Energetic neutron beams generated from femtosecond laser plasma interactions

Zulick, C.; Dollar, F.; Chvykov, V.; Davis, J.; Kalinchenko, G.; Maksimchuk, A.; Petrov, G. M.; Raymond, A.; Thomas, A. G. R.; Willingale, L.; Yanovsky, V.; Krushelnick, K.
March 2013
Applied Physics Letters;3/25/2013, Vol. 102 Issue 12, p124101
Academic Journal
Experiments at the HERCULES laser facility have produced directional neutron beams with energies up to 16.8(±0.3) MeV using 12d(d,n)23He,73Li(p,n)47Be,and37Li(d,n)48Be reactions. Efficient 12Li(d,n)48Be reactions required the selective acceleration of deuterons through the introduction of a deuterated plastic or cryogenically frozen D2O layer on the surface of a thin film target. The measured neutron yield was ≤1.0 (±0.5)×107 neutrons/sr with a flux 6.2(±3.7) times higher in the forward direction than at 90°. This demonstrates that femtosecond lasers are capable of providing a time averaged neutron flux equivalent to commercial 12d(d,n)23He generators with the advantage of a directional beam with picosecond bunch duration.


Related Articles

  • Real-time dual frequency comb spectroscopy in the near infrared. Zhu, F.; Mohamed, T.; Strohaber, J.; Kolomenskii, A. A.; Udem, Th.; Schuessler, H. A. // Applied Physics Letters;3/25/2013, Vol. 102 Issue 12, p121116 

    We use two femtosecond lasers with slightly different repetition rates to perform real-time dual frequency comb spectroscopy in the near infrared. The difference between the repetition rates is δ = 4403 Hz, yielding a minimal time interval between subsequently measured interferograms and...

  • High-precision frequency measurements in the THz spectral region using an unstabilized femtosecond laser. Füser, Heiko; Judaschke, Rolf; Bieler, Mark // Applied Physics Letters;9/19/2011, Vol. 99 Issue 12, p121111 

    We perform high-precision frequency measurements in the THz frequency range using an unstabilized femtosecond laser. A simple and flexible algorithm is used to correct the beating signal resulting from the THz source and one comb line of the rectified optical comb for fluctuations of the laser...

  • Second harmonic generation in quantum cascade lasers pumped by femtosecond mid-infrared pulses. Liu, Sheng; Cai, Hong; Lalanne, Elaine; Liu, Peter Q.; Wang, Xiaojun; Gmachl, Claire; Johnson, Anthony M. // Applied Physics Letters;9/19/2011, Vol. 99 Issue 12, p122104 

    Second harmonic generation (SHG) pulses at λ ∼ 2.25 µm have been obtained from a 4.5 µm quantum cascade laser (QCL) when it is resonantly pumped by transverse magnetic polarized 120 fs, λ = 4.5 µm pulses through the QCL's front facet at room temperature. The measured SHG...

  • Fluorescent Properties of ZnO Nanostructures Fabricated by Hydrothermal Method. Zhiwei Dong; Bing Han; Shixiong Qian; Deying Chen // Journal of Nanomaterials;2012, p1 

    ZnO nanorods with mean diameter 200nm on different substrates were fabricated by hydrothermal method. Fluorescent properties of fabricated ZnO nanorods were researched by both linear and nonlinear excitation using femtosecond lasers. The damage threshold of productions on Si substrate irradiated...

  • Design Of A Femtosecond Blue Pulse Generation System By Pumping Of Kn Crystal With Cr:LiSAF Lasers. Karami, Hosein; Soltanifard, Mohammad Taghi; Aghbolaghi, Reza // International Journal of Fundamental Physical Sciences;Jun2013, Vol. 3 Issue 2, p24 

    In this paper we described and simulated generation of blue pulse (460nm) by nonlinear KN(KNbO3) crystal ,that pumped by femtosecond diode pumped Cr:LiSAF lasers. Our simulation show that, by focusing of laser oscillator output pulses with characteristics such as 860nm wavelength, 200fs,330MHz...

  • Mid-infrared dual-comb spectroscopy with 2.4 μm Cr2+:ZnSe femtosecond lasers. Bernhardt, B.; Sorokin, E.; Jacquet, P.; Thon, R.; Becker, T.; Sorokina, I. T.; Picqué, N.; Hänsch, T. W. // Applied Physics B: Lasers & Optics;Jul2010, Vol. 100 Issue 1, p3 

    The mid-infrared part of the electromagnetic spectrum is the so-called molecular fingerprint region because gases have tell-tale absorption features associated with molecular rovibrations. This region can be for instance exploited to detect small traces of environmental and toxic vapors in...

  • Investigation of the concentration goodness for some liquid drugs using light angular scattering. Al-Muslet, Nafie A.; Yosif, Rasha I.; Ahmed, Mubarak M. // Indian Journal of Science & Technology;Jun2011, Vol. 4 Issue 6, p632 

    In this work a simple setup was built to measure the angular scattering of laser light as an approach for testing the quality of some pharmaceutical solutions (conc.) and detect any change in that concentration with respect to the standard one suitable for desired dose. A laser diode with...

  • Bidirectional communication using delay coupled chaotic directly modulated semiconductor lasers. Krishna, Bindu; John, Manu; Nandakumaran, V. // Pramana: Journal of Physics;Feb2010, Vol. 74 Issue 2, p177 

    Chaotic synchronization of two directly modulated semiconductor lasers with negative delayed optoelectronic feedback is investigated and this scheme is found to be useful for efficient bidirectional communication between the lasers. A symmetric bidirectional coupling is identified as a suitable...

  • Highly Efficient High-Power Quasi-Continuous Diode Laser Bars for Pumping Solid-State Lasers Based on Yb-Containing Active Media. Katsavets, N. I.; Buchenkov, V. A.; Demidov, D. M.; Leus, R. V.; Iskandarov, M. O.; Nikitichev, A. A.; Ter-Martirosyan, A. L. // Technical Physics Letters;Dec2004, Vol. 30 Issue 12, p1039 

    Highly efficient high-power quasi-continuous diode laser bars (DLBs) emitting in the region of λ = 0.95μm have been developed for pumping solid-state lasers based on Yb-containing active media. The parameters of DLBs and the results of long-term tests are presented. The proposed DLBs are...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics