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Scintillation materials performance. Fundamental and practical limits

  • Date February 2, 2015
  • Hour 9 am
  • Room GSSI Main Lecture Hall
  • Speaker A.Gektin (Institute for Scintillation Materials, Kharkov, Ukraine)

Abstract
The presentation relates to analysis of current status of scintillators search and development. Scintillation yield for some new materials is very close to the fundamental limits of radiative energy relaxation, but it is not clear if some additional resources available (transfer from phonon and defects channels to luminescence).

Current report covers new data of the track simulation and evaluation of e-h relaxation losses in scintillation materials. At the same time practical limits (like crystal purity, activator concentration/solubility, luminescence quenching decrease and so on) for the “optimal” scintillator technology will be review as well.

The final part of review is devoted to the physical studies in favor of the more efficient scintillator development. It includes both the search of new crystal compositions and improvement (purification, co-doping) of conventional scintillation materials.