Heidelberg 2015 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 4: Instrumentation 3
HK 4.6: Vortrag
Montag, 23. März 2015, 15:45–16:00, M/HS4
Radiation damage and recovery of medium heavy and light inorganic crystalline, glass and glass ceramics materials after irradiation with 150 MeV protons and 1.2 MeV gamma-rays — K.T. Brinkman1, A. Borisevich2, •V. Dormenev1, V. Kalinov3, M. Korjik2, D. Kozlov2, M. Kavatsyuk4, R.W. Novotny1, A. Voitovich3, and H.-G. Zaunick1 — 1II. Physikalisches Institut JLU Giessen, Germany — 2INP BSU, Minsk, Belarus — 3Institute of Physics of National Academy of Science, Minsk, Belarus — 4KVI-CART, University Groningen, Netherlands
Further concepts of the detectors at HEP experiments will require using cheap, capable for a mass production and radiation hard materials, especially for application at collider experiments. A set of samples with volume 1-2 cm3 of the middle light and light materials: crystalline BaF2, Y3Al5O12: Ce, Y3Al5O12: Pr, Lu3Al5O12: Ce, LiF and newly developed glass and glass ceramics DSB: Ce and DSL: Ce were irradiated with gamma-quanta with absorbed dose 100 Gy and 150 MeV protons up to fluence 5x10^13 p/cm2. Here we report results of the comparison of the optical transmission damage and recovery after different types of irradiation. A significant acceleration of the induced absorption recovery is observed at the DSB: Ce samples illuminated with visible and IR light. This effect is similar to one observed by us in PWO. It indicates that radiation induced absorption in DSB: Ce scintillation material can be retained at the acceptable level by stimulation with light at the conditions of a strong irradiation environment of the collider experiments.