Ultra-short, beamed source of laser-driven epithermal neutrons

S. R. Mirfayzi; T. Mori; D. Rusby; C. Armstrong; H. Ahmed; M. Borghesi; C.M. Brenner; R.J. Clarke; Z.E. Davidson; D. Doria; C. P. Jones; P. McKenna; D. Neely; T. B. Scott; A. Yogo; S. Kar

Ultra-short, beamed source of laser-driven epithermal neutrons

S. R. Mirfayzi, T. Mori, D. Rusby, C. Armstrong, H. Ahmed, M. Borghesi, C.M. Brenner, R.J. Clarke, Z.E. Davidson, D. Doria, C. P. Jones, P. McKenna, D. Neely, T. B. Scott, A. Yogo, S. Kar

Research output: Contribution to journal › Article

Abstract

Development of intense neutron sources driven by laser will enable a range of scientific investigations and new opportunities for industrial and medical applications. In particular, an ultra-short, point-like source of epithermal neutrons using laser-driven ultra-short ion pulses would open new opportunities for many unprecedented time-resolved spectroscopic and imaging applications. This paper reports the first measurement of the ultra-short bursts of epithermal (sub-MeV) neutron beams using intense lasers, produced predominately by the endothermic 7Li(p,n)7Be reaction at the near energy threshold. Using a 6LiF scintillator in time-of-flight arrangement, epithermal neutrons of ∼ 107 n/sr/pulse in the range of 20-200 keV were measured, which intrinsically offers a beamed feature and ultra-short duration. The mechanism of epithermal neutron production and the crosscalibration of the diagnostic employed for extending the spectral measurements down to epithermal range are discussed.

Language	English
Number of pages	5
Journal	Applied Physics Letters
Publication status	Accepted/In press - 3 May 2019

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neutrons

lasers

neutron beams

neutron sources

pulses

point sources

scintillation counters

bursts

thresholds

ions

energy

Keywords

epithermal neutrons
laser-driven ultra-short ion pulses
intense lasers

Cite this

Mirfayzi, S. R., Mori, T., Rusby, D., Armstrong, C., Ahmed, H., Borghesi, M., ... Kar, S. (Accepted/In press). Ultra-short, beamed source of laser-driven epithermal neutrons. Applied Physics Letters.

Mirfayzi, S. R. ; Mori, T. ; Rusby, D. ; Armstrong, C. ; Ahmed, H. ; Borghesi, M. ; Brenner, C.M. ; Clarke, R.J. ; Davidson, Z.E. ; Doria, D. ; Jones, C. P. ; McKenna, P. ; Neely, D. ; Scott, T. B. ; Yogo, A. ; Kar, S. / Ultra-short, beamed source of laser-driven epithermal neutrons. In: Applied Physics Letters. 2019.

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abstract = "Development of intense neutron sources driven by laser will enable a range of scientific investigations and new opportunities for industrial and medical applications. In particular, an ultra-short, point-like source of epithermal neutrons using laser-driven ultra-short ion pulses would open new opportunities for many unprecedented time-resolved spectroscopic and imaging applications. This paper reports the first measurement of the ultra-short bursts of epithermal (sub-MeV) neutron beams using intense lasers, produced predominately by the endothermic 7Li(p,n)7Be reaction at the near energy threshold. Using a 6LiF scintillator in time-of-flight arrangement, epithermal neutrons of ∼ 107 n/sr/pulse in the range of 20-200 keV were measured, which intrinsically offers a beamed feature and ultra-short duration. The mechanism of epithermal neutron production and the crosscalibration of the diagnostic employed for extending the spectral measurements down to epithermal range are discussed.",

keywords = "epithermal neutrons, laser-driven ultra-short ion pulses, intense lasers",

author = "Mirfayzi, {S. R.} and T. Mori and D. Rusby and C. Armstrong and H. Ahmed and M. Borghesi and C.M. Brenner and R.J. Clarke and Z.E. Davidson and D. Doria and Jones, {C. P.} and P. McKenna and D. Neely and Scott, {T. B.} and A. Yogo and S. Kar",

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Mirfayzi, SR, Mori, T, Rusby, D, Armstrong, C, Ahmed, H, Borghesi, M, Brenner, CM, Clarke, RJ, Davidson, ZE, Doria, D, Jones, CP, McKenna, P, Neely, D, Scott, TB, Yogo, A & Kar, S 2019, 'Ultra-short, beamed source of laser-driven epithermal neutrons' Applied Physics Letters.

Ultra-short, beamed source of laser-driven epithermal neutrons. / Mirfayzi, S. R.; Mori, T.; Rusby, D.; Armstrong, C.; Ahmed, H.; Borghesi, M.; Brenner, C.M.; Clarke, R.J.; Davidson, Z.E.; Doria, D.; Jones, C. P.; McKenna, P.; Neely, D.; Scott, T. B.; Yogo, A.; Kar, S.

In: Applied Physics Letters, 03.05.2019.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Ultra-short, beamed source of laser-driven epithermal neutrons

AU - Mirfayzi, S. R.

AU - Mori, T.

AU - Rusby, D.

AU - Armstrong, C.

AU - Ahmed, H.

AU - Borghesi, M.

AU - Brenner, C.M.

AU - Clarke, R.J.

AU - Davidson, Z.E.

AU - Doria, D.

AU - Jones, C. P.

AU - McKenna, P.

AU - Neely, D.

AU - Scott, T. B.

AU - Yogo, A.

AU - Kar, S.

PY - 2019/5/3

Y1 - 2019/5/3

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AB - Development of intense neutron sources driven by laser will enable a range of scientific investigations and new opportunities for industrial and medical applications. In particular, an ultra-short, point-like source of epithermal neutrons using laser-driven ultra-short ion pulses would open new opportunities for many unprecedented time-resolved spectroscopic and imaging applications. This paper reports the first measurement of the ultra-short bursts of epithermal (sub-MeV) neutron beams using intense lasers, produced predominately by the endothermic 7Li(p,n)7Be reaction at the near energy threshold. Using a 6LiF scintillator in time-of-flight arrangement, epithermal neutrons of ∼ 107 n/sr/pulse in the range of 20-200 keV were measured, which intrinsically offers a beamed feature and ultra-short duration. The mechanism of epithermal neutron production and the crosscalibration of the diagnostic employed for extending the spectral measurements down to epithermal range are discussed.

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Mirfayzi SR, Mori T, Rusby D, Armstrong C, Ahmed H, Borghesi M et al. Ultra-short, beamed source of laser-driven epithermal neutrons. Applied Physics Letters. 2019 May 3.