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17 March 2023 Recent laser performance improvements and latest results at the National Ignition Facility
Jean-Michel G. Di Nicola, Tayyab Suratwala, Lawrence Pelz, John Heebner, David Alessi, Anumeha Bhasker, Tiziana Bond, Mark Bowers, Gordon Brunton, Brandon Buckley, Alicia Calonico Soto, Wren Carr, Leyen Chang, Jason Chou, Simon Cohen, David Cross, Rich Deveno, Peter Devore, Michael Erickson, Catalin Filip, Nathan Gottesman, Apurva Gowda, Dan Kalantar, Abe Handler, Vincent Hernandez, Sandrine Herriot, Christopher Kinsella, Tom Lanier, Doug Larson, Brian MacGowan, Samuel McLaren, Ken Manes, Kathleen McCandless, Christopher Miller, Marcus Monticelli, Ryan Muir, Mario Ordonez, Alan Pao, Jordan Penner, Travis Petersen, Shahida Rana, Brett Raymond, River Aden, Nathan Ruiz, Sam Schrauth, Stanley Sommer, Mary Spaeth, Christopher Stolz, Diana VanBlarcom, Bruno Van Wonterghem, Alexander Wargo, Lei Wang, Paul Wegner, Brian Welday, Pam Whitman, Nan Wong
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Proceedings Volume PC12401, High Power Lasers for Fusion Research VII; PC1240103 (2023) https://doi.org/10.1117/12.2655251
Event: SPIE LASE, 2023, San Francisco, California, United States
Abstract
The National Ignition Facility (NIF) at Lawrence Livermore National Laboratory contains a 192-beam 4.2 MJ neodymium glass laser (around 1053 nm or 1w) that is frequency converted to 351nm light or 3w. It was built to access the extreme high energy density conditions needed to support the nation’s nuclear stockpile in the absence of further underground nuclear tests, including studying Inertial Confinement Fusion (ICF) and ignition in the laboratory. Over the last year, important results have been obtained demonstrated a fusion yield of 1.35MJ with 1.9MJ of laser energy (and 440 TW power) injected in the target, bringing the NIF to the threshold of ignition [2-3]. As the yield curve near ignition is steep, the laser performance team has focused on providing improved power accuracy and precision (better shot-to-shot reproducibility) with a high-fidelity pulse shaping system (HiFiPS), and also on extending the NIF operating power and energy space by 15% to 2.2MJ and 500TW.
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Jean-Michel G. Di Nicola, Tayyab Suratwala, Lawrence Pelz, John Heebner, David Alessi, Anumeha Bhasker, Tiziana Bond, Mark Bowers, Gordon Brunton, Brandon Buckley, Alicia Calonico Soto, Wren Carr, Leyen Chang, Jason Chou, Simon Cohen, David Cross, Rich Deveno, Peter Devore, Michael Erickson, Catalin Filip, Nathan Gottesman, Apurva Gowda, Dan Kalantar, Abe Handler, Vincent Hernandez, Sandrine Herriot, Christopher Kinsella, Tom Lanier, Doug Larson, Brian MacGowan, Samuel McLaren, Ken Manes, Kathleen McCandless, Christopher Miller, Marcus Monticelli, Ryan Muir, Mario Ordonez, Alan Pao, Jordan Penner, Travis Petersen, Shahida Rana, Brett Raymond, River Aden, Nathan Ruiz, Sam Schrauth, Stanley Sommer, Mary Spaeth, Christopher Stolz, Diana VanBlarcom, Bruno Van Wonterghem, Alexander Wargo, Lei Wang, Paul Wegner, Brian Welday, Pam Whitman, and Nan Wong "Recent laser performance improvements and latest results at the National Ignition Facility", Proc. SPIE PC12401, High Power Lasers for Fusion Research VII, PC1240103 (17 March 2023); https://doi.org/10.1117/12.2655251
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KEYWORDS
National Ignition Facility
Fusion energy
Laser energy
Laser systems engineering
Neodymium glass lasers
Plasma
Pulse shaping
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