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Title: Results from the NEXT Protogypes

NEXT-100 is an electroluminescent high pressure Time Projection Chamber currently under construction. It will search for the neutrino-less double beta decay in 136Xe at the Canfranc Underground Laboratory. NEXT-100 aims to achieve nearly intrinsic energy resolution and to highly suppress background events by taking advantage of the unique properties of xenon in the gaseous phase as the detection medium. In order to prove the principle of operation and to study which are the best operational conditions, two prototypes were constructed: NEXT-DEMO and NEXT-DBDM. In this study we present the latest results from both prototypes. We report the improvement in terms of light collection (~ 3x) achieved by coating the walls of NEXT-DEMO with tetraphenyl butadiene (TPB), the outstanding energy resolution of 1% (Full Width Half Maximum) from NEXT-DBDM as well as the tracking capabilities of this prototype (2.1 mm RMS error for point-like depositions) achieved by using a square array of 8 x 8 SiPMs.
Authors:
 [1]
  1. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Publication Date:
Grant/Contract Number:
AC02-05CH11231; FPA2009-13697-C04-04; CSD2008-0037
Type:
Accepted Manuscript
Journal Name:
Journal of Physics. Conference Series (Online)
Additional Journal Information:
Journal Name: Journal of Physics. Conference Series (Online); Journal Volume: 460; Conference: Sixth Symposium on Large TPCs for Low Energy Rare Event Decision, Paris (France) , 17-19 Dec 2012; Journal ID: ISSN 1742-6596
Publisher:
Institute of Physics (IOP)
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); Ministerio de Economia y Competitividad of Spain
Contributing Orgs:
The NEXT Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
OSTI Identifier:
1096609

Oliveira, C A.B.. Results from the NEXT Protogypes. United States: N. p., Web. doi:10.1088/1742-6596/460/1/012011.
Oliveira, C A.B.. Results from the NEXT Protogypes. United States. doi:10.1088/1742-6596/460/1/012011.
Oliveira, C A.B.. 2013. "Results from the NEXT Protogypes". United States. doi:10.1088/1742-6596/460/1/012011. https://www.osti.gov/servlets/purl/1096609.
@article{osti_1096609,
title = {Results from the NEXT Protogypes},
author = {Oliveira, C A.B.},
abstractNote = {NEXT-100 is an electroluminescent high pressure Time Projection Chamber currently under construction. It will search for the neutrino-less double beta decay in 136Xe at the Canfranc Underground Laboratory. NEXT-100 aims to achieve nearly intrinsic energy resolution and to highly suppress background events by taking advantage of the unique properties of xenon in the gaseous phase as the detection medium. In order to prove the principle of operation and to study which are the best operational conditions, two prototypes were constructed: NEXT-DEMO and NEXT-DBDM. In this study we present the latest results from both prototypes. We report the improvement in terms of light collection (~ 3x) achieved by coating the walls of NEXT-DEMO with tetraphenyl butadiene (TPB), the outstanding energy resolution of 1% (Full Width Half Maximum) from NEXT-DBDM as well as the tracking capabilities of this prototype (2.1 mm RMS error for point-like depositions) achieved by using a square array of 8 x 8 SiPMs.},
doi = {10.1088/1742-6596/460/1/012011},
journal = {Journal of Physics. Conference Series (Online)},
number = ,
volume = 460,
place = {United States},
year = {2013},
month = {10}
}