Beamed neutron emission driven by laser accelerated light ions

S Kar, A Green, H Ahmed, A Alejo, A P L Robinson, M Cerchez, R Clarke, D Doria, S Dorkings, J Fernandez, S R Mirfayzi, P Mckenna, K Naughton, D Neely, P Norreys, C Peth, H Powell, J A Ruiz, J Swain, O Willi & 1 others M Borghesi

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Highly anisotropic, beam-like neutron emission with peak flux of the order of109 n/sr was obtained from light nuclei reactions in a pitcher-catcher scenario, by employing MeV ions driven by sub-petawatt laser. The spatial prole of the neutron beam, fully captured for the first time by employing a CR39 nuclear track detector, shows a FWHM divergence angle of ∼70°, with a peak flux nearly an order of magnitude higher than the isotropic component elsewhere. The observed beamed flux of neutrons is highly favourable for a wide range of applications, and indeed for further transport and moderation to thermal energies.  A systematic study employing various combinations of pitcher-catcher materials indicates the dominant reactions being d(p,n+p)1H and d(d,n)3He. Albeit in sufficient cross-section data are available for modelling, the observed anisotropy in the neutrons' spatial and spectral profiles are most likely related to the directionality and high energy of the projectile ions.
LanguageEnglish
Number of pages10
JournalNew Journal of Physics
Volume18
DOIs
Publication statusPublished - 29 Apr 2016

Fingerprint

neutron emission
light ions
catchers
lasers
neutrons
neutron beams
thermal energy
projectiles
divergence
ions
anisotropy
nuclei
detectors
cross sections
profiles
energy

Keywords

  • neutron emission
  • laser acceleration
  • ion
  • neutron
  • laser

Cite this

Kar, S., Green, A., Ahmed, H., Alejo, A., Robinson, A. P. L., Cerchez, M., ... Borghesi, M. (2016). Beamed neutron emission driven by laser accelerated light ions. New Journal of Physics, 18. https://doi.org/10.1088/1367-2630/18/5/053002
Kar, S ; Green, A ; Ahmed, H ; Alejo, A ; Robinson, A P L ; Cerchez, M ; Clarke, R ; Doria, D ; Dorkings, S ; Fernandez, J ; Mirfayzi, S R ; Mckenna, P ; Naughton, K ; Neely, D ; Norreys, P ; Peth, C ; Powell, H ; Ruiz, J A ; Swain, J ; Willi, O ; Borghesi, M. / Beamed neutron emission driven by laser accelerated light ions. In: New Journal of Physics. 2016 ; Vol. 18.
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abstract = "Highly anisotropic, beam-like neutron emission with peak flux of the order of109 n/sr was obtained from light nuclei reactions in a pitcher-catcher scenario, by employing MeV ions driven by sub-petawatt laser. The spatial prole of the neutron beam, fully captured for the first time by employing a CR39 nuclear track detector, shows a FWHM divergence angle of ∼70°, with a peak flux nearly an order of magnitude higher than the isotropic component elsewhere. The observed beamed flux of neutrons is highly favourable for a wide range of applications, and indeed for further transport and moderation to thermal energies.  A systematic study employing various combinations of pitcher-catcher materials indicates the dominant reactions being d(p,n+p)1H and d(d,n)3He. Albeit in sufficient cross-section data are available for modelling, the observed anisotropy in the neutrons' spatial and spectral profiles are most likely related to the directionality and high energy of the projectile ions.",
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author = "S Kar and A Green and H Ahmed and A Alejo and Robinson, {A P L} and M Cerchez and R Clarke and D Doria and S Dorkings and J Fernandez and Mirfayzi, {S R} and P Mckenna and K Naughton and D Neely and P Norreys and C Peth and H Powell and Ruiz, {J A} and J Swain and O Willi and M Borghesi",
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Kar, S, Green, A, Ahmed, H, Alejo, A, Robinson, APL, Cerchez, M, Clarke, R, Doria, D, Dorkings, S, Fernandez, J, Mirfayzi, SR, Mckenna, P, Naughton, K, Neely, D, Norreys, P, Peth, C, Powell, H, Ruiz, JA, Swain, J, Willi, O & Borghesi, M 2016, 'Beamed neutron emission driven by laser accelerated light ions' New Journal of Physics, vol. 18. https://doi.org/10.1088/1367-2630/18/5/053002

Beamed neutron emission driven by laser accelerated light ions. / Kar, S; Green, A; Ahmed, H; Alejo, A; Robinson, A P L; Cerchez, M; Clarke, R; Doria, D; Dorkings, S; Fernandez, J; Mirfayzi, S R; Mckenna, P; Naughton, K; Neely, D; Norreys, P; Peth, C; Powell, H; Ruiz, J A; Swain, J; Willi, O; Borghesi, M.

In: New Journal of Physics, Vol. 18, 29.04.2016.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Beamed neutron emission driven by laser accelerated light ions

AU - Kar, S

AU - Green, A

AU - Ahmed, H

AU - Alejo, A

AU - Robinson, A P L

AU - Cerchez, M

AU - Clarke, R

AU - Doria, D

AU - Dorkings, S

AU - Fernandez, J

AU - Mirfayzi, S R

AU - Mckenna, P

AU - Naughton, K

AU - Neely, D

AU - Norreys, P

AU - Peth, C

AU - Powell, H

AU - Ruiz, J A

AU - Swain, J

AU - Willi, O

AU - Borghesi, M

PY - 2016/4/29

Y1 - 2016/4/29

N2 - Highly anisotropic, beam-like neutron emission with peak flux of the order of109 n/sr was obtained from light nuclei reactions in a pitcher-catcher scenario, by employing MeV ions driven by sub-petawatt laser. The spatial prole of the neutron beam, fully captured for the first time by employing a CR39 nuclear track detector, shows a FWHM divergence angle of ∼70°, with a peak flux nearly an order of magnitude higher than the isotropic component elsewhere. The observed beamed flux of neutrons is highly favourable for a wide range of applications, and indeed for further transport and moderation to thermal energies.  A systematic study employing various combinations of pitcher-catcher materials indicates the dominant reactions being d(p,n+p)1H and d(d,n)3He. Albeit in sufficient cross-section data are available for modelling, the observed anisotropy in the neutrons' spatial and spectral profiles are most likely related to the directionality and high energy of the projectile ions.

AB - Highly anisotropic, beam-like neutron emission with peak flux of the order of109 n/sr was obtained from light nuclei reactions in a pitcher-catcher scenario, by employing MeV ions driven by sub-petawatt laser. The spatial prole of the neutron beam, fully captured for the first time by employing a CR39 nuclear track detector, shows a FWHM divergence angle of ∼70°, with a peak flux nearly an order of magnitude higher than the isotropic component elsewhere. The observed beamed flux of neutrons is highly favourable for a wide range of applications, and indeed for further transport and moderation to thermal energies.  A systematic study employing various combinations of pitcher-catcher materials indicates the dominant reactions being d(p,n+p)1H and d(d,n)3He. Albeit in sufficient cross-section data are available for modelling, the observed anisotropy in the neutrons' spatial and spectral profiles are most likely related to the directionality and high energy of the projectile ions.

KW - neutron emission

KW - laser acceleration

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KW - neutron

KW - laser

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JO - New Journal of Physics

T2 - New Journal of Physics

JF - New Journal of Physics

SN - 1367-2630

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