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With central densities as high as 5-10 times the nuclear saturation density, neutron stars exhibit extreme conditions that cannot be observed elsewhere. They are ideal astrophysical laboratories for probing the composition and properties of…

Solar and Stellar Astrophysics · Physics 2019-09-04 Sophia Han

Double-differential cross sections for light-ion (p, d, t, He-3 and alpha) production in oxygen, induced by 96 MeV neutrons are reported. Energy spectra are measured at eight laboratory angles from 20 degrees to 160 degrees in steps of 20…

Compact neutron imagers using double-scatter kinematic reconstruction are being designed for localization and characterization of special nuclear material. These neutron imaging systems rely on scintillators with a rapid prompt temporal…

Instrumentation and Detectors · Physics 2020-09-16 T. A. Laplace , B. L. Goldblum , J. A. Brown , D. L. Bleuel , C. A. Brand , G. Gabella , T. Jordan , C. Moore , N. Munshi , Z. W. Sweger , A. Ureche , E. Brubaker

We present the first measurements of the muon-induced neutron flux at the Boulby Underground Laboratory. The experiment was carried out with an 0.73 tonne liquid scintillator that also served as an anticoincidence system for the ZEPLIN-II…

The International Fusion Materials Irradiation Facility - Demo Oriented NEutron Source (IFMIF-DONES) is a single-sited novel Research Infrastructure for testing, validation and qualification of the materials to be used in a fusion reactor.…

In the past two decades, laser-accelerated ion sources and their applications have been intensely researched. Recently, it has been shown through experiments that proton beams with characteristics comparable to those obtained with solid…

Plasma Physics · Physics 2018-04-20 Dragos Tatomirescu , Daniel Vizman , Emmanuel d'Humières

We report the creation of super-high-flux gamma-rays with energy >8 MeV and photo-neutrons via the (g,n) reaction near giant dipole resonance energies (8 - 20 MeV), using the ~130 J Texas Petawatt laser to irradiate high-Z (Au, Pt, Re, W)…

Applied Physics · Physics 2025-02-18 E. Liang , W. Lo , B. Cage , E. Fang , S. Arora , K. Q. Zheng , H . Quvedo , S. A. Bruce , M. Spinks , E. Medina , A. Helal , T. Ditmire

A compact Liquid-Lithium Target (LiLiT) was built and tested with a high-power electron gun at Soreq Nuclear Research Center. The lithium target, to be bombarded by the high-intensity proton beam of the Soreq Applied Research Accelerator…

The work is devoted to development of hard electron antineutrino source with variable and regulated (controlled) spectrum. The high flux antineutrino source with hard antineutrino spectrum based on neutron activation of 7Li and subsequent…

Instrumentation and Detectors · Physics 2017-05-16 V. I. Lyashuk

We demonstrate and characterize a source of Li atoms made from direct metal laser sintered titanium. The source's outgassing rate is measured to be $5 \,(2)\cdot 10^{-7}$\,$\rm{Pa}~ \rm{L}~ \rm{s}^{-1}$ at a temperature $T=330\,^\circ$C,…

Instrumentation and Detectors · Physics 2018-05-22 Eric B. Norrgard , Daniel S. Barker , James A. Fedchak , Nikolai Klimov , Julia Scherschligt , Stephen P. Eckel

Thorium ions and molecules, recognized for their distinctive nuclear and atomic attributes, are central to numerous trapped-ion experiments globally. Our study introduces an effective, compact source of thorium ions produced via laser…

We characterize the neutron output of a deuterium-deuterium plasma fusion neutron generator, model 35-DD-W-S, manufactured by NSD/Gradel-Fusion. The measured energy spectrum is found to be dominated by neutron peaks at 2.2 MeV and 2.7 MeV.…

Instrumentation and Detectors · Physics 2017-11-23 R. F. Lang , J. Pienaar , E. Hogenbirk , D. Masson , R. Nolte , A Zimbal , S. Röttger , M. L. Benabderrahmane , G Bruno

Fast secondary neutrons created at the Brookhaven Linac Isotope Producer (BLIP) facility following proton irradiation were characterized by the foil activation technique and compared with FLUKA Monte Carlo simulations. The FLUKA-simulated…

Fast neutron beams are of relevance for many scientific and industrial applications. This paper explores fast neutron production using a TANDEM accelerator at the Legnaro National Laboratories, via an energetic ion beam (90 MeV $^{14}N$)…

The interaction of micro- and nano-structured target surfaces with high-power laser pulses is being widely investigated for its unprecedented absorption efficiency. We have developed vertically aligned metallic micro-pillar arrays for…

In this research paper, we investigate the decay of the proton into neutron, positron and electron neutrino in the presence of an external electromagnetic field with circular polarization. Different physical quantities related to this decay…

High Energy Physics - Phenomenology · Physics 2023-06-21 M. Ouhammou , M. Ouali , S. Taj , R. Benbrik , B. Manaut

Rotating and magnetized protoneutron stars (PNSs) may drive relativistic magneto-centrifugally accelerated winds as they cool immediately after core collapse. The wind fluid near the star is composed of neutrons and protons, and the…

High Energy Astrophysical Phenomena · Physics 2014-06-18 Kohta Murase , Basudeb Dasgupta , Todd A. Thompson

The production of polarized proton beams with multi-GeV energies in ultra-intense laser interaction with targets is studied with three-dimensional Particle-In-Cell simulations. A near-critical density plasma target with pre-polarized proton…

Plasma Physics · Physics 2021-08-04 X. F. Li , P. Gibbon , A. Hützen , M. Büscher , S. M. Weng , M. Chen , Z. M. Sheng

Laser ion acceleration is a promising concept for generation of fast ions using a compact laser-solid interaction setup. In this study, we theoretically investigate the feasibility of ion acceleration from the interaction of petawatt-scale…

Plasma Physics · Physics 2022-01-19 K. V. Lezhnin , S. V. Bulanov

Proposals exist and efforts are under way to construct pulsed spallation ultra-cold neutron (UCN) sources at accelerator laboratories around the world. At the Paul Scherrer Institut (PSI), Switzerland, and at the Los Alamos National…

Nuclear Experiment · Physics 2007-05-23 Klaus Kirch
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