English
Related papers

Related papers: Improvised Nuclear Weapons with 60%-Enriched Urani…

200 papers

Production cross sections for neutron-rich nuclei from the fragmentation of a 76Ge beam at 132 MeV/u were measured. The longitudinal momentum distributions of 34 neutron-rich isotopes of elements 13 <= Z <= 27 were scanned using a novel…

We investigate the problem of detecting the presence of clandestine neutron sources, such as would be produced by nuclear weapons containing plutonium, within cargo containers. Small, simple and economical semiconductor photodiode detectors…

Physics and Society · Physics 2012-05-22 J. I. Katz

The instantaneous charge state of uranium ions traveling through a fully ionized hydrogen plasma has been theoretically studied and compared with one of the first energy loss experiments in plasmas, carried out at GSI-Darmstadt by Hoffmann…

Plasma Physics · Physics 2017-04-26 Roberto Morales , Manuel D. Barriga-Carrasco , David Casas

The maximum achievable temperature (energy density) and minimum kinetic energy required for the formation of a baryon-rich quark-gluon plasma formed at central rapidity in small impact parameter nuclear collisions is estimated. A possible…

Nuclear Theory · Physics 2014-11-18 Michael Danos , Johann Rafelski

A recent 15 parts-per-million (ppm) experiment on muonic hydrogen found a major discrepancy with QED and independent nuclear size determinations. Here we find a significant discrepancy in a different type of exotic atom, a medium-Z nucleus…

The results of measurements and computer simulations are presented for the yields of residual product nuclei in thin targets: U-nat irradiated by 0.1, 0.8, 1.2, and 1.6 GeV and Tc-99 irradiated by 0.2, 0.8, 1.0, 1.4, and 1.6 GeV protons.…

The paper considers an opportunity of detecting explosives by using radiation capture of a neutron with nitrogen nucleus. Proton LINAC is offered as the neutron source with the following parameters: proton energy five Mega electron Volts ,…

Accelerator Physics · Physics 2016-06-27 S. N. Dolya

Smuggling of special nuclear materials (SNM) and nuclear devices through borders and ports of entry constitutes a major risk to global security. Technologies are needed to reliably screen the flow of commerce for the presence of high-$Z$…

Applied Physics · Physics 2020-08-25 Hin Y. Lee , Brian S. Henderson , Roberts G. Nelson , Areg Danagoulian

Fusion power systems can in principle be used to make significant amounts of fissile material. To do so, an operator would have to introduce fertile material, such as uranium-238, in a suitable region of the reactor where it is exposed to…

Instrumentation and Detectors · Physics 2025-08-25 Alexander Glaser , Robert J. Goldston , Patrick Huber

The cross sections for the formation of five residual radionuclides (72Se, 97Zr, 112Pd, 125Sb, and 147Nb) from 40- to 200-MeV proton irradiation of thorium have been measured and are reported. The atomic masses of these fragments span the…

The 232U content of various uranium-bearing items was measured using low-background gamma spectrometry. The method is independent of the measurement geometry, sample form and chemical composition. Since 232U is an artificially produced…

Nuclear Experiment · Physics 2015-08-10 Jozsef Zsigrai , Tam Cong Nguyen , Andrey Berlizov

Studies on the isospin of fragments resulting from the disassembly of highly excited large thermal-like nuclear emitting sources, formed in the ^{197}Au + ^{197}Au reaction at 35 MeV/nucleon beam energy, are presented. Two different decay…

The multinucleon transfer process is one promising approach for producing neutron-rich heavy nuclei. The favorable projectile-target combinations play a key role in experiments. As one important approach to investigate the multinucleon…

Nuclear Theory · Physics 2020-06-24 Long Zhu

Type Ia supernova (SNIa) explosions synthesize a few tenths to several tenths of a solar mass, whose composition is the result of incomplete silicon burning that reaches peak temperatures of 4 GK to 5 GK. The elemental abundances are…

Solar and Stellar Astrophysics · Physics 2013-01-22 E. Bravo

The French-German Research Institute (ISL) has several railguns installed, the largest of these is the PEGASUS accelerator. It is a 6m long, 4x4 cm2 caliber distributed energy supply (DES) railgun. It has a 10 MJ capacitor bank as energy…

Plasma Physics · Physics 2023-07-19 Stephan Hundertmark , Markus Schneider , Dejian Simicic , Gregory Vincent

Neutron Resonance Transmission Analysis (NRTA) was explored as an arms control verification approach to support potential future nuclear weapon limiting treaties. A compact and portable neutron Time of Flight (ToF) system was developed to…

Motivated by the recent measurement of the primeval abundance of deuterium, we re-examine the nuclear inputs to big-bang nucleosynthesis (BBN). Using Monte-Carlo realization of the nuclear cross-section data to directly estimate the…

Astrophysics · Physics 2009-10-31 Scott Burles , Kenneth M. Nollett , James N. Truran , Michael S. Turner

We study soft hadron production in relativistic heavy ion collisions in a wide range of reaction energy, 4.8 GeV <sqrt{s_ NN}<200 GeV, and make predictions about yields of particles using the statistical hadronization model. In fits to…

Nuclear Theory · Physics 2008-11-26 Jean Letessier , Johann Rafelski

Railguns are capable to far exceed the muzzle energies of current naval deck guns. Therefore one of the most promising scenario for the future application of railguns in naval warfare is the long range artillery. Hypervelocity projectiles…

Plasma Physics · Physics 2017-09-12 S. Hundertmark , G. Vincent , D. Simicic

We simulate fusion in a Z-pinch; where the load is a xenon-plasma liner imploding onto a deuterium-tritium plasma target and the driver is a 2 MJ, 17 MA, 95 ns risetime pulser. The implosion system is modeled using the dynamic, 2-1/2 D,…

Plasma Physics · Physics 2009-11-13 H. U. Rahman , F. J. Wessel , N. Rostoker , P. Ney