In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 31, No. 11R ( 1992-11-01), p. 3716-
Abstract:
A new electron acceleration mechanism of the superposed laser acceleration which was proposed in a paper [Jpn. J. Appl. Phys. 30 (1991) L1887] is reexamined by numerical analyses and analytical work in order to obtain a scaling law for this mechanism, and to check beam quality and the diffraction effect of laser. In this mechanism, electrons are accelerated by means of two superposed laser beams in which a longitudinal electric field is produced. The numerical analyses show that the acceleration gradient can be 1∼10 GeV/m or more depending on the laser parameter employed, when this mechanism is employed appropriately in an acceleration system. In this paper the following important results are obtained: 1) The scaling law is derived in the analytical work and it is numerically reproduced. 2) An electron beam should be collimated well in order to be accelerated well. 3) The diffraction effect of laser beams has a great influence on the electron acceleration. Under the influence of the diffraction, electrons may not be accelerated at all. Drift tubes which lead electrons to only the acceleration region may be required for effective acceleration.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.31.3716
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1992
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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