Details

Autor(en) / Beteiligte

• Khodyuk, Ivan V
• Alekhin, Mikhail S
• De Haas, Johan TM
• Dorenbos, Pieter

Titel

Improved scintillation proportionality and energy resolution of LaBr sub(3):Ce at 80 K

Ist Teil von

• Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 2011-06, Vol.642 (1), p.75-77

Erscheinungsjahr

2011

Quelle

Elsevier ScienceDirect Journals

Beschreibungen/Notizen

• Using highly monochromatic synchrotron X-rays in the energy range from 10.5 to 100 keV, the temperature dependence of the photon nonproportional response and energy resolution of LaBr sub(3) scintillators doped with 5% Ce super(3+) were studied at 80, 295, and 450 K. Improvement of the proportionality and better energy resolution was observed on lowering the temperature. This effect suggests that the already outstanding energy resolution of LaBr sub(3):Ce can be improved even further. It may also provide new clues to better understanding of the processes that cause nonproportionality of inorganic scintillator response. Temperature dependence of nonproportionality of LaBr sub(3):Ce was discovered Improvement of energy resolution was observed on lowering the temperature Outstanding energy resolution of LaBr sub(3):Ce scintillator can be improved even further Parameters responsible for nonproportionality of LaBr sub(3):Ce depend on temperature Our results demonstrate that nonproportionality is a property that can be improved.