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Transient Phenomena in Scintillation Materials

  • G. TamulaitisEmail author
  • S. Nargelas
  • A. Vaitkevičius
  • M. Lucchini
  • E. Auffray
  • A. Fedorov
  • V. Mechinsky
  • M. Korjik
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 227)

Abstract

Time resolution becomes an increasingly important property of the scintillators to be exploited in radiation detectors for coming high-luminosity high-energy physics experiments and medical imaging applications. Multicomponent scintillators enable purposeful design of scintillation properties and, consequently, are attractive for fast radiation detection but suffer for the emission delay due to trapping of nonequilibrium carriers. Therefore, novel measurement techniques are required to characterize the timing properties for purposeful improvement of the scintillators. Here, the capabilities of the differential optical absorption technique, exploited in subpicosecond domain in pump and probe configuration, are introduced and the results obtained by application of this technique for studying the carrier dynamics in two prospective scintillators, garnet-type Gd3Al2Ga3O12 (GAGG) doped by cerium and codoped by magnesium and Ce-doped oxyorthosilicates LSO and LYSO, are presented. The importance of electron trapping for the timing properties of these scintillators is revealed.

Notes

Acknowledgements

The research has been carried out in line with the targets of the Crystal Clear Collaboration and was partially supported by COST Action TD1401 “Fast Advanced Scintillator Timing (FAST)”. The research at Vilnius University was supported by EU Social Fund grant 09.3.3-LMT-K-712-01-0013 via the Lithuanian Research Council. Authors thank Dr. O. Sidletskiy for providing nominally undoped GAGG.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • G. Tamulaitis
    • 1
    Email author
  • S. Nargelas
    • 1
  • A. Vaitkevičius
    • 1
  • M. Lucchini
    • 2
  • E. Auffray
    • 2
  • A. Fedorov
    • 3
  • V. Mechinsky
    • 3
  • M. Korjik
    • 3
  1. 1.Institute of Photonics and NanotechnologyVilnius UniversityVilniusLithuania
  2. 2.CERNGenevaSwitzerland
  3. 3.Institute for Nuclear Problems of Belarus State UniversityMinskBelarus

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