Record Details

Title:
High repetition rate, multi-MeV proton source from cryogenic hydrogen jets
Affiliation(s):
EuXFEL staff, Other
Author group:
Instrument HED
Topic:
Scientific area:
Abstract:
We report on a high repetition rate proton source produced by high-intensity laser irradiation of a continuously flowing, cryogenic hydrogen jet. The proton energy spectra are recorded at 1 Hz for Draco laser powers of 6, 20, 40, and 100 TW. The source delivers ∼$10^{13}$ protons/MeV/sr/min. We find that the average proton number over one minute, at energies sufficiently far from the cut-off energy, is robust to laser-target overlap and nearly constant. This work is therefore a first step towards pulsed laser-driven proton sources for time-resolved radiation damage studies and applications which require quasi-continuous doses at MeV energies.
Imprint:
American Institute of Physics, 2017
Journal Information:
Applied Physics Letters, 111, 114102 (2017)
Related external records:
Language(s):
English
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