcel, S. ^{[1
,2
]}

Castel, J. ^{[4
]}

Cebrian, S. ^{[4
]}

Cervera, A. ^{[1
,2
]}

Conde, C. A. N. ^{[3
]}

Dafni, T. ^{[4
]}

Dias, T. H. V. T. ^{[3
]}

Diaz, J. ^{[1
,2
]}

Egorov, M. ^{[6
]}

Esteve, R. ^{[5
]}

Evtoukhovitch, P. ^{[7
]}

Fernandes, L. M. P. ^{[3
]}

Ferrario, P. ^{[1
,2
]}

Ferreira, A. L. ^{[13
]}

Freitas, E. D. C. ^{[3
]}

Gehman, V. M. ^{[6
]}

Gil, A. ^{[1
,2
]}

Goldschmidt, A. ^{[6
]}

Gomez, H. ^{[4
]}

Gomez-Cadenas, J. J. ^{[1
,2
]}

Gonzalez-Diaz, D. ^{[4
]}

Gutierrez, R. M. ^{[9
]}

Hauptman, J. ^{[10
]}

Hernando Morata, J. A. ^{[11
]}

Herrera, D. C. ^{[4
]}

Iguaz, F. J. ^{[4
]}

Irastorza, I. G. ^{[4
]}

Jinete, M. A. ^{[9
]}

Labarga, L. ^{[12
]}

Liubarsky, I. ^{[1
,2
]}

Lopes, J. A. M. ^{[3
]}

Lorca, D. ^{[1
,2
]}

Losada, M. ^{[9
]}

Luzon, G. ^{[4
]}

Mari, A. ^{[5
]}

Martin-Albo, J. ^{[1
,2
]}

Martinez, A. ^{[1
,2
]}

Miller, T. ^{[6
]}

Moiseenko, A. ^{[7
]}

Monrabal, F. ^{[1
,2
]}

Monteiro, C. M. B. ^{[3
]}

Mora, F. J. ^{[5
]}

Moutinho, L. M. ^{[8
]}

Munoz Vidal, J. ^{[1
,2
]}

Natal da Luz, H. ^{[3
]}

Navarro, G. ^{[9
]}

Nebot-Guinot, M. ^{[1
,2
]}

Nygren, D. ^{[6
]}

机构：

[1] CSIC, Inst Fis Corpuscular IFIC, Valencia 46980, Spain

[2] Univ Valencia, Valencia 46980, Spain

[3] Univ Coimbra, Dept Fis, P-3004516 Coimbra, Portugal

[4] Univ Zaragoza, Lab Fis Nucl & Astroparticulas, E-50009 Zaragoza, Spain

[5] Univ Politecn Valencia, Inst Instrumentac Imagen Mol I3M, Valencia 46022, Spain

[6] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[7] Joint Inst Nucl Res, Dubna 141980, Russia

[8] Univ Aveiro, Inst Nanostruct Nanomodelling & Nanofabricat i3N, P-3810193 Aveiro, Portugal

[9] Univ Antonio Narino, Ctr Invest Ciencias Basicas & Aplicadas, Bogota, Colombia

[10] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

[11] Univ Santiago de Compostela, IGFAE, Santiago De Compostela 15782, Spain

[12] Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid, Spain

[13] Univ Politecn Valencia, Dpto Mecan Medios Continuos & Teor Estruct, E-46071 Valencia, Spain

[14] UAM CSIC, Inst Fis Teor, Madrid 28049, Spain

[15] Univ Girona, Escola Politecn Super, Girona 17071, Spain

[16] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2013年 / 708卷

关键词：

Xenon; Energy resolution; High-pressure; TPC; Electroluminescence; Neutrinoless double beta decay; MONTE-CARLO-SIMULATION; DOUBLE-BETA DECAY; IONIZATION-CHAMBER; COMPRESSED XENON; ELECTRON-DRIFT; GAS; SPECTROMETER; ABSORPTION;

D O I：

10.1016/j.nima.2012.12.123

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We present the design, data and results from the NEXT prototype for Double Beta and Dark Matter (NEXT-DBDM) detector, a high-pressure gaseous natural xenon electroluminescent time projection chamber (TPC) that was built at the Lawrence Berkeley National Laboratory. It is a prototype of the planned NEXT-100 Xe-136 neutrino-less double beta decay (0 nu beta beta) experiment with the main objectives of demonstrating near-intrinsic energy resolution at energies up to 662 keV and of optimizing the NEXT-100 detector design and operating parameters. Energy resolutions of similar to 1% FWHM for 662 keV gamma rays were obtained at 10 and 15 atm and similar to 5% FWHM for 30 keV fluorescence xenon X-rays. These results demonstrate that 0.5% FWHM resolutions for the 2459 keV hypothetical neutrino-less double beta decay peak are realizable. This energy resolution is a factor 7-20 better than that of the current leading 0 nu beta beta experiments using liquid xenon and thus represents a significant advancement. We present also first results from a track imaging system consisting of 64 silicon photo-multipliers recently installed in NEXT-DBDM that, along with the excellent energy resolution, demonstrates the key functionalities required for the NEXT-100 0 nu beta beta search. (c) 2013 Elsevier B.V. All rights reserved.

引用

页码：101 / 114

页数：14

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