Advanced high-performance large diameter Cs2HfCl6 (CHC) and mixed halides scintillator

Hawrami, R.; Ariesanti, E.; Buliga, V.; Matei, L.; Motakef, S.; Burger, A.

doi:10.1016/j.jcrysgro.2019.125473

Title: Advanced high-performance large diameter Cs₂HfCl₆ (CHC) and mixed halides scintillator

Abstract

This paper reports on successful growth and performance evaluation of two large diameter Cs₂HfCl₆ (CHC) and Cs₂HfCl₄Br₂ (CHCB), both recently developed scintillator crystals. The discovery of Cs₂HfCl₆ (CHC) as a scintillator has lately generated much interest in this material and its family, which belongs to the K₂PtCl₆ cubic crystal structure. CHC is an intrinsic scintillator that is non-hygroscopic (slightly deliquescent, i.e., slightly moisture sensitive but does not deteriorate much when left in air), has no self-radioactivity, provides excellent energy resolution, and has excellent non-proportionality. CHC has a moderate density of 3.9 g/cm³ and an effective atomic number of 58. Reported in this paper are transparent crack-free single crystal CHC and CHCB boules of one inch in diameter, both grown using the vertical Bridgman method. Samples retrieved from the boules, sized 23 mm × 30 mm and 23 mm × 26 mm, respectively, are characterized for their optical and scintillation properties. Energy resolutions of 3.5% and 3.7% (FWHM) at 662 keV, respectively, are reported. Light yields of 23,000 ph/MeV and 20,000 ph/MeV have been calculated for the large diameter CHC and CHCB crystals, respectively. Results comparable to previously reported results for smaller crystals have been obtained. Studies on decay time, non-proportionality,more »« less

Authors:

Hawrami, R. ^[1]; Ariesanti, E. ^[1]; Buliga, V. ^[1]; Matei, L. ^[1]; Motakef, S. ^[2]; Burger, A. ^[1]

Fisk Univ., Nashville, TN (United States)
CapeSym, Inc., Natick, MA (United States)

Publication Date:: Tue Dec 31 00:00:00 EST 2019

Research Org.:: CapeSym, Inc., Natick, MA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Engineering & Technology. Office of Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) Programs

OSTI Identifier:: 1802759

Alternate Identifier(s):: OSTI ID: 1591947

Grant/Contract Number:: SC0015733

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Crystal Growth

Additional Journal Information:: Journal Volume: 533; Journal ID: ISSN 0022-0248

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats


                    Hawrami, R., Ariesanti, E., Buliga, V., Matei, L., Motakef, S., and Burger, A. Advanced high-performance large diameter Cs2HfCl6 (CHC) and mixed halides scintillator.  United States: N. p., 2019. 
Web.  doi:10.1016/j.jcrysgro.2019.125473.

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                    Hawrami, R., Ariesanti, E., Buliga, V., Matei, L., Motakef, S., & Burger, A. Advanced high-performance large diameter Cs2HfCl6 (CHC) and mixed halides scintillator.  United States.  https://doi.org/10.1016/j.jcrysgro.2019.125473

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                    Hawrami, R., Ariesanti, E., Buliga, V., Matei, L., Motakef, S., and Burger, A. Tue .  
"Advanced high-performance large diameter Cs2HfCl6 (CHC) and mixed halides scintillator".  United States.  https://doi.org/10.1016/j.jcrysgro.2019.125473.  https://www.osti.gov/servlets/purl/1802759.

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@article{osti_1802759,

  title        = {Advanced high-performance large diameter Cs2HfCl6 (CHC) and mixed halides scintillator},

  author       = {Hawrami, R. and Ariesanti, E. and Buliga, V. and Matei, L. and Motakef, S. and Burger, A.},

  abstractNote = {This paper reports on successful growth and performance evaluation of two large diameter Cs2HfCl6 (CHC) and Cs2HfCl4Br2 (CHCB), both recently developed scintillator crystals. The discovery of Cs2HfCl6 (CHC) as a scintillator has lately generated much interest in this material and its family, which belongs to the K2PtCl6 cubic crystal structure. CHC is an intrinsic scintillator that is non-hygroscopic (slightly deliquescent, i.e., slightly moisture sensitive but does not deteriorate much when left in air), has no self-radioactivity, provides excellent energy resolution, and has excellent non-proportionality. CHC has a moderate density of 3.9 g/cm3 and an effective atomic number of 58. Reported in this paper are transparent crack-free single crystal CHC and CHCB boules of one inch in diameter, both grown using the vertical Bridgman method. Samples retrieved from the boules, sized 23 mm × 30 mm and 23 mm × 26 mm, respectively, are characterized for their optical and scintillation properties. Energy resolutions of 3.5% and 3.7% (FWHM) at 662 keV, respectively, are reported. Light yields of 23,000 ph/MeV and 20,000 ph/MeV have been calculated for the large diameter CHC and CHCB crystals, respectively. Results comparable to previously reported results for smaller crystals have been obtained. Studies on decay time, non-proportionality, as well as detector characterization are also reported.},

  doi          = {10.1016/j.jcrysgro.2019.125473},

  journal      = {Journal of Crystal Growth},

  number       = ,

  volume       = 533,

  place        = {United States},

  year         = {Tue Dec 31 00:00:00 EST 2019},

  month        = {Tue Dec 31 00:00:00 EST 2019}

}

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Works referenced in this record:

Crystal growth and scintillation performance of Cs2HfCl6 and Cs2HfCl4Br2
journal, February 2018

Lam, Stephanie; Guguschev, Christo; Burger, Arnold
Journal of Crystal Growth, Vol. 483
DOI: 10.1016/j.jcrysgro.2017.11.013

Performance of a Facility for Measuring Scintillator Non-Proportionality
journal, June 2008

Choong, Woon-Seng; Hull, Giulia; Moses, William W.
IEEE Transactions on Nuclear Science, Vol. 55, Issue 3
DOI: 10.1109/TNS.2008.922824

Cesium hafnium chloride: A high light yield, non-hygroscopic cubic crystal scintillator for gamma spectroscopy
journal, October 2015

Burger, Arnold; Rowe, Emmanuel; Groza, Michael
Applied Physics Letters, Vol. 107, Issue 14
DOI: 10.1063/1.4932570

Crystal data for Cs₂HfCl₆
journal, June 1976

Maniv, S.
Journal of Applied Crystallography, Vol. 9, Issue 3, p. 245-245
DOI: 10.1107/S0021889876011114

Improved growth and scintillation properties of intrinsic, non-hygroscopic scintillator Cs2HfCl6
journal, January 2020

Ariesanti, E.; Hawrami, R.; Burger, A.
Journal of Luminescence, Vol. 217
DOI: 10.1016/j.jlumin.2019.116784

Carrier Self-trapping and Luminescence in Intrinsically Activated Scintillator: Cesium Hafnium Chloride (Cs ₂ HfCl ₆ )
journal, May 2016

Kang, By.; Biswas, Koushik
The Journal of Physical Chemistry C, Vol. 120, Issue 22
DOI: 10.1021/acs.jpcc.6b02496

Preparation, structure and scintillation of cesium hafnium chloride bromide crystals
journal, March 2019

Rowe, E.; Goodwin, W. B.; Bhattacharya, P.
Journal of Crystal Growth, Vol. 509
DOI: 10.1016/j.jcrysgro.2018.08.033

Crystal growth and scintillation performance of Cs2HfCl6 and Cs2HfCl4Br2
journal, February 2018

Lam, Stephanie; Guguschev, Christo; Burger, Arnold
Journal of Crystal Growth, Vol. 483
DOI: 10.1016/j.jcrysgro.2017.11.013

Improved growth and scintillation properties of intrinsic, non-hygroscopic scintillator Cs2HfCl6
journal, January 2020

Ariesanti, E.; Hawrami, R.; Burger, A.
Journal of Luminescence, Vol. 217
DOI: 10.1016/j.jlumin.2019.116784

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Title: Advanced high-performance large diameter Cs2HfCl6 (CHC) and mixed halides scintillator

Abstract

Citation Formats

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