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Title: Bremsstrahlung Dose Yield for High-Intensity Short-Pulse Laser–Solid Experiments

A bremsstrahlung source term has been developed by the Radiation Protection (RP) group at SLAC National Accelerator Laboratory for high-intensity short-pulse laser–solid experiments between 10 17 and 10 22 W cm –2. This source term couples the particle-in-cell plasma code EPOCH and the radiation transport code FLUKA to estimate the bremsstrahlung dose yield from laser–solid interactions. EPOCH characterizes the energy distribution, angular distribution, and laser-to-electron conversion efficiency of the hot electrons from laser–solid interactions, and FLUKA utilizes this hot electron source term to calculate a bremsstrahlung dose yield (mSv per J of laser energy on target). The goal of this paper is to provide RP guidelines and hazard analysis for high-intensity laser facilities. In conclusion, a comparison of the calculated bremsstrahlung dose yields to radiation measurement data is also made.
Authors:
 [1] ;  [2] ;  [2] ;  [2]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States); Georgia Inst. of Technology, Atlanta, GA (United States)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Grant/Contract Number:
AC02-76SF00515
Type:
Accepted Manuscript
Journal Name:
Radiation Protection Dosimetry
Additional Journal Information:
Journal Volume: 175; Journal Issue: 3; Journal ID: ISSN 0144-8420
Publisher:
Oxford University Press
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
61 RADIATION PROTECTION AND DOSIMETRY
OSTI Identifier:
1374379

Liang, Taiee, Bauer, Johannes M., Liu, James C., and Rokni, Sayed H.. Bremsstrahlung Dose Yield for High-Intensity Short-Pulse Laser–Solid Experiments. United States: N. p., Web. doi:10.1093/rpd/ncw325.
Liang, Taiee, Bauer, Johannes M., Liu, James C., & Rokni, Sayed H.. Bremsstrahlung Dose Yield for High-Intensity Short-Pulse Laser–Solid Experiments. United States. doi:10.1093/rpd/ncw325.
Liang, Taiee, Bauer, Johannes M., Liu, James C., and Rokni, Sayed H.. 2016. "Bremsstrahlung Dose Yield for High-Intensity Short-Pulse Laser–Solid Experiments". United States. doi:10.1093/rpd/ncw325. https://www.osti.gov/servlets/purl/1374379.
@article{osti_1374379,
title = {Bremsstrahlung Dose Yield for High-Intensity Short-Pulse Laser–Solid Experiments},
author = {Liang, Taiee and Bauer, Johannes M. and Liu, James C. and Rokni, Sayed H.},
abstractNote = {A bremsstrahlung source term has been developed by the Radiation Protection (RP) group at SLAC National Accelerator Laboratory for high-intensity short-pulse laser–solid experiments between 1017 and 1022 W cm–2. This source term couples the particle-in-cell plasma code EPOCH and the radiation transport code FLUKA to estimate the bremsstrahlung dose yield from laser–solid interactions. EPOCH characterizes the energy distribution, angular distribution, and laser-to-electron conversion efficiency of the hot electrons from laser–solid interactions, and FLUKA utilizes this hot electron source term to calculate a bremsstrahlung dose yield (mSv per J of laser energy on target). The goal of this paper is to provide RP guidelines and hazard analysis for high-intensity laser facilities. In conclusion, a comparison of the calculated bremsstrahlung dose yields to radiation measurement data is also made.},
doi = {10.1093/rpd/ncw325},
journal = {Radiation Protection Dosimetry},
number = 3,
volume = 175,
place = {United States},
year = {2016},
month = {12}
}