MeV proton beams generated by 3 mJ ultrafast laser pulses at 0.5 kHz

Journal Article · Mon Sep 07 00:00:00 EDT 2009 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3224180· OSTI ID:21294312

Bixue, Hou; Nees, John; Easter, James; Thomas, Alexander; Krushelnick, Karl ^[1]; Davis, Jack; Petrov, George ^[2]

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1. Center for Ultrafast Optical Science, University of Michigan, 2200 Bonisteel Blvd, Ann Arbor, Michigan 48109-2099 (United States)
2. Plasma Physics Division, Naval Research Laboratory, 4555 Overlook Ave SW, Washington, DC 20375 (United States)

Well-collimated proton beams are generated from bulk glass along the target normal direction by tightly focused 55 fs, 3 mJ pulses from a laser operating at 0.5 kHz repetition rate. Proton beams with energies of >265 keV have an emission angle of about 16 deg. full width at half maximum. Spectral measurements indicate proton energies exceeding 0.5 MeV with a flux of 3.2x10{sup 9} s{sup -1} sr{sup -1} and the flux of measured protons with energies of greater than 90 keV is 8.5x10{sup 11} s{sup -1} sr{sup -1} on center.

• OSTI ID: 21294312
• Journal Information: Applied Physics Letters, Vol. 95, Issue 10; Other Information: DOI: 10.1063/1.3224180; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GLASS
HZ RANGE
KEV RANGE 100-1000
LASERS
PROTON BEAMS
PROTONS
PULSES