Infrared scintillation and emission in gases, liquids and crystals

by G. Carugno (INFN-Padova)

Friday 25 Feb 2000, 11:00 → 14:00 Europe/Zurich

CERN

We report about experimental evidence of infrared scintillation in gaseous, liquids and crystals samples. We firstly studied noble gases at room temperature and near atmospheric pressure in the wavelength range between 0.7 and 1.8 micron. Argon gas emits infrared photons when irradiated by a proton beam. Ionisation electrons also induce such emission when they drift in the medium. The spectrum is characterised by lines corresponding to transitions between atomic excited states. Also Xenon gas scintillates in the infrared region with a light yield higher than 2*10⁴ photons/Mev. Protons induce infrared scintillation in liquid argon and xenon too. We irradiated many inorganic crystals and studied their infrared emission between 0.8 and 15 micron. Some samples present significant infrared scintillation and some spectra will be presented.

Organiser(s): Rui Ribeiro /EP Division

Note: Please note the new day of the week for the EP Seminars

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