Volume 91, Number 6, September 2010
|Number of page(s)||5|
|Published online||13 October 2010|
The scintillation of liquid argon
Physik Department E12, Technische Universität München - James-Franck-Straße 1, D-85748 Garching, Germany, EU
2 Physik Department E15, Technische Universität München - James-Franck-Straße 1, D-85748 Garching, Germany, EU
3 OPTIMARE Analytik GmbH & Co. KG - Emsstr. 20, D-26382 Wilhelmshaven, Germany, EU
Accepted: 14 September 2010
A spectroscopic study of liquid argon from the vacuum ultraviolet at 110 nm to 1000 nm is presented. Excitation was performed using continuous and pulsed 12 keV electron beams. The emission is dominated by the analogue of the so-called 2nd excimer continuum. Various additional emission features were found. The time structure of the light emission has been measured for a set of well-defined wavelength positions. The results help to interpret literature data in the context of liquid rare-gas detectors in which the wavelength information is lost due to the use of wavelength shifters.
PACS: 29.40.Mc – Scintillation detectors / 33.20.Ni – Vacuum ultraviolet spectra / 61.25.Bi – Liquid noble gases
© EPLA, 2010
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