Open AccessX-Ray Emission from Betatron Motion in a Plasma Wiggler
Author(s) -
Shuoqin Wang,
C. E. Clayton,
B. E. Blue,
E. S. Dodd,
K. A. Marsh,
W. B. Mori,
C. Joshi,
S. Lee,
P. Muggli,
T. Katsouleas,
F.-J. Decker,
Mark Hogan,
R. Iverson,
P. Raimondi,
D. Walz,
R. Siemann,
R. Aßmann
Publication year - 2002
Publication title -
physical review letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.688
H-Index - 673
eISSN - 1079-7114
pISSN - 0031-9007
DOI - 10.1103/physrevlett.88.135004
Subject(s) - betatron , physics , atomic physics , wiggler , electron , plasma , photon , ion , radiation , optics , nuclear physics , cathode ray , quantum mechanics
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.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom