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Title: Experimental demonstration of fusion-relevant conditions in magnetized liner inertial fusion

This Letter presents results from the first fully integrated experiments testing the magnetized liner inertial fusion concept [S.A. Slutz et al., Phys. Plasmas 17, 056303 (2010)], in which a cylinder of deuterium gas with a preimposed axial magnetic field of 10 T is heated by Z beamlet, a 2.5 kJ, 1 TW laser, and magnetically imploded by a 19 MA current with 100 ns rise time on the Z facility. Despite a predicted peak implosion velocity of only 70 km/s, the fuel reaches a stagnation temperature of approximately 3 keV, with T e ≈ T i, and produces up to 2e12 thermonuclear DD neutrons. In this study, X-ray emission indicates a hot fuel region with full width at half maximum ranging from 60 to 120 μm over a 6 mm height and lasting approximately 2 ns. The number of secondary deuterium-tritium neutrons observed was greater than 10 10, indicating significant fuel magnetization given that the estimated radial areal density of the plasma is only 2 mg/cm 2.
Authors:
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  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Report Number(s):
SAND-2014-4519J
Journal ID: ISSN 0031-9007; PRLTAO; 520367
Grant/Contract Number:
AC04-94AL85000
Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 113; Journal Issue: 15; Related Information: Proposed for publication in Physical Review Letters.; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
OSTI Identifier:
1146936
Alternate Identifier(s):
OSTI ID: 1181101

Gomez, Matthew R., Slutz, Stephen A.., Sefkow, Adam B., Sinars, Daniel B., Hahn, Kelly D., Hansen, Stephanie B., Harding, Eric C., Knapp, Patrick F., Schmit, Paul F., Jennings, Christopher A., Awe, Thomas James, Geissel, Matthias, Rovang, Dean C., Chandler, Gordon A., Cooper, Gary Wayne, Cuneo, Michael Edward, Harvey-Thompson, Adam James, Herrmann, Mark, Hess, M. H., Johns, Owen, Lamppa, Derek C., Martin, Matthew R., McBride, Ryan D., Peterson, Kyle J., Porter, John L., Robertson, Grafton Kincannon, Rochau, Gregory A., Ruiz, Carlos L., Savage, Mark E., Smith, Ian C., Stygar, William A., and Vesey, Roger A.. Experimental demonstration of fusion-relevant conditions in magnetized liner inertial fusion. United States: N. p., Web. doi:10.1103/PhysRevLett.113.155003.
Gomez, Matthew R., Slutz, Stephen A.., Sefkow, Adam B., Sinars, Daniel B., Hahn, Kelly D., Hansen, Stephanie B., Harding, Eric C., Knapp, Patrick F., Schmit, Paul F., Jennings, Christopher A., Awe, Thomas James, Geissel, Matthias, Rovang, Dean C., Chandler, Gordon A., Cooper, Gary Wayne, Cuneo, Michael Edward, Harvey-Thompson, Adam James, Herrmann, Mark, Hess, M. H., Johns, Owen, Lamppa, Derek C., Martin, Matthew R., McBride, Ryan D., Peterson, Kyle J., Porter, John L., Robertson, Grafton Kincannon, Rochau, Gregory A., Ruiz, Carlos L., Savage, Mark E., Smith, Ian C., Stygar, William A., & Vesey, Roger A.. Experimental demonstration of fusion-relevant conditions in magnetized liner inertial fusion. United States. doi:10.1103/PhysRevLett.113.155003.
Gomez, Matthew R., Slutz, Stephen A.., Sefkow, Adam B., Sinars, Daniel B., Hahn, Kelly D., Hansen, Stephanie B., Harding, Eric C., Knapp, Patrick F., Schmit, Paul F., Jennings, Christopher A., Awe, Thomas James, Geissel, Matthias, Rovang, Dean C., Chandler, Gordon A., Cooper, Gary Wayne, Cuneo, Michael Edward, Harvey-Thompson, Adam James, Herrmann, Mark, Hess, M. H., Johns, Owen, Lamppa, Derek C., Martin, Matthew R., McBride, Ryan D., Peterson, Kyle J., Porter, John L., Robertson, Grafton Kincannon, Rochau, Gregory A., Ruiz, Carlos L., Savage, Mark E., Smith, Ian C., Stygar, William A., and Vesey, Roger A.. 2014. "Experimental demonstration of fusion-relevant conditions in magnetized liner inertial fusion". United States. doi:10.1103/PhysRevLett.113.155003. https://www.osti.gov/servlets/purl/1146936.
@article{osti_1146936,
title = {Experimental demonstration of fusion-relevant conditions in magnetized liner inertial fusion},
author = {Gomez, Matthew R. and Slutz, Stephen A.. and Sefkow, Adam B. and Sinars, Daniel B. and Hahn, Kelly D. and Hansen, Stephanie B. and Harding, Eric C. and Knapp, Patrick F. and Schmit, Paul F. and Jennings, Christopher A. and Awe, Thomas James and Geissel, Matthias and Rovang, Dean C. and Chandler, Gordon A. and Cooper, Gary Wayne and Cuneo, Michael Edward and Harvey-Thompson, Adam James and Herrmann, Mark and Hess, M. H. and Johns, Owen and Lamppa, Derek C. and Martin, Matthew R. and McBride, Ryan D. and Peterson, Kyle J. and Porter, John L. and Robertson, Grafton Kincannon and Rochau, Gregory A. and Ruiz, Carlos L. and Savage, Mark E. and Smith, Ian C. and Stygar, William A. and Vesey, Roger A.},
abstractNote = {This Letter presents results from the first fully integrated experiments testing the magnetized liner inertial fusion concept [S.A. Slutz et al., Phys. Plasmas 17, 056303 (2010)], in which a cylinder of deuterium gas with a preimposed axial magnetic field of 10 T is heated by Z beamlet, a 2.5 kJ, 1 TW laser, and magnetically imploded by a 19 MA current with 100 ns rise time on the Z facility. Despite a predicted peak implosion velocity of only 70 km/s, the fuel reaches a stagnation temperature of approximately 3 keV, with Te ≈ Ti, and produces up to 2e12 thermonuclear DD neutrons. In this study, X-ray emission indicates a hot fuel region with full width at half maximum ranging from 60 to 120 μm over a 6 mm height and lasting approximately 2 ns. The number of secondary deuterium-tritium neutrons observed was greater than 1010, indicating significant fuel magnetization given that the estimated radial areal density of the plasma is only 2 mg/cm2.},
doi = {10.1103/PhysRevLett.113.155003},
journal = {Physical Review Letters},
number = 15,
volume = 113,
place = {United States},
year = {2014},
month = {10}
}