Skip to main content
    • Aa
    • Aa
  • Get access
    Check if you have access via personal or institutional login
  • Cited by 3
  • Cited by
    This article has been cited by the following publications. This list is generated based on data provided by CrossRef.

    Kerisit, Sebastien Wang, Zhiguo Williams, Richard T. Grim, Joel Q. and Gao, Fei 2014. Kinetic Monte Carlo Simulations of Scintillation Processes in NaI(Tl). IEEE Transactions on Nuclear Science, Vol. 61, Issue. 2, p. 860.

    Wang, Zhiguo Williams, Richard T. Grim, Joel Q. Gao, Fei and Kerisit, Sebastien 2013. Kinetic Monte Carlo simulations of excitation density dependent scintillation in CsI and CsI(Tl). physica status solidi (b), Vol. 250, Issue. 8, p. 1532.

    Li, Qi Grim, Joel Q. Ucer, K. B. Burger, A. Bizarri, G. A. Moses, W. W. and Williams, R. T. 2012. Host structure dependence of light yield and proportionality in scintillators in terms of hot and thermalized carrier transport. physica status solidi (RRL) - Rapid Research Letters, Vol. 6, Issue. 8, p. 346.

  • MRS Proceedings, Volume 1341
  • January 2011, mrss11-1341-u08-02

Nonlinear quenching rates in SrI2 and CsI scintillator hosts

  • Joel Q. Grim (a1), Qi Li (a1), K.B. Ucer (a1), R.T. Williams (a1), A. Burger (a2), P. Bhattacharya (a2), E. Tupitsyn (a2), G. A. Bizarri (a3) and W.W. Moses (a3)
  • DOI:
  • Published online: 17 October 2011

Using 0.5 ps pulses of 5.9 eV light to excite electron-hole concentrations varied up to 2x1020 e-h/cm3 corresponding to energy deposition within electron tracks, we measure dipole-dipole quenching rate constants K2 in SrI2 and CsI. We previously reported determination of K2 directly from the time dependence of quenched STE luminescence in CsI. The nonlinear quenching rate decreases rapidly within a few tens of picoseconds as the host excitation density drops below the Förster threshold. In the present work, we measure the dependence of integrated light yield on excitation density in the activated scintillators SrI2:Eu2+ and CsI:Tl+. The “z-scan” method of yield vs. irradiance is applicable to a wider range of materials, e.g. when the quenching population is not the main light-emitting population. Furthermore, because of using an integrating sphere and photomultiplier for light detection, the signal-to-noise is substantially better than the time-resolved method using a streak camera. As a result, both 2nd and 3rd orders of quenching (dipole-dipole and Auger) can be distinguished. Detailed comparison of SrI2 and CsI is of fundamental importance to help understand why SrI2 achieves substantially better proportionality than CsI in scintillator applications. The laser measurements, in contrast to scintillation, allow evaluating the rate constants of nonlinear quenching in a population which has small enough spatial gradient to suppress the effect of carrier diffusion.

Linked references
Hide All

This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

[1]S. A. Payne , W. W. Moses , S. Sheets , L. Ahle , N. J. Cherepy , B. Sturm , S. Dazeley , private communication of manuscript to be published (2011); S. A. Payne , N. J. Cherepy , G. Hull , J. D. Valentine , W. W. Moses , and W.-S. Choong , IEEE Trans. Nucl. Sci. 56, 2506 (2009)

[2]Joel Q. Grim , Qi Li , K. B. Ucer , R. T. Williams , and W. W. Moses , Nucl. Instrum. Methods Phys. Res. A ; published online (2010), doi:10.1016/j.nima.2010.07.075.

[3]R. T. Williams , J. Q. Grim , Qi Li , K. B. Ucer , and W. W. Moses , Phys. Status Solidi B, 248, 426 (2011).

[4]G. Bizarri , W.W. Moses , J. Singh , A.N. Vasil’ev , and R.T. Williams , J. Appl. Phys. 105, 044507–0441 (2009).

[5]V. Nagirnyi , S. Dolgov , R. Grigonis , M. Kirm , L.L. Nagornaya , V. Savikhin , V. Sirutkaitis , S. Vielhauer , A. Vasil’ev . IEEE Trans. Nucl. Sci. 57, 1182 (2010).

[6]R. T. Williams , K. B. Ucer , Joel, Q. Grim , K. C. Lipke , L. M. Trefilova , and W. W. Moses , IEEE Trans. Nucl. Sci. 57, 1187 (2010).

[7]Qi Li , Joel Q. Grim , R.T. Williams , G. A. Bizarri , and W. W. Moses , J. Appl. Phys. 109, 123716 (2011); doi:10.1063/1.3600070

[8]W. Setyawan , R. M. Gaume , R. S. Feigelson , and S. Curtarolo , IEEE Trans. Nucl. Sci., 56, 2989 (2009).

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
Please enter your name
Please enter a valid email address
Who would you like to send this to? *