Distance dependent quenching and gamma-ray spectroscopy in tin-loaded polystyrene scintillators

Feng, Patrick L; Mengesha, Wondwosen; Anstey, Mitchell R.; Cordaro, Joseph Gabriel

doi:10.1109/TNS.2015.2510960

Title: Distance dependent quenching and gamma-ray spectroscopy in tin-loaded polystyrene scintillators

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Abstract

In this study, we report the synthesis and inclusion of rationally designed organotin compounds in polystyrene matrices as a route towards plastic scintillators capable of gamma-ray spectroscopy. Tin loading ratios of up to 15% w/w have been incorporated, resulting in photopeak energy resolution values as low as 10.9% for 662 keV gamma-rays. Scintillator constituents were selected based upon a previously reported distance-dependent quenching mechanism. Data obtained using UV-Vis and photoluminescence measurements are consistent with this phenomenon and are correlated with the steric and electronic properties of the respective organotin complexes. We also report fast scintillation decay behavior that is comparable to the quenched scintillators 0.5% trans-stilbene doped bibenzyl and the commercial plastic scintillator BC-422Q-1%. These observations are discussed in the context of practical considerations such as optical transparency, ease-of-preparation/scale-up, and total scintillator cost.

Authors:

Feng, Patrick L ^[1]; Mengesha, Wondwosen ^[1]; Anstey, Mitchell R. ^[1]; Cordaro, Joseph Gabriel ^[1]

Sandia National Lab. (SNL-CA), Livermore, CA (United States)

Publication Date:: Mon Feb 01 00:00:00 EST 2016

Research Org.:: Sandia National Lab. (SNL-CA), Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1251632

Report Number(s):: SAND-2015-5098J
Journal ID: ISSN 0018-9499; 594709

Grant/Contract Number:: AC04-94AL85000

Resource Type:: Accepted Manuscript

Journal Name:: IEEE Transactions on Nuclear Science

Additional Journal Information:: Journal Volume: 63; Journal Issue: 1; Journal ID: ISSN 0018-9499

Publisher:: Institute of Electrical and Electronics Engineers (IEEE)

Country of Publication:: United States

Language:: English

Subject:: 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; fluorescence spectroscopy; gamma-ray spectroscopy; organic scintillators; scintillators

Citation Formats


                    Feng, Patrick L, Mengesha, Wondwosen, Anstey, Mitchell R., and Cordaro, Joseph Gabriel. Distance dependent quenching and gamma-ray spectroscopy in tin-loaded polystyrene scintillators.  United States: N. p., 2016. 
Web.  doi:10.1109/TNS.2015.2510960.

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                    Feng, Patrick L, Mengesha, Wondwosen, Anstey, Mitchell R., & Cordaro, Joseph Gabriel. Distance dependent quenching and gamma-ray spectroscopy in tin-loaded polystyrene scintillators.  United States.  https://doi.org/10.1109/TNS.2015.2510960

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                    Feng, Patrick L, Mengesha, Wondwosen, Anstey, Mitchell R., and Cordaro, Joseph Gabriel. Mon .  
"Distance dependent quenching and gamma-ray spectroscopy in tin-loaded polystyrene scintillators".  United States.  https://doi.org/10.1109/TNS.2015.2510960.  https://www.osti.gov/servlets/purl/1251632.

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@article{osti_1251632,

  title        = {Distance dependent quenching and gamma-ray spectroscopy in tin-loaded polystyrene scintillators},

  author       = {Feng, Patrick L and Mengesha, Wondwosen and Anstey, Mitchell R. and Cordaro, Joseph Gabriel},

  abstractNote = {In this study, we report the synthesis and inclusion of rationally designed organotin compounds in polystyrene matrices as a route towards plastic scintillators capable of gamma-ray spectroscopy. Tin loading ratios of up to 15% w/w have been incorporated, resulting in photopeak energy resolution values as low as 10.9% for 662 keV gamma-rays. Scintillator constituents were selected based upon a previously reported distance-dependent quenching mechanism. Data obtained using UV-Vis and photoluminescence measurements are consistent with this phenomenon and are correlated with the steric and electronic properties of the respective organotin complexes. We also report fast scintillation decay behavior that is comparable to the quenched scintillators 0.5% trans-stilbene doped bibenzyl and the commercial plastic scintillator BC-422Q-1%. These observations are discussed in the context of practical considerations such as optical transparency, ease-of-preparation/scale-up, and total scintillator cost.},

  doi          = {10.1109/TNS.2015.2510960},

  journal      = {IEEE Transactions on Nuclear Science},

  number       = 1,

  volume       = 63,

  place        = {United States},

  year         = {Mon Feb 01 00:00:00 EST 2016},

  month        = {Mon Feb 01 00:00:00 EST 2016}

}

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