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Title: Evolution of Gas Cell Targets for Magnetized Liner Inertial Fusion Experiments at the Sandia National Laboratories PECOS Test Facility

Z-Beamlet (ZBL) experiments conducted at the PECOS test facility at Sandia National Laboratories (SNL) investigated the nonlinear processes in laser plasma interaction (or laserplasma instabilities LPI) that complicate the deposition of laser energy by enhanced absorption, backscatter, filamentation and beam-spray that can occur in large-scale laser-heated gas cell targets. These targets and experiments were designed to provide better insight into the physics of the laser preheat stage of the Magnetized Liner Inertial Fusion (MagLIF) scheme being tested on the SNL Z-machine. The experiments aim to understand the tradeoffs between laser spot size, laser pulse shape, laser entrance hole (LEH) window thickness, and fuel density for laser preheat. Gas cell target design evolution and fabrication adaptations to accommodate the evolving experiment and scientific requirements are also described in this paper.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [3] ;  [3] ;  [3]
  1. General Atomics, San Diego, CA (United States)
  2. Luxel Corp., Friday Harbor, WA (United States)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Grant/Contract Number:
NA0001808
Type:
Accepted Manuscript
Journal Name:
Fusion Science and Technology
Additional Journal Information:
Journal Volume: 73; Journal Issue: 3; Journal ID: ISSN 1536-1055
Publisher:
American Nuclear Society
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); General Atomics, San Diego, CA (United States)
Sponsoring Org:
USDOE Office of Nuclear Energy (NE)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 42 ENGINEERING; Gas cell targets; Z-beamlet; magnetized liner inertial fusion
OSTI Identifier:
1438486

Paguio, R. R., Smith, G. E., Taylor, J. L., Tomlinson, K., Holt, R. R., Tatum, W. D., Farrell, M. P., Betcher, J., Harvey-Thompson, A., Geissel, M., Kellogg, J., and Peterson, K.. Evolution of Gas Cell Targets for Magnetized Liner Inertial Fusion Experiments at the Sandia National Laboratories PECOS Test Facility. United States: N. p., Web. doi:10.1080/15361055.2017.1387455.
Paguio, R. R., Smith, G. E., Taylor, J. L., Tomlinson, K., Holt, R. R., Tatum, W. D., Farrell, M. P., Betcher, J., Harvey-Thompson, A., Geissel, M., Kellogg, J., & Peterson, K.. Evolution of Gas Cell Targets for Magnetized Liner Inertial Fusion Experiments at the Sandia National Laboratories PECOS Test Facility. United States. doi:10.1080/15361055.2017.1387455.
Paguio, R. R., Smith, G. E., Taylor, J. L., Tomlinson, K., Holt, R. R., Tatum, W. D., Farrell, M. P., Betcher, J., Harvey-Thompson, A., Geissel, M., Kellogg, J., and Peterson, K.. 2017. "Evolution of Gas Cell Targets for Magnetized Liner Inertial Fusion Experiments at the Sandia National Laboratories PECOS Test Facility". United States. doi:10.1080/15361055.2017.1387455. https://www.osti.gov/servlets/purl/1438486.
@article{osti_1438486,
title = {Evolution of Gas Cell Targets for Magnetized Liner Inertial Fusion Experiments at the Sandia National Laboratories PECOS Test Facility},
author = {Paguio, R. R. and Smith, G. E. and Taylor, J. L. and Tomlinson, K. and Holt, R. R. and Tatum, W. D. and Farrell, M. P. and Betcher, J. and Harvey-Thompson, A. and Geissel, M. and Kellogg, J. and Peterson, K.},
abstractNote = {Z-Beamlet (ZBL) experiments conducted at the PECOS test facility at Sandia National Laboratories (SNL) investigated the nonlinear processes in laser plasma interaction (or laserplasma instabilities LPI) that complicate the deposition of laser energy by enhanced absorption, backscatter, filamentation and beam-spray that can occur in large-scale laser-heated gas cell targets. These targets and experiments were designed to provide better insight into the physics of the laser preheat stage of the Magnetized Liner Inertial Fusion (MagLIF) scheme being tested on the SNL Z-machine. The experiments aim to understand the tradeoffs between laser spot size, laser pulse shape, laser entrance hole (LEH) window thickness, and fuel density for laser preheat. Gas cell target design evolution and fabrication adaptations to accommodate the evolving experiment and scientific requirements are also described in this paper.},
doi = {10.1080/15361055.2017.1387455},
journal = {Fusion Science and Technology},
number = 3,
volume = 73,
place = {United States},
year = {2017},
month = {12}
}