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

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.

doi:10.1016/j.mre.2017.05.002

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

Journal Article · Wed Jun 21 00:00:00 EDT 2017 · Matter and Radiation at Extremes

DOI:https://doi.org/10.1016/j.mre.2017.05.002· OSTI ID:1476672

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.

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. The coupled accelerator-laser facility will be the first of its kind and be capable of conducting unprecedented high-energy-density–physics experiments.

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Research Organization:: Univ. of Rochester, Rochester, NY (United States). Lab. for Laser Energetics

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0001944

OSTI ID:: 1476672

Alternate ID(s):: OSTI ID: 1375444

Journal Information:: Matter and Radiation at Extremes, Journal Name: Matter and Radiation at Extremes Journal Issue: 4 Vol. 2; ISSN 2468-2047

Publisher:: American Institute of PhysicsCopyright Statement

Country of Publication:: China

Language:: English

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