X-Ray Emission from Betatron Motion in a Plasma Wiggler

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 spontaneously emitted betatron x-ray radiation and the divergence angle of approximately (1-3)x10...

Positron production by x rays emitted by betatron motion in a plasma wiggler.

Positrons in the energy range of 3-30 MeV, produced by x rays emitted by betatron motion in a plasma wiggler of 28.5 GeV electrons from the SLAC accelerator, have been measured. The extremely high-strength plasma wiggler is an ion column induced by the electron beam as it propagates through and ionizes dense lithium vapor. X rays in the range of 1-50 MeV in a forward cone angle of 0.1 mrad coll...

Positron Source from X-rays Emitted by Plasma Betatron Motion

A new method for generating positrons has been proposed that uses betatron X-rays emitted by an electron beam in a high-K plasma wiggler. The plasma wiggler is an ion column produced by the head of the beam when the peak beam density exceeds the plasma density. The radial electric field of the beam blows out the plasma electrons transversely, creating an ion column. The focusing electric field ...

X-ray emission from laser-plasma acceleration experiments

S. Trotsenko, D. B. Thorn, G. R. Plateau, C. G. R. Geddes, N. H. Matlis, E. H. Esarey, M. Battaglia, C. B. Schroeder, S. Shiraishi, Th. Stöhlker, S. Tashenov, C. Tóth, and W. Leemans Helmholtz Institute Jena, 07743 Jena, Germany; GSI, 64291 Darmstadt, Germany; ExtreMe Matter Institute EMMI/GSI, 64291 Darmstadt, Germany; Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA; École Polyt...

X-ray Emission Spectra from Laser-produced Cobalt Plasma