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The decay of instable nuclei is being used in a broad range of applications from detector calibration to power sources. As the public acceptance of classical fission nuclear technology is decaying and its integral costs are enormous,…

Instrumentation and Detectors · Physics 2016-08-29 S. Möller , T. Wegener

A first set of computational studies of transmutation of spent nuclear fuel using compact tunable 14 MeV D-T fusion driven neutron sources is presenter. Where we study the controllability, time evolution, as well as effects of spatial…

Nuclear Theory · Physics 2021-09-21 Joshua Tanner , Ales Necas , Sydney Gales , Gerard Mourou , Toshiki Tajima

The electromagnetic polarizabilities of the nucleon are fundamental nucleon-structure observables that characterize its response to external electromagnetic fields. The neutron polarizabilities can be accessed from Compton-scattering data…

In this paper we report on a high current density ion beam profile diagnostics with a slit-based system as a reliable method, capable of high thermal load applications. The task arose in frames of a point-like neutron source development for…

We describe how thermally produced anti-electron neutrinos ($\bar\nu_e$) from the homologously collapsing core of a supermassive star ($M \ga 5\times10^4 M_\odot$) can lead to significant deuterium enrichment in the ejected envelope of such…

Astrophysics · Physics 2009-10-30 George M. Fuller , Xiangdong Shi

The vacuum arc ion source has evolved into a more or less standard laboratory tool for the production of high-current beams of metal ions, and is now used in a number of different embodiments at many laboratories around the world.…

Accelerator Physics · Physics 2014-04-03 I. Brown

Neutron sources can play a variety of roles in warhead verification. For transmission radiography, a source of directed high energy neutrons is required, while for applications to detect fissile isotopes, sub-MeV neutrons are preferred. The…

Instrumentation and Detectors · Physics 2025-03-19 Jihye Jeon , Erik P. Gilson , Michael Hepler , Alexander Glaser , Robert J. Goldston

The surface formation of NH3 and its deuterated isotopologues - NH2D, NHD2, and ND3 - is investigated at low temperatures through the simultaneous addition of hydrogen and deuterium atoms to nitrogen atoms in CO-rich interstellar ice…

Astrophysics of Galaxies · Physics 2017-05-26 Gleb Fedoseev , Sergio Ioppolo , Harold Linnartz

It is proposed to produce highly charged ions in the local potential traps formed by the rippled electron beam in a focusing magnetic field. In this method, the extremely high electron current densities can be attained on short length of…

Plasma Physics · Physics 2015-03-18 V. P. Ovsyannikov , A. V. Nefiodov

In this study, we try to extract $\omega n$, $\omega p$ and $\phi$N scattering lengths from the differential cross-section data of near-threshold $\omega$ and $\phi$ photoproductions not only to the energy at threshold t$_{thr}$, but also…

High Energy Physics - Phenomenology · Physics 2023-02-01 Chengdong Han , Wei Kou , Rong Wang , Xurong Chen

Nanoscale focused ion beams (FIBs) represent one of the most useful tools in nanotechnology, enabling nanofabrication via milling and gas-assisted deposition, microscopy and microanalysis, and selective, spatially resolved doping of…

Atomic Physics · Physics 2021-06-09 J. J. McClelland , A. V. Steele , B. Knuffman , K. A. Twedt , A. Schwarzkopf , T. M. Wilson

Neutron Resonance Transmission Analysis (NRTA) is a spectroscopic technique which uses the resonant absorption of neutrons in the epithermal range to infer the isotopic composition of an object. This spectroscopic technique has relevance in…

Instrumentation and Detectors · Physics 2021-05-19 Ethan A. Klein , Farheen Naqvi , Jacob E. Bickus , Hin Y. Lee , Robert J. Goldston , Areg Danagoulian

Sealed neutron tubes have a wide range of applications, and the ion source is their core component. Penning ion sources commonly suffer from issues such as uneven magnetic field distribution and a low proportion of monoatomic ions.…

A short-pulse laser-driven deuteron beam is generated in the relativistic transparency regime and aimed at a beryllium converter to generate neutrons at the TRIDENT laser facility. These prompt neutrons have been used for active…

The basic principles of design for the compact ion source of new generation are presented. The device uses the local ion trap created by the axial electron beam rippled in a thick magnetic lens. In accordance with this feature, the ion…

Plasma Physics · Physics 2015-06-02 V. P. Ovsyannikov , A. V. Nefiodov

This paper presents a simulation study of a permanent magnet electron cyclotron resonance ion source (ECRIS) with a minimum-B quadrupole magnetic field topology. The magnetic field is made to conform to conventional ECRIS with…

Accelerator Physics · Physics 2020-06-16 T. Kalvas , O. Tarvainen , V. Toivanen , H. Koivisto

A thin coating of thorium on aluminium substrates with the areal density of 110 to 130 $\mu g/cm^2$ is developed over a circular area of 22 mm diameter by using the electrodeposition method. An electrodeposition system is fabricated to…

Instrumentation and Detectors · Physics 2023-03-28 Dal-Ho Moon , Vivek Chavan , Vasant Bhoraskar , Yeong Hoon Jeong , Jung Ho Park , Su-Jeong Suh , Seung-Woo Hong

The production of electron-positron pairs in a vacuum neutron star magnetosphere is investigated for both low (compared to the Schwinger one) and high magnetic fields. The case of a strong longitudinal electric field where the produced…

High Energy Astrophysical Phenomena · Physics 2011-11-02 Ya. N. Istomin , D. N. Sob'yanin

Ion source modification is proposed for efficient production of ion beam and extending of operating Lifetime. Ionization efficiency of the Bernas type ion source has been improved by using a small anode-thin rod, oriented along the magnetic…

Plasma Physics · Physics 2019-12-10 V Dudnikov , G Dudnikova , A Dudnikov

A metal-oxide film can be used as a hydrogen-isotope permeation barrier in the fuel circulation system for nuclear fusion. We fabricated Er$_2$O$_3$ thin film on a type 316L stainless-steel substrate by using a metal-organic chemical vapor…

Applied Physics · Physics 2020-01-08 Halim Choi , Y. H. Shin , Yongmin Kim