Demonstration of improved laser preheat with a cryogenically cooled magnetized liner inertial fusion platform.

Autor:	Harvey-Thompson AJ; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Geissel M; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Crabtree JA; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Weis MR; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Gomez MR; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Fein JR; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Lewis WE; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Ampleford DJ; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Awe TJ; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Chandler GA; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Galloway BR; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Hansen SB; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Hanson J; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Harding EC; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Jennings CA; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Kimmel M; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Knapp PF; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Mangan MA; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Maurer A; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Paguio RR; General Atomics, San Diego, California 92121, USA., Perea L; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Peterson KJ; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Porter JL; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Rambo PK; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Robertson GK; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Rochau GA; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Ruiz DE; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Shores JE; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Slutz SA; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Smith GE; General Atomics, San Diego, California 92121, USA., Smith IC; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Speas CS; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., Yager-Elorriaga DA; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA., York A; Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA.
Jazyk:	angličtina
Zdroj:	The Review of scientific instruments [Rev Sci Instrum] 2023 May 01; Vol. 94 (5).
DOI:	10.1063/5.0142587
Abstrakt:	We report on progress implementing and testing cryogenically cooled platforms for Magnetized Liner Inertial Fusion (MagLIF) experiments. Two cryogenically cooled experimental platforms were developed: an integrated platform fielded on the Z pulsed power generator that combines magnetization, laser preheat, and pulsed-power-driven fuel compression and a laser-only platform in a separate chamber that enables measurements of the laser preheat energy using shadowgraphy measurements. The laser-only experiments suggest that ∼89% ± 10% of the incident energy is coupled to the fuel in cooled targets across the energy range tested, significantly higher than previous warm experiments that achieved at most 67% coupling and in line with simulation predictions. The laser preheat configuration was applied to a cryogenically cooled integrated experiment that used a novel cryostat configuration that cooled the MagLIF liner from both ends. The integrated experiment, z3576, coupled 2.32 ± 0.25 kJ preheat energy to the fuel, the highest to-date, demonstrated excellent temperature control and nominal current delivery, and produced one of the highest pressure stagnations as determined by a Bayesian analysis of the data. (© 2023 Author(s). Published under an exclusive license by AIP Publishing.)
Databáze:	MEDLINE
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