Enhancement of fast electron energy deposition by external magnetic fields. (March 2016)

• Record Type: Journal Article
• Authors: Honrubia, J J; Murakami, M; Mima, K; Johzaki, T; Sunahara, A; Nagatomo, H; Fujioka, S; Shiraga, H; Azechi, H
• Is Part Of: Journal of physics. Volume 688(2016)
• Publication Date: 2016-03
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/688/1/012033
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: Recently, generation of external magnetic fields of a few kT has been reported [Fujioka et al. Scientific Reports 2013 3 1170]. These fields can be used in fast ignition to mitigate the large fast electron divergence. In this summary, two fast ignition applications are briefly outlined. The first one deals with electron guiding by external B-fields applied at the end of the shell implosion of a re-entrant cone target. Preliminary results show that the B-field strength at the time of peak ρR may be sufficiently high for fast electron guiding. The second application deals with guiding of fast electrons in magnetized wires surrounded by plasma. Results show a significant enhancement of electron energy deposition at the end of the wire, which is particularly important for low-Z wires.