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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/52842
Record Status
Checked
Record Id
52842
Title
Investigation of the role of plasma channels as waveguides for laser-wakefield accelerators
Contributors
TPA Ibbotson
,
N Bourgeois
,
TP Rowlands-Rees
,
LS Caballero
,
SI Bajlekov
,
PA Walker
,
S Kneip
,
SPD Mangles
,
SR Nagel
,
CAJ Palmer
,
N Delerue
,
G Doucas
,
D Urner
,
O Chekhlov (STFC Rutherford Appleton Lab.)
,
RJ Clarke (STFC Rutherford Appleton Lab.)
,
E Divall (STFC Rutherford Appleton Lab.)
,
K Ertel (STFC Rutherford Appleton Lab.)
,
P Foster (STFC Rutherford Appleton Lab.)
,
SJ Hawkes (STFC Rutherford Appleton Lab.)
,
CJ Hooker (STFC Rutherford Appleton Lab.)
,
B Parry (STFC Rutherford Appleton Lab.)
,
PP Rajeev (STFC Rutherford Appleton Lab.)
,
MJV Streeter (STFC Rutherford Appleton Lab.)
,
SM Hooker
Abstract
The role of plasma channels as waveguides for laser-wakefield accelerators is discussed in terms of the results of experiments performed with the Astra-Gemini laser, numerical simulations using the code WAKE, and the theory of self-focusing and self-guiding of intense laser beams. It is found that at a given electron density, electron beams can be accelerated using lower laser powers in a waveguide structure than in a gas-jet or cell. The transition between relativistically self-guided and channel-assisted guiding is seen in the simulations and in the behaviour of the production of electron beams. We also show that by improving the quality of the driving laser beam the threshold laser energy required to produce electron beams can be reduced by a factor of almost 2. The use of an aperture allows the production of a quasi-monoenergetic electron beam of energy 520 MeV with an input laser power of only 30 TW.
Organisation
CLF
,
CLF-HPL
,
CLF-ASTRA
,
STFC
Keywords
Physics
Funding Information
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Journal Article
New J Phys
12, no. 4 (2010): 045008.
doi:10.1088/1367-2630/12/4/045008
1367-2630_12_4_045008.pdf
2010
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