Volume 106, Number 3, May 2014
|Number of page(s)||5|
|Published online||12 May 2014|
Intense infrared scintillation of liquid Ar-Xe mixtures
1 Physik- Department E15, Technische Universität München - James-Franck-Straße 1, 85748 Garching, Germany
2 Physik- Department E12, Technische Universität München - James-Franck-Straße 1, 85748 Garching, Germany
3 Excitech GmbH - Branterei 33, 26419 Schortens, Germany
Received: 6 March 2014
Accepted: 14 April 2014
Intense infrared (IR) light emission from liquid Ar-Xe mixtures has been observed using 12 keV electron-beam excitation. The emission peaks at a wavelength of and the half-width of the emission band is . Maximum intensity has been found for a 10 ppm xenon admixture in liquid argon. The conversion efficiency of electron-beam power to IR light is about 1% (10000 photons per MeV electron energy deposited). A possible application of this intense IR emission for a new particle discrimination concept in liquid noble gas detectors is discussed. No light emission was found for perfectly purified liquid argon in the wavelength range from 0.5 to on the current level of sensitivity.
PACS: 29.40.Mc – Scintillation detectors / 61.25.Bi – Liquid noble gases / 78.30.cc – Inorganic liquids
© EPLA, 2014
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.