Laser driven MeV proton beam focussing by auto-charged electrostatic lens configuration

S. Kar, M. Zepf, K. Markey, P. Simpson, C. Bellei, J. Green, B. Dromey, S. Nagel, S. Kneip, L. Williangle, D. C. Carroll, P. McKenna, Z. Najmuddin, K. Krushelnick, P. Norreys, E. Clark, R. J. Clark, D. Neely, M. Borghesi, A. Schiavi

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

Laser driven multi-MeV proton beams from the rear surface of solid targets have been the
subject of significant interest in last few years, due to their potential applications in various
fields of science [1]. Despite of unique beam characteristics, such as low emittance, short burst
duration and high particle energies there is still need for development. The large divergence
angle and the broad energy spectrum are undesirable in most applications. Significant reduction
of the inherent large divergence of the laser driven MeV proton beams has been achieved
by strong (of the order of 109 V/m) electrostatic focusing field generated in the confined region
of a ’washer’ type target geometry attached to the proton generating foil. In this scheme,
the self charging of the target to multi-MV positive potential [2] is exploited to form a focusing
field in suitable target geometries. A significant reduction in the proton beam divergence,
and commensurate increase in the proton flux has been observed while preserving low beam
emittance. The underlying mechanism has been verified using particle tracking simulations.
LanguageEnglish
Title of host publication34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts
Place of PublicationMulhouse, France
Number of pages4
Volume31F
Publication statusPublished - 1 Dec 2007
Event34th European Physical Society Conference on Plasma Physics 2007, EPS 2007 - Warsaw, Poland
Duration: 2 Jul 20076 Jul 2007

Conference

Conference34th European Physical Society Conference on Plasma Physics 2007, EPS 2007
CountryPoland
CityWarsaw
Period2/07/076/07/07

Fingerprint

proton beams
lenses
electrostatics
configurations
lasers
divergence
washers
protons
geometry
emittance
particle energy
preserving
charging
foils
energy spectra
simulation

Keywords

  • Laser driven multi-MeV proton beams
  • VULCAN petawatt laser system
  • laser pulses
  • flat foil targets

Cite this

Kar, S., Zepf, M., Markey, K., Simpson, P., Bellei, C., Green, J., ... Schiavi, A. (2007). Laser driven MeV proton beam focussing by auto-charged electrostatic lens configuration. In 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts (Vol. 31F). [O-4.020] Mulhouse, France.
Kar, S. ; Zepf, M. ; Markey, K. ; Simpson, P. ; Bellei, C. ; Green, J. ; Dromey, B. ; Nagel, S. ; Kneip, S. ; Williangle, L. ; Carroll, D. C. ; McKenna, P. ; Najmuddin, Z. ; Krushelnick, K. ; Norreys, P. ; Clark, E. ; Clark, R. J. ; Neely, D. ; Borghesi, M. ; Schiavi, A. / Laser driven MeV proton beam focussing by auto-charged electrostatic lens configuration. 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts. Vol. 31F Mulhouse, France, 2007.
@inproceedings{19158d4745b84b76b5716ade9d3d2964,
title = "Laser driven MeV proton beam focussing by auto-charged electrostatic lens configuration",
abstract = "Laser driven multi-MeV proton beams from the rear surface of solid targets have been thesubject of significant interest in last few years, due to their potential applications in variousfields of science [1]. Despite of unique beam characteristics, such as low emittance, short burstduration and high particle energies there is still need for development. The large divergenceangle and the broad energy spectrum are undesirable in most applications. Significant reductionof the inherent large divergence of the laser driven MeV proton beams has been achievedby strong (of the order of 109 V/m) electrostatic focusing field generated in the confined regionof a ’washer’ type target geometry attached to the proton generating foil. In this scheme,the self charging of the target to multi-MV positive potential [2] is exploited to form a focusingfield in suitable target geometries. A significant reduction in the proton beam divergence,and commensurate increase in the proton flux has been observed while preserving low beamemittance. The underlying mechanism has been verified using particle tracking simulations.",
keywords = "Laser driven multi-MeV proton beams, VULCAN petawatt laser system, laser pulses, flat foil targets",
author = "S. Kar and M. Zepf and K. Markey and P. Simpson and C. Bellei and J. Green and B. Dromey and S. Nagel and S. Kneip and L. Williangle and Carroll, {D. C.} and P. McKenna and Z. Najmuddin and K. Krushelnick and P. Norreys and E. Clark and Clark, {R. J.} and D. Neely and M. Borghesi and A. Schiavi",
year = "2007",
month = "12",
day = "1",
language = "English",
isbn = "9788392629009",
volume = "31F",
booktitle = "34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts",

}

Kar, S, Zepf, M, Markey, K, Simpson, P, Bellei, C, Green, J, Dromey, B, Nagel, S, Kneip, S, Williangle, L, Carroll, DC, McKenna, P, Najmuddin, Z, Krushelnick, K, Norreys, P, Clark, E, Clark, RJ, Neely, D, Borghesi, M & Schiavi, A 2007, Laser driven MeV proton beam focussing by auto-charged electrostatic lens configuration. in 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts. vol. 31F, O-4.020, Mulhouse, France, 34th European Physical Society Conference on Plasma Physics 2007, EPS 2007, Warsaw, Poland, 2/07/07.

Laser driven MeV proton beam focussing by auto-charged electrostatic lens configuration. / Kar, S.; Zepf, M.; Markey, K.; Simpson, P.; Bellei, C.; Green, J.; Dromey, B.; Nagel, S.; Kneip, S.; Williangle, L.; Carroll, D. C.; McKenna, P.; Najmuddin, Z.; Krushelnick, K.; Norreys, P.; Clark, E.; Clark, R. J.; Neely, D.; Borghesi, M.; Schiavi, A.

34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts. Vol. 31F Mulhouse, France, 2007. O-4.020.

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

TY - GEN

T1 - Laser driven MeV proton beam focussing by auto-charged electrostatic lens configuration

AU - Kar, S.

AU - Zepf, M.

AU - Markey, K.

AU - Simpson, P.

AU - Bellei, C.

AU - Green, J.

AU - Dromey, B.

AU - Nagel, S.

AU - Kneip, S.

AU - Williangle, L.

AU - Carroll, D. C.

AU - McKenna, P.

AU - Najmuddin, Z.

AU - Krushelnick, K.

AU - Norreys, P.

AU - Clark, E.

AU - Clark, R. J.

AU - Neely, D.

AU - Borghesi, M.

AU - Schiavi, A.

PY - 2007/12/1

Y1 - 2007/12/1

N2 - Laser driven multi-MeV proton beams from the rear surface of solid targets have been thesubject of significant interest in last few years, due to their potential applications in variousfields of science [1]. Despite of unique beam characteristics, such as low emittance, short burstduration and high particle energies there is still need for development. The large divergenceangle and the broad energy spectrum are undesirable in most applications. Significant reductionof the inherent large divergence of the laser driven MeV proton beams has been achievedby strong (of the order of 109 V/m) electrostatic focusing field generated in the confined regionof a ’washer’ type target geometry attached to the proton generating foil. In this scheme,the self charging of the target to multi-MV positive potential [2] is exploited to form a focusingfield in suitable target geometries. A significant reduction in the proton beam divergence,and commensurate increase in the proton flux has been observed while preserving low beamemittance. The underlying mechanism has been verified using particle tracking simulations.

AB - Laser driven multi-MeV proton beams from the rear surface of solid targets have been thesubject of significant interest in last few years, due to their potential applications in variousfields of science [1]. Despite of unique beam characteristics, such as low emittance, short burstduration and high particle energies there is still need for development. The large divergenceangle and the broad energy spectrum are undesirable in most applications. Significant reductionof the inherent large divergence of the laser driven MeV proton beams has been achievedby strong (of the order of 109 V/m) electrostatic focusing field generated in the confined regionof a ’washer’ type target geometry attached to the proton generating foil. In this scheme,the self charging of the target to multi-MV positive potential [2] is exploited to form a focusingfield in suitable target geometries. A significant reduction in the proton beam divergence,and commensurate increase in the proton flux has been observed while preserving low beamemittance. The underlying mechanism has been verified using particle tracking simulations.

KW - Laser driven multi-MeV proton beams

KW - VULCAN petawatt laser system

KW - laser pulses

KW - flat foil targets

M3 - Conference contribution book

SN - 9788392629009

VL - 31F

BT - 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts

CY - Mulhouse, France

ER -

Kar S, Zepf M, Markey K, Simpson P, Bellei C, Green J et al. Laser driven MeV proton beam focussing by auto-charged electrostatic lens configuration. In 34th EPS Conference on Plasma Physics 2007, EPS 2007 - Europhysics Conference Abstracts. Vol. 31F. Mulhouse, France. 2007. O-4.020