Long-range persistence of femtosecond modulations on laser-plasma-accelerated electron beams

van Tilborg, J.; Lin, C.; Nakamura, K.; Gonsalves, A.J.; Matlis, N.H.; Sokollik, T.; Shiraishi, S.; Osterhoff, J.; Benedetti, C.; Schroeder, C.B.

doi:10.1063/1.4773796

Long-range persistence of femtosecond modulations on laser-plasma-accelerated electron beams

Dec 21, 2012

6 pages

Part of Proceedings, 15th Advanced Accelerator Concepts Workshop (AAC 2012) : Austin, Texas, USA, 10-15 June, 2012, 774-779

Published in:

AIP Conf.Proc. 1507 (2012) 1, 774-779

Contribution to:

- AAC 2012
, 774-779

Published: Dec 21, 2012

DOI:

10.1063/1.4773796

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Abstract: (AIP)

Laser plasma accelerators have produced femtosecond electron bunches with a relative energy spread ranging from 100% to a few percent. Simulations indicate that the measured energy spread can be dominated by a correlated spread, with the slice spread significantly lower. Measurements of coherent optical transition radiation are presented for broad-energy-spread beams with laser-induced density and momentum modulations. The long-range (meter-scale) observation of coherent optical transition radiation indicates that the slice energy spread is below the percent level to preserve the modulations.

electron: beam
transition radiation: optical
transition radiation: coherence
transition radiation
long-range
accelerator: plasma
density
modulation
measurement methods
electron beams

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