| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1822811 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2013 | 7 Pages |
Irradiation damage of undoped and low Ce doped lutetium oxyorthosilicate has been investigated. Crystals were irradiated with both a 60Co γ-quanta source with an absorbed dose of 2000 Gy and, at CERN PS, a high-rate 24 GeV proton beam with a fluence of ∼3.6×1013 p/cm2. Both irradiations produced a similar set of induced absorption bands. However, a shift of the fundamental absorption spectrum cutoff appears after proton irradiation, but not in the case of the γ-irradiation. The observed shift of the band edge in the transmission spectrum following proton irradiation in lutetium oxyorthosilicate crystals indicates that this phenomenon is a general property of heavy crystalline materials. A possible proton-induced transmission damage mechanism is discussed.
