Mitigating stimulated scattering processes in gas-filled Hohlraums via external magnetic fields

Journal Article · Tue Sep 15 00:00:00 EDT 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4931077· OSTI ID:22493744

Gong, Tao ^[1]; Zheng, Jian ^[1]; Li, Zhichao; Ding, Yongkun; Yang, Dong ^[2]; Hu, Guangyue; Zhao, Bin ^[1]

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1. CAS Key Laboratory of Geospace Environment and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China)
2. Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900 (China)

A simple model, based on energy and pressure equilibrium, is proposed to deal with the effect of external magnetic fields on the plasma parameters inside the laser path, which shows that the electron temperature can be significantly enhanced as the intensity of the external magnetic fields increases. With the combination of this model and a 1D three-wave coupling code, the effect of external magnetic fields on the reflectivities of stimulated scattering processes is studied. The results indicate that a magnetic field with an intensity of tens of Tesla can decrease the reflectivities of stimulated scattering processes by several orders of magnitude.

• OSTI ID: 22493744
• Journal Information: Physics of Plasmas, Vol. 22, Issue 9; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ELECTRON TEMPERATURE
LASER CAVITIES
MAGNETIC FIELDS
ONE-DIMENSIONAL CALCULATIONS
PLASMA
REFLECTIVITY
SCATTERING
WAVE EQUATIONS