Research articles

search articles

My Pages

Stat

Members: 3645
Articles: 2'500'096
Articles rated: 2609

19 April 2024

» arxiv » 0804.1222

Article overview

Oxygen contamination in liquid Argon: combined effects on ionization electron charge and scintillation light
R.Acciarri ; M.Antonello ; B.Baibussinov ; M.Baldo-Ceolin ; P.Benetti ; F.Calaprice ; E.Calligarich ; M.Cambiaghi ; N.Canci ; F.Carbonara ; F.Cavanna ; S. Centro ; A.G.Cocco ; F.Di Pompeo ; G.Fiorillo ; C.Galbiati ; V.Gallo ; L.Grandi ; G. Meng ; I.Modena ; C.Montanari ; O.Palamara ; L.Pandola ; F.Pietropaolo ; G.L.Raselli ; M.Roncadelli ; M.Rossella ; C.Rubbia ; E.Segreto ; A.M.Szelc ; F.Tortorici ; S.Ventura ; C.Vignoli ;
Date:	8 Apr 2008
Abstract:	A dedicated test of the effects of Oxygen contamination in liquid Argon has been performed at the INFN-Gran Sasso Laboratory (LNGS, Italy) within the WArP R&D program. Two detectors have been used: the WArP 2.3 lt prototype and a small (0.7 lt) dedicated detector, coupled with a system for the injection of controlled amounts of gaseous Oxygen. Purpose of the test with the 0.7 lt detector is to detect the reduction of the long-lived component lifetime of the Argon scintillation light emission at increasing O2 concentration. Data from the WArP prototype are used for determining the behavior of both the ionization electron lifetime and the scintillation long-lived component lifetime during the O2-purification process activated in closed loop during the acquisition run. The electron lifetime measurements allow to infer the O2 content of the Argon and correlate it with the long-lived scintillation lifetime data. The effect of Oxygen contamination on the scintillation light has been thus measured over a wide range of O2 concentration, spanning from about 10^-3 ppm up to about 10 ppm. The rate constant of the light quenching process induced by Oxygen in LAr has been found to be k’(O2)=0.54+-0.03 micros^-1 ppm^-1.
Source:	arXiv, 0804.1222
Services:	Forum \| Review \| PDF \| Favorites

No review found.

Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

ScienXe.org
» my Online CV
» Free

News, job offers and information for researchers and scientists:

home

contact

sitemap