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Title: Forward Ion Acceleration in Thin Films Driven by a High-Intensity Laser

Abstract

A collimated beam of fast protons, with energies as high as 1.5 MeV and total number of (greater-or-similar sign)10{sup 9} , confined in a cone angle of 40 degree sign {+-}10 degree sign is observed when a high-intensity high-contrast subpicosecond laser pulse is focused onto a thin foil target. The protons, which appear to originate from impurities on the front side of the target, are accelerated over a region extending into the target and exit out the back side in a direction normal to the target surface. Acceleration field gradients {approx}10 GeV/cm are inferred. The maximum proton energy can be explained by the charge-separation electrostatic-field acceleration due to ''vacuum heating.'' (c) 2000 The American Physical Society.

Authors:
; ; ; ;
Publication Date:
OSTI Identifier:
20216332
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 84; Journal Issue: 18; Other Information: PBD: 1 May 2000; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; THIN FILMS; LASER RADIATION; PROTON BEAMS; PLASMA ACCELERATION; PLASMA EXPANSION; LASER-PRODUCED PLASMA; EXPERIMENTAL DATA

Citation Formats

Maksimchuk, A., Gu, S., Flippo, K., Umstadter, D., and Bychenkov, V. Yu. Forward Ion Acceleration in Thin Films Driven by a High-Intensity Laser. United States: N. p., 2000. Web. doi:10.1103/PhysRevLett.84.4108.
Maksimchuk, A., Gu, S., Flippo, K., Umstadter, D., & Bychenkov, V. Yu. Forward Ion Acceleration in Thin Films Driven by a High-Intensity Laser. United States. doi:10.1103/PhysRevLett.84.4108.
Maksimchuk, A., Gu, S., Flippo, K., Umstadter, D., and Bychenkov, V. Yu. Mon . "Forward Ion Acceleration in Thin Films Driven by a High-Intensity Laser". United States. doi:10.1103/PhysRevLett.84.4108.
@article{osti_20216332,
title = {Forward Ion Acceleration in Thin Films Driven by a High-Intensity Laser},
author = {Maksimchuk, A. and Gu, S. and Flippo, K. and Umstadter, D. and Bychenkov, V. Yu.},
abstractNote = {A collimated beam of fast protons, with energies as high as 1.5 MeV and total number of (greater-or-similar sign)10{sup 9} , confined in a cone angle of 40 degree sign {+-}10 degree sign is observed when a high-intensity high-contrast subpicosecond laser pulse is focused onto a thin foil target. The protons, which appear to originate from impurities on the front side of the target, are accelerated over a region extending into the target and exit out the back side in a direction normal to the target surface. Acceleration field gradients {approx}10 GeV/cm are inferred. The maximum proton energy can be explained by the charge-separation electrostatic-field acceleration due to ''vacuum heating.'' (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevLett.84.4108},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 18,
volume = 84,
place = {United States},
year = {2000},
month = {5}
}