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Stimulated recovery of the optical transmission of PbWO4scintillation crystals for electromagnetic calorimeters after radiation damage

Authors
Journal
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
0168-9002
Publisher
Elsevier
Publication Date
Volume
623
Issue
3
Identifiers
DOI: 10.1016/j.nima.2010.08.092
Keywords
  • Electromagnetic Calorimetry
  • Lead Tungstate Scintillation Crystal
  • Radiation Damage
  • Light Yield
  • Optical Transmission
Disciplines
  • Physics

Abstract

Abstract In this paper we describe the phenomenon of the stimulated recovery of radiation damage in lead tungstate scintillation crystals achieved via illumination by visible and infrared light. It allows fast and efficient in-situ recovery of the optical transmission either during beam-off periods or on-line during data accumulation. The application can substantially improve or extend the running period of the experiment by keeping the damage at a tolerable level.

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