Experimental demonstration of a compact epithermal neutron source based on a high power laser

S. R. Mirfayzi, A. Alejo, H. Ahmed, D. Raspino, S. Ansell, L.A. Wilson, C. Armstrong, N.M.H. Butler, R. J. Clarke, A. Higginson, J. Kelleher, C. Murphy, M. Notley, D.R. Rusby, E. Schooneveld, M. Borghesi, P. McKenna, N. J. Rhodes, D. Neely, C.M. Brenner & 1 others S. Kar

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Epithermal neutrons from pulsed-spallation sources have revolutionised neutron science allowing scientists to acquire new insight into the structure and properties of matter. Here we demonstrate that laser driven fast (∼MeV) neutrons can be efficiently moderated to epithermal energies with intrinsically short burst durations. In a proof-of-principle experiment using a 100 TW laser, a significant epithermal neutron flux of the order of 10 5 n/sr/pulse in the energy range 0.5-300 eV was measured, produced by a compact moderator deployed downstream of the laser-driven fast neutron source. The moderator used in the campaign was specifically designed, by the help of MCNPX simulations, for an efficient and directional moderation of the fast neutron spectrum produced by a laser driven source.
LanguageEnglish
Article number044101
Number of pages4
JournalApplied Physics Letters
Volume111
Issue number4
DOIs
Publication statusPublished - 26 Jul 2017

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neutron sources
high power lasers
fast neutrons
moderators
lasers
neutrons
neutron spectra
spallation
flux (rate)
bursts
energy
pulses
simulation

Keywords

  • laser plasma
  • neutron sources
  • spallation
  • high power laser systems
  • Laser driven neutron generation

Cite this

Mirfayzi, S. R., Alejo, A., Ahmed, H., Raspino, D., Ansell, S., Wilson, L. A., ... Kar, S. (2017). Experimental demonstration of a compact epithermal neutron source based on a high power laser. Applied Physics Letters, 111(4), [044101]. https://doi.org/10.1063/1.4994161
Mirfayzi, S. R. ; Alejo, A. ; Ahmed, H. ; Raspino, D. ; Ansell, S. ; Wilson, L.A. ; Armstrong, C. ; Butler, N.M.H. ; Clarke, R. J. ; Higginson, A. ; Kelleher, J. ; Murphy, C. ; Notley, M. ; Rusby, D.R. ; Schooneveld, E. ; Borghesi, M. ; McKenna, P. ; Rhodes, N. J. ; Neely, D. ; Brenner, C.M. ; Kar, S. / Experimental demonstration of a compact epithermal neutron source based on a high power laser. In: Applied Physics Letters. 2017 ; Vol. 111, No. 4.
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abstract = "Epithermal neutrons from pulsed-spallation sources have revolutionised neutron science allowing scientists to acquire new insight into the structure and properties of matter. Here we demonstrate that laser driven fast (∼MeV) neutrons can be efficiently moderated to epithermal energies with intrinsically short burst durations. In a proof-of-principle experiment using a 100 TW laser, a significant epithermal neutron flux of the order of 10 5 n/sr/pulse in the energy range 0.5-300 eV was measured, produced by a compact moderator deployed downstream of the laser-driven fast neutron source. The moderator used in the campaign was specifically designed, by the help of MCNPX simulations, for an efficient and directional moderation of the fast neutron spectrum produced by a laser driven source.",
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Mirfayzi, SR, Alejo, A, Ahmed, H, Raspino, D, Ansell, S, Wilson, LA, Armstrong, C, Butler, NMH, Clarke, RJ, Higginson, A, Kelleher, J, Murphy, C, Notley, M, Rusby, DR, Schooneveld, E, Borghesi, M, McKenna, P, Rhodes, NJ, Neely, D, Brenner, CM & Kar, S 2017, 'Experimental demonstration of a compact epithermal neutron source based on a high power laser' Applied Physics Letters, vol. 111, no. 4, 044101. https://doi.org/10.1063/1.4994161

Experimental demonstration of a compact epithermal neutron source based on a high power laser. / Mirfayzi, S. R.; Alejo, A.; Ahmed, H.; Raspino, D.; Ansell, S.; Wilson, L.A.; Armstrong, C.; Butler, N.M.H.; Clarke, R. J.; Higginson, A.; Kelleher, J.; Murphy, C.; Notley, M.; Rusby, D.R.; Schooneveld, E.; Borghesi, M.; McKenna, P.; Rhodes, N. J.; Neely, D.; Brenner, C.M.; Kar, S.

In: Applied Physics Letters, Vol. 111, No. 4, 044101, 26.07.2017.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Experimental demonstration of a compact epithermal neutron source based on a high power laser

AU - Mirfayzi, S. R.

AU - Alejo, A.

AU - Ahmed, H.

AU - Raspino, D.

AU - Ansell, S.

AU - Wilson, L.A.

AU - Armstrong, C.

AU - Butler, N.M.H.

AU - Clarke, R. J.

AU - Higginson, A.

AU - Kelleher, J.

AU - Murphy, C.

AU - Notley, M.

AU - Rusby, D.R.

AU - Schooneveld, E.

AU - Borghesi, M.

AU - McKenna, P.

AU - Rhodes, N. J.

AU - Neely, D.

AU - Brenner, C.M.

AU - Kar, S.

PY - 2017/7/26

Y1 - 2017/7/26

N2 - Epithermal neutrons from pulsed-spallation sources have revolutionised neutron science allowing scientists to acquire new insight into the structure and properties of matter. Here we demonstrate that laser driven fast (∼MeV) neutrons can be efficiently moderated to epithermal energies with intrinsically short burst durations. In a proof-of-principle experiment using a 100 TW laser, a significant epithermal neutron flux of the order of 10 5 n/sr/pulse in the energy range 0.5-300 eV was measured, produced by a compact moderator deployed downstream of the laser-driven fast neutron source. The moderator used in the campaign was specifically designed, by the help of MCNPX simulations, for an efficient and directional moderation of the fast neutron spectrum produced by a laser driven source.

AB - Epithermal neutrons from pulsed-spallation sources have revolutionised neutron science allowing scientists to acquire new insight into the structure and properties of matter. Here we demonstrate that laser driven fast (∼MeV) neutrons can be efficiently moderated to epithermal energies with intrinsically short burst durations. In a proof-of-principle experiment using a 100 TW laser, a significant epithermal neutron flux of the order of 10 5 n/sr/pulse in the energy range 0.5-300 eV was measured, produced by a compact moderator deployed downstream of the laser-driven fast neutron source. The moderator used in the campaign was specifically designed, by the help of MCNPX simulations, for an efficient and directional moderation of the fast neutron spectrum produced by a laser driven source.

KW - laser plasma

KW - neutron sources

KW - spallation

KW - high power laser systems

KW - Laser driven neutron generation

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U2 - 10.1063/1.4994161

DO - 10.1063/1.4994161

M3 - Article

VL - 111

JO - Applied Physics Letters

T2 - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 4

M1 - 044101

ER -

Mirfayzi SR, Alejo A, Ahmed H, Raspino D, Ansell S, Wilson LA et al. Experimental demonstration of a compact epithermal neutron source based on a high power laser. Applied Physics Letters. 2017 Jul 26;111(4). 044101. https://doi.org/10.1063/1.4994161