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Title: Conceptual design of a 15-TW pulsed-power accelerator for high-energy-density–physics experiments

Abstract

We have developed a conceptual design of a 15-TW pulsed-power accelerator based on the linear-transformer-driver (LTD) architecture described by Stygar [W. A. Stygar et al., Phys. Rev. ST Accel. Beams 18, 110401 (2015)]. The driver will allow multiple, high-energy-density experiments per day in a university environment and, at the same time, will enable both fundamental and integrated experiments that are scalable to larger facilities. In this design, many individual energy storage units (bricks), each composed of two capacitors and one switch, directly drive the target load without additional pulse compression. Ten LTD modules in parallel drive the load. Each module consists of 16 LTD cavities connected in series, where each cavity is powered by 22 bricks connected in parallel. This design stores up to 2.75 MJ and delivers up to 15 TW in 100 ns to the constant-impedance, water-insulated radial transmission lines. The transmission lines in turn deliver a peak current as high as 12.5 MA to the physics load. To maximize its experimental value and flexibility, the accelerator is coupled to a modern, multibeam laser facility (four beams with up to 5 kJ in 10 ns and one beam with up to 2.6 kJ in 100 ps or less)more » that can provide auxiliary heating of the physics load. The lasers also enable advanced diagnostic techniques such as x-ray Thomson scattering and multiframe and three-dimensional radiography. In conclusion, the coupled accelerator-laser facility will be the first of its kind and be capable of conducting unprecedented high-energy-density-physics experiments.« less

Authors:
 [1];  [1];  [1];  [1];  [2];  [2];  [1];  [2];  [2]
  1. Univ. of Rochester, Rochester, NY (United States). Lab. for Laser Energetics
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Univ. of Rochester, Rochester, NY (United States). Lab. for Laser Energetics
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1476672
Alternate Identifier(s):
OSTI ID: 1375444
Grant/Contract Number:  
NA0001944
Resource Type:
Journal Article: Published Article
Journal Name:
Matter and Radiation at Extremes
Additional Journal Information:
Journal Volume: 2; Journal Issue: 4; Journal ID: ISSN 2468-080X
Publisher:
Science and Technology Information Center, China Academy of Engineering Physics; Elsevier
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION; pulsed power accelerator; high energy density physics; conceptual design

Citation Formats

Spielman, R. B., Froula, D. H., Brent, G., Campbell, E. M., Reisman, D. B., Savage, M. E., Shoup, III, M. J., Stygar, W. A., and Wisher, M. L.. Conceptual design of a 15-TW pulsed-power accelerator for high-energy-density–physics experiments. United States: N. p., 2017. Web. doi:10.1016/j.mre.2017.05.002.
Spielman, R. B., Froula, D. H., Brent, G., Campbell, E. M., Reisman, D. B., Savage, M. E., Shoup, III, M. J., Stygar, W. A., & Wisher, M. L.. Conceptual design of a 15-TW pulsed-power accelerator for high-energy-density–physics experiments. United States. doi:10.1016/j.mre.2017.05.002.
Spielman, R. B., Froula, D. H., Brent, G., Campbell, E. M., Reisman, D. B., Savage, M. E., Shoup, III, M. J., Stygar, W. A., and Wisher, M. L.. Wed . "Conceptual design of a 15-TW pulsed-power accelerator for high-energy-density–physics experiments". United States. doi:10.1016/j.mre.2017.05.002.
@article{osti_1476672,
title = {Conceptual design of a 15-TW pulsed-power accelerator for high-energy-density–physics experiments},
author = {Spielman, R. B. and Froula, D. H. and Brent, G. and Campbell, E. M. and Reisman, D. B. and Savage, M. E. and Shoup, III, M. J. and Stygar, W. A. and Wisher, M. L.},
abstractNote = {We have developed a conceptual design of a 15-TW pulsed-power accelerator based on the linear-transformer-driver (LTD) architecture described by Stygar [W. A. Stygar et al., Phys. Rev. ST Accel. Beams 18, 110401 (2015)]. The driver will allow multiple, high-energy-density experiments per day in a university environment and, at the same time, will enable both fundamental and integrated experiments that are scalable to larger facilities. In this design, many individual energy storage units (bricks), each composed of two capacitors and one switch, directly drive the target load without additional pulse compression. Ten LTD modules in parallel drive the load. Each module consists of 16 LTD cavities connected in series, where each cavity is powered by 22 bricks connected in parallel. This design stores up to 2.75 MJ and delivers up to 15 TW in 100 ns to the constant-impedance, water-insulated radial transmission lines. The transmission lines in turn deliver a peak current as high as 12.5 MA to the physics load. To maximize its experimental value and flexibility, the accelerator is coupled to a modern, multibeam laser facility (four beams with up to 5 kJ in 10 ns and one beam with up to 2.6 kJ in 100 ps or less) that can provide auxiliary heating of the physics load. The lasers also enable advanced diagnostic techniques such as x-ray Thomson scattering and multiframe and three-dimensional radiography. In conclusion, the coupled accelerator-laser facility will be the first of its kind and be capable of conducting unprecedented high-energy-density-physics experiments.},
doi = {10.1016/j.mre.2017.05.002},
journal = {Matter and Radiation at Extremes},
number = 4,
volume = 2,
place = {United States},
year = {Wed Jun 21 00:00:00 EDT 2017},
month = {Wed Jun 21 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.mre.2017.05.002

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