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Title: A semi-analytic model of gas-puff liner-on-target magneto-inertial fusion

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.5086056· OSTI ID:1574129
ORCiD logo [1];  [2];  [1]; ORCiD logo [1];  [3];  [1];  [1]
  1. Univ. of California, San Diego, La Jolla, CA (United States). Center for Energy Research
  2. Magneto-Inertial Fusion Technologies, Inc., Irvine, CA (United States)
  3. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Nuclear Engineering and Radiological Sciences

A semi-analytic model is presented for the gas-puff Staged Z-pinch, a magneto-inertial fusion concept in which an annular gas-puff liner implodes onto a deuterium or deuterium-tritium target. The one-dimensional model is a modification of the semi-analytic model for MagLIF (SAMM) [R. D. McBride and S. A. Slutz, Phys. Plasmas 22, 052708 (2015)], that addresses the different set of physics inherent to a Staged Z-pinch implosion: azimuthal magnetic field transport, shock heating of the fuel, separate ion and electron energy equations, and a simplified radiation model that approximates the liner transition from optically thin to optically thick. Following the explanation of the model, three sample problems are presented: first, a Staged Z-pinch implosion on the Zebra driver (1 MA, 100 ns) is modeled and compared with the HYDRA simulation results; second, the MagLIF point design is modeled and compared to the original simulation results [S. A. Slutz et al., Phys. Plasmas 17, 056303 (2010)] and results from SAMM; and third, we conduct a simple parameter scan and scaling study for a Staged Z-pinch implosion on the LTD-III driver (0.8 MA, 160 ns). Here, some agreement with HYDRA and SAMM is obtained, and deuterium-deuterium (DD) neutron yield scaling with current is consistent with other existing models and HYDRA simulations.

Research Organization:
Univ. of California, San Diego, La Jolla, CA (United States)
Sponsoring Organization:
USDOE Advanced Research Projects Agency - Energy (ARPA-E); USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0003842; 00000569
OSTI ID:
1574129
Alternate ID(s):
OSTI ID: 1502260
Journal Information:
Physics of Plasmas, Vol. 26, Issue 3; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

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Cited By (2)

Retrospective of the ARPA-E ALPHA Fusion Program journal October 2019
Retrospective of the ARPA-E ALPHA fusion program text January 2019

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