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Active manipulation of the spatial energy distribution of laser-accelerated proton beams

Carroll, DC; McKenna, P; Lundh, Olle LU ; Lindau, Filip LU ; Wahlström, Claes-Göran LU ; Bandyopadhyay, S; Pepler, D; Neely, D; Kar, S and Simpson, PT, et al. (2007) In Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)2001-01-01+01:002016-01-01+01:00 76(065401(R)). p.1-065401
Abstract
The spatial energy distributions of beams of protons accelerated by ultrahigh intensity (>10^19 W/cm2) picosecond laser pulse interactions with thin foil targets are investigated. Using separate, low intensity (<10^13 W/cm2) nanosecond laser pulses, focused onto the front surface of the target foil prior to the arrival of

the high intensity pulse, it is demonstrated that the proton beam profile can be actively manipulated. In

particular, results obtained with an annular intensity distribution at the focus of the low intensity beam are

presented, showing smooth proton beams with a sharp circular boundary at all energies, which represents a

significant improvement in the beam quality compared to... (More)
The spatial energy distributions of beams of protons accelerated by ultrahigh intensity (>10^19 W/cm2) picosecond laser pulse interactions with thin foil targets are investigated. Using separate, low intensity (<10^13 W/cm2) nanosecond laser pulses, focused onto the front surface of the target foil prior to the arrival of

the high intensity pulse, it is demonstrated that the proton beam profile can be actively manipulated. In

particular, results obtained with an annular intensity distribution at the focus of the low intensity beam are

presented, showing smooth proton beams with a sharp circular boundary at all energies, which represents a

significant improvement in the beam quality compared to irradiation with the picosecond beam alone. (Less)
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Contribution to journal
publication status
published
subject
in
Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)2001-01-01+01:002016-01-01+01:00
volume
76
issue
065401(R)
pages
1 - 065401
publisher
American Physical Society
external identifiers
  • wos:000251985800002
  • scopus:37149040964
ISSN
1539-3755
DOI
10.1103/PhysRevE.76.065401
language
English
LU publication?
yes
id
cb2145fe-e792-40a1-aaf8-5668396f48c4 (old id 760908)
date added to LUP
2007-12-17 15:22:01
date last changed
2017-10-01 03:55:15
@article{cb2145fe-e792-40a1-aaf8-5668396f48c4,
  abstract     = {The spatial energy distributions of beams of protons accelerated by ultrahigh intensity (&gt;10^19 W/cm2) picosecond laser pulse interactions with thin foil targets are investigated. Using separate, low intensity (&lt;10^13 W/cm2) nanosecond laser pulses, focused onto the front surface of the target foil prior to the arrival of<br/><br>
the high intensity pulse, it is demonstrated that the proton beam profile can be actively manipulated. In<br/><br>
particular, results obtained with an annular intensity distribution at the focus of the low intensity beam are<br/><br>
presented, showing smooth proton beams with a sharp circular boundary at all energies, which represents a<br/><br>
significant improvement in the beam quality compared to irradiation with the picosecond beam alone.},
  author       = {Carroll, DC and McKenna, P and Lundh, Olle and Lindau, Filip and Wahlström, Claes-Göran and Bandyopadhyay, S and Pepler, D and Neely, D and Kar, S and Simpson, PT and Markey, K and Zepf, M and Bellei, C and Evans, RG and Redaelli, R and Batani, D and Xu, MH and Li, YT},
  issn         = {1539-3755},
  language     = {eng},
  number       = {065401(R)},
  pages        = {1--065401},
  publisher    = {American Physical Society},
  series       = {Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)2001-01-01+01:002016-01-01+01:00},
  title        = {Active manipulation of the spatial energy distribution of laser-accelerated proton beams},
  url          = {http://dx.doi.org/10.1103/PhysRevE.76.065401},
  volume       = {76},
  year         = {2007},
}