Abstract：
:Ultra-fast synchrotron radiation emission can arise from the transverse betatron motion of an electron in a laser plasma wakefield, and the radiation spectral peak is limited to tens of keV. Here, we present a new method for achieving high-energy radiation via accelerated electrons wiggling in an additional laser field whose intensity is one order of magnitude higher than that for the self-generated transverse field of the bubble, resulting in an equivalent wiggler strength parameter K increase of approximately twenty times. By calculating synchrotron radiation, we acquired a peak brightness for the case of the laser wiggler field of 1.2 × 1023 ph/s/mrad2/mm2/0.1%BW at 1 MeV. Such a high brilliance and ultra-fast gamma-ray source could be applied to time-resolved probing of dense materials and the production of medical radioisotopes.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Feng J,Li Y,Wang J,Li D,Li F,Yan W,Wang W,Chen Ldoi
10.1038/s41598-019-38777-3subject
Has Abstractpub_date
2019-02-21 00:00:00pages
2531issue
1issn
2045-2322pii
10.1038/s41598-019-38777-3journal_volume
9pub_type
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