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Title: Enhanced spatial resolution of Eljen-204 plastic scintillators for use in rep-rated proton diagnostics

Abstract

A pixelated scintillator has been designed, fabricated, and tested using a laser-accelerated proton source for use in proton diagnostics at rep-rated laser facilities. The work presented here demonstrates the enhanced spatial resolution of thin, organic scintillators through a novel pixelation technique. Furthermore, experimental measurements using laser-generated protons incident onto 130 μm-thick scintillators indicate a >20% reduction in the scintillator point spread function (PSF) for the detectors tested. The best performing pixelated detector reduced the ~200 μm PSF of the stock material to ~150 μm. The fabrication technique may be tailored to reduce the pixel size and achieve higher spatial resolutions.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [2];  [3];  [1]; ORCiD logo [1];  [1];  [4]; ORCiD logo [5]
+ Show Author Affiliations
  1. General Atomics, San Diego, CA (United States)
  2. Univ. of Michigan, Ann Arbor, MI (United States). Center for Ultrafast Optical Science
  3. Science and Technology Facilities Council (STFC), Oxford (United Kingdom). Rutherford Appleton Lab. (RAL), Central Laser Facility
  4. Science and Technology Facilities Council (STFC), Oxford (United Kingdom). Rutherford Appleton Lab. (RAL), Central Laser Facility; Univ. of Strathclyde, Glasgow (United Kingdom)
  5. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES); USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1806414
Alternate Identifier(s):
OSTI ID: 1671145
Report Number(s):
LLNL-JRNL-818273
Journal ID: ISSN 0034-6748; 1028383; TRN: US2213124
Grant/Contract Number:  
AC52-07NA27344; SC0019076
Resource Type:
Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 91; Journal Issue: 10; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; electromagnetic pulse; radiography; imaging spectroscopy; image processing; scintillators; optical imaging; optical properties

Citation Formats

Manuel, M. J.-E., Tang, H., Russell, B. K., Willingale, L., Maksimchuk, A., Green, J. S., Alfonso, E. L., Jaquez, J., Carlson, L., Neely, D., and Ma, T. Enhanced spatial resolution of Eljen-204 plastic scintillators for use in rep-rated proton diagnostics. United States: N. p., 2020. Web. doi:10.1063/5.0014949.
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Manuel, M. J.-E., Tang, H., Russell, B. K., Willingale, L., Maksimchuk, A., Green, J. S., Alfonso, E. L., Jaquez, J., Carlson, L., Neely, D., & Ma, T. Enhanced spatial resolution of Eljen-204 plastic scintillators for use in rep-rated proton diagnostics. United States. https://doi.org/10.1063/5.0014949
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Manuel, M. J.-E., Tang, H., Russell, B. K., Willingale, L., Maksimchuk, A., Green, J. S., Alfonso, E. L., Jaquez, J., Carlson, L., Neely, D., and Ma, T. Thu . "Enhanced spatial resolution of Eljen-204 plastic scintillators for use in rep-rated proton diagnostics". United States. https://doi.org/10.1063/5.0014949. https://www.osti.gov/servlets/purl/1806414.
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@article{osti_1806414,
title = {Enhanced spatial resolution of Eljen-204 plastic scintillators for use in rep-rated proton diagnostics},
author = {Manuel, M. J.-E. and Tang, H. and Russell, B. K. and Willingale, L. and Maksimchuk, A. and Green, J. S. and Alfonso, E. L. and Jaquez, J. and Carlson, L. and Neely, D. and Ma, T.},
abstractNote = {A pixelated scintillator has been designed, fabricated, and tested using a laser-accelerated proton source for use in proton diagnostics at rep-rated laser facilities. The work presented here demonstrates the enhanced spatial resolution of thin, organic scintillators through a novel pixelation technique. Furthermore, experimental measurements using laser-generated protons incident onto 130 μm-thick scintillators indicate a >20% reduction in the scintillator point spread function (PSF) for the detectors tested. The best performing pixelated detector reduced the ~200 μm PSF of the stock material to ~150 μm. The fabrication technique may be tailored to reduce the pixel size and achieve higher spatial resolutions.},
doi = {10.1063/5.0014949},
journal = {Review of Scientific Instruments},
number = 10,
volume = 91,
place = {United States},
year = {Thu Oct 08 00:00:00 EDT 2020},
month = {Thu Oct 08 00:00:00 EDT 2020}
}
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Journal Article:
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Publisher's Version of Record
https://doi.org/10.1063/5.0014949
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