Abstract
| Original language | English |
|---|---|
| Number of pages | 5 |
| Journal | Applied Physics Letters |
| Publication status | Accepted/In press - 3 May 2019 |
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Keywords
- epithermal neutrons
- laser-driven ultra-short ion pulses
- intense lasers
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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
N2 - 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.
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.
KW - epithermal neutrons
KW - laser-driven ultra-short ion pulses
KW - intense lasers
UR - https://aip.scitation.org/journal/apl
M3 - Article
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
ER -