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Bright muon source driven by GeV electron beams from a compact laser wakefield accelerator

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Title
Bright muon source driven by GeV electron beams from a compact laser wakefield accelerator
Author(s)
Bobbili Sanyasi Rao; Jong Ho Jeon; Hyung Taek Kim; Chang Hee Nam
Publication Date
2018-09
Journal
PLASMA PHYSICS AND CONTROLLED FUSION, v.60, no.9, pp.095002 -
Publisher
IOP PUBLISHING LTD
Abstract
We report here a systematic quantitative study on the generation and characteristics of an active muon source driven by the interaction of an electron beam within the energy range of 1-10 GeV from laser wakefield acceleration (LWFA) with a tungsten target, using Monte Carlo simulations. The 10 GeV electron beam, achievable in the near future, from LWFA using femtosecond multi-PW lasers is employed to drive the bright source of muon pairs in a compact setup. We show that a highly directional and intense source of short-pulsed GeV muon pairs (μ - μ +) have a peak brightness of 5 × 1017 pairs s-1cm-2sr-1 and sub-100 ps duration could be produced using a quasi-monoenergetic 10 fs, 10 GeV electron bunch with a 1-mrad divergence and 100 pC charge. The muon pairs are emitted from a point-like source with a well-defined position and timing; the source has a size and geometric emittance of about 1 mm and 40 μm, respectively. Such muon sources can greatly benefit applications in muon radiography as well as studies on anomalous dipole moments, rare decays of muons, neutrino oscillations, and an injector for a future compact muon collider. © 2018 IOP Publishing Ltd
URI
https://pr.ibs.re.kr/handle/8788114/5177
ISSN
0741-3335
Appears in Collections:
Center for Relativistic Laser Science(초강력 레이저과학 연구단) > Journal Papers (저널논문)
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