X-ray emission from betatron motion in a plasma wiggler

The successful utilization of an ion channel in a plasma to wiggle a 28.5-GeV electron beam to obtain broadband x-ray radiation is reported. The ion channel is induced by the electron bunch as it propagates through an underdense 1.4-meter-long lithium plasma. The quadratic density dependence of the...

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Bibliographic Details
Published in:Physical review letters 2002-04, Vol.88 (13), p.135004-135004, Article 135004
Main Authors: Wang, Shuoqin, Clayton, C E, Blue, B E, Dodd, E S, Marsh, K A, Mori, W B, Joshi, C, Lee, S, Muggli, P, Katsouleas, T, Decker, F J, Hogan, M J, Iverson, R H, Raimondi, P, Walz, D, Siemann, R, Assmann, R
Format: Article
Language:English
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Summary:The successful utilization of an ion channel in a plasma to wiggle a 28.5-GeV electron beam to obtain broadband x-ray radiation is reported. The ion channel is induced by the electron bunch as it propagates through an underdense 1.4-meter-long lithium plasma. The quadratic density dependence of the spontaneously emitted betatron x-ray radiation and the divergence angle of approximately (1-3)x10(-4) radian of the forward-emitted x-rays as a consequence of betatron motion in the ion channel are in good agreement with theory. The absolute photon yield and the peak spectral brightness at 14.2-keV photon energy are estimated.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.88.135004