Recent progress in particle acceleration from the interaction between thin-foil targets and J-KAREN laser pulses

Journal Article · Wed Jul 11 04:00:00 EDT 2012 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4737552· OSTI ID:22069065

Nishiuchi, Mamiko; Pirozhkov, Alexander S; Sakaki, Hironao; Ogura, Koichi; Esirkepov, Timur Zh; Tanimoto, Tsuyoshi; Yogo, Akifumi; Hori, Toshihiko; Sagisaka, Akito; Fukuda, Yuji; Kanasaki, Masato; Kiriyama, Hiromitsu; Shimomura, Takuya; Tanoue, Manabu; Nakai, Yoshiki; Sasao, Hajime; Sasao, Fumitaka; Kanazawa, Shuhei; Kondo, Shuji; Matsumoto, Yoshihiro ^[1] ; others, and

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1. Advanced Photon Research Center, Kansai Photon Science Institute, Japan Atomic Energy Agency, 8-1 Umemi-dai, Kizugawa, Kyoto, 619-0215 (Japan)

From the interaction between the high-contrast ({approx}more than 10{sup 10}) 130 TW Ti:sapphire laser pulse and Stainless Steel-2.5 um-thick tape target, proton beam with energies up to 23 MeV with the conversion efficiency of {approx}1% is obtained. After plasma mirror installation for contrast improvement, from the interaction between the 30 TW laser pulse and thin-foil target installed on the target holder with the hole whose shape is associated with the design of the well-known Wehnelt electrode of electron-gun, a 7 MeV intense proton beam is controlled dynamically and energy selected by the self-induced quasi-static electric field on the target holder. From the highly divergent beam having continuous spectrum, which are the typical features of the laser-driven proton beams from the interactions between the short-pulse laser and solid target, the spatial distribution of 7 MeV proton bunch is well manipulated to be focused to an small spots with an angular distribution of {approx}10 mrad. The number of protons included in the bunch is >10{sup 6}.

• OSTI ID: 22069065
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1465; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ACCELERATION
ACCELERATORS
ANGULAR DISTRIBUTION
BEAM BUNCHING
BEAM PRODUCTION
ELECTRIC FIELDS
ELECTRON GUNS
FOILS
LASER RADIATION
LASER TARGETS
LASER-PRODUCED PLASMA
LIGHT TRANSMISSION
MEV RANGE
PLASMA GUNS
PROTON BEAMS
STAINLESS STEELS