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Title: Laser driven proton beam for the applications: toward ultra-high intensity and short pulse proton beam

Journal Article · · AIP Conference Proceedings
DOI:https://doi.org/10.1063/1.3204519· OSTI ID:21344307
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  1. Advanced Photon Research Center and Photo Medical Research Center, Kansai Photon Science Institute, Japan Atomic Energy Agency, 8-1-7 Umemi-dai, Kizugawa, Kyoto, 619-0215 (Japan)

As a benchmark experiment to realize a novel and compact laser driven proton accelerator whose significant features are high number density in a short pulse width (approxns), 2.4 MeV laser driven proton beam is stably focused at 1 Hz repetition rate by using a pair of permanent quadrupole magnets (PMQs) with large apertures whose diameters and field strengths are 3.5 cm and 55 T/m for the first and 2.3 cm and 60 T/m for the second magnets, respectively. The proton beam has been focused to a focal spot of 3x8 mm{sup 2} in horizontal and vertical direction (full width at half maximum) at 650approxmm from the source, which is well reproduced by the simulation. The further optimization of the focusing system will sure to pave a way to the novel proton accelerator with which we can investigate the physics appeared in the short time scale as well as that in a high energy density matter, oncology, astrophysics, and so on.

OSTI ID:
21344307
Journal Information:
AIP Conference Proceedings, Vol. 1153, Issue 1; Conference: 2. international symposium on laser-driven relativistic plasmas applied to science, industry and medicine, Kyoto (Japan), 19-23 Jan 2009; Other Information: DOI: 10.1063/1.3204519; (c) 2009 American Institute of Physics; ISSN 0094-243X
Country of Publication:
United States
Language:
English