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About 10,000 papers for “Neutron source”

Neutron Source Reactions

M. Drosg · 2003

Data files with computer codes for 59 monoenergetic neutron source reactions Version 2.2 prepared by

Cited by 0

tokamak-neutron-source

Coleman, M., Cook, J. E., Eade, T. et al. · Zenodo (CERN European Organization for Nuclear Research) · 2025

What's Changed 📝 Add classifiers and urls to pyproject by @je-cook in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/53 Added an AUTO option for ReactivityMethod by @OceanNuclear in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/50 ⬆️ Update jetto-tools by @je-cook in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/46 🚨 Pre-commit update by @je-cook in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/54 Minor flux plotting fixes by @CoronelBuendia in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/55 Full Changelog: https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/compare/v0.1.2...v0.1.3

Cited by 0Open access

SPALLATION NEUTRON SOURCE

John P. Shanahan, John Patrick Shanahan · 2003

Part of the Health and Medical Physics Commons, and the Nuclear Commons This Thesis is brought to you for free and open access by the Transmutation Research Program Projects at Digital Scholarship@UNLV. It has been accepted for inclusion in Transmutation Sciences Physics (TRP) by an authorized administrator of Digital Scholarship@UNLV. For more information, please contact

Cited by 0

Pulsed neutron source

Bliss, Henry Edison, Kaplan, Irving, 1912-, Thompson, Theos Jardin, 1918-1970 · DSpace@MIT (Massachusetts Institute of Technology) · 1966

Also issued as an Sc. D. thesis, Massachusetts Institute of Technology. Dept. of Nuclear Engineering, 1967

Cited by 0Open access

tokamak-neutron-source

Coleman, M., Cook, J. E., Eade, T. et al. · Zenodo (CERN European Organization for Nuclear Research) · 2025

What's Changed 📝 Zenodo DOI by @je-cook in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/40 🐛 Fix MathJax - Add extra javascript line by @je-cook in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/42 Clarify normalised equilibrium coordinates by @CoronelBuendia in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/41 Some minors by @je-cook in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/43 Doc eq fixes by @CoronelBuendia in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/44 Full Changelog: https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/compare/v0.1.0...v0.1.1

Cited by 0Open access

Portable Neutron Source

Davis, J., Petrov, G. M. · Defense Technical Information Center (DTIC) · 2008

The angular distribution of neutrons formed in nuclear fusion reactions of a high-energy deuteron beam with a deuterated polyethylene (CD2) was investigated with a Monte Carlo ion beam-target deposition model. The initial conditions were obtained from a two-dimensional particle-in-cell laser-target deposition model. The neutron yield and its angular distribution were studied as a function of peak laser intensity, laser pulse duration and primary target thickness. The proposed scheme for neutron production delivers a typical neutron yield of 10E+5-10E+7 neutrons/ion and 10E+5-10E+7 neutrons/Joule laser energy.

Cited by 0

Cf252 neutron source

G. N. Moshkin, N.D. Tyufyakov, A. S. Shtan' et al. · Atomic Energy · 1969

Cited by 0

tokamak-neutron-source

Coleman, M., Cook, J. E., Eade, T. et al. · Zenodo (CERN European Organization for Nuclear Research) · 2025

First Release What's Changed 🐛 Fix converage hatch script by @je-cook in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/10 Add PROCESS benchmark by @CoronelBuendia in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/8 👷 Integration test infrastructure by @je-cook in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/11 Add neutron energy spectra by @CoronelBuendia in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/9 A few infrastructure improvements by @je-cook in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/12 Remove log-linear interpolation by @CoronelBuendia in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/14 Units and docstrings by @CoronelBuendia in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/17 Double T-T neutrons by @CoronelBuendia in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/18 Add test for JETTO EQDSK and fix sqrt(-0.0) bug by @CoronelBuendia in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/19 JETTO read implimentation by @teade in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/20 Add public JETTO test files by @CoronelBuendia in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/27 📝 Enable docs deployment on release by @je-cook in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/23 👷 Docs ci with failures by @je-cook in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/28 Add integration test (to_openmc_source) by @OceanNuclear in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/15 👷 Test plotting helpers by @je-cook in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/34 Normalise source to 1 [neutrons/s] by @CoronelBuendia in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/35 Added an 'auto' method for selecting the best neutron spectrum method. by @OceanNuclear in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/36 Produce a more explainable/readable neutron spectrum when Gaussian Ballabio distribution is chosen. by @OceanNuclear in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/32 Reduce error verbosity by @OceanNuclear in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/30 SDEF writer by @teade in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/31 New Contributors @CoronelBuendia made their first contribution in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/8 @teade made their first contribution in https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/pull/20 Full Changelog: https://github.com/Fusion-Power-Plant-Framework/tokamak-neutron-source/commits/v0.1.0

Cited by 0Open access

The neutron source

Fundamental and applied nuclear physics series/Series in fundamental and applied nuclear physics series · 2003

Cited by 3

Status of the advanced neutron source. [Advanced Neutron Source Reactor]

Hayter, John B. · University of North Texas Digital Library (University of North Texas) · 1990

Research reactors in the United States are becoming more and more outdated, at a time when neutron scattering is being recognized as an increasingly important technique in areas vital to the US scientific and technological future. The last US research reactor was constructed over 25 years ago, whereas new facilities have been built or are under construction in Japan, Russia and, especially, Western Europe, which now has a commanding lead in this important field. Concern over this situation in the early 1980's by a number of organizations, including the National Academy of Sciences, led to a recommendation that design work start urgently on an advanced US neutron research facility. This recommendation is realized in the Advanced Neutron Source Project. The centerpiece of the Advanced Neutron Source will be a new research reactor of unprecedented flux (>7.5 {times} 10{sup 19} m{sup {minus}2}{center dot}s{sup {minus}1}), equipped with a wide variety of state-of-the-art spectrometers and diffractometers on hot, thermal, and cold neutron beams. Very cold and ultracold neutron beams will also be provided for specialized experiments. This paper will discuss the current status of the design and the plans for scattering instrumentation. 5 refs.

Cited by 0Open access

Reactivity studies on the advanced neutron source. [Advanced Neutron Source]

J.M. Ryskamp, Everett Redmond, C.D. Fletcher · University of North Texas Digital Library (University of North Texas) · 1990

An Advanced Neutron Source (ANS) with a peak thermal neutron flux of about 8.5 {times} 10{sup 19} m{sup {minus}2}s{sup {minus}1} is being designed for condensed matter physics, materials science, isotope production, and fundamental physics research. The ANS is a new reactor-based research facility being planned by Oak Ridge National Laboratory (ORNL) to meet the need for an intense steady-state source of neutrons. The design effort is currently in the conceptual phase. A reference reactor design has been selected in order to examine the safety, performance, and costs associated with this one design. The ANS Project has an established, documented safety philosophy, and safety-related design criteria are currently being established. The purpose of this paper is to present analyses of safety aspects of the reference reactor design that are related to core reactivity events. These analyses include control rod worth, shutdown rod worth, heavy water voiding, neutron beam tube flooding, light water ingress, and single fuel element criticality. Understanding these safety aspects will allow us to make design modifications that improve the reactor safety and achieve the safety related design criteria. 8 refs., 3 tabs.

Cited by 0Open access

Advanced Neutron Source equipment data base. [Advanced Neutron Source Facility]

D.B. Coffin · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1990

The Advanced Neutron Source (ANS) is a new experimental facility planned to meet the national need for an intense, steady-state source of neutrons. It will be open for use by scientists from universities, industry, and other federal laboratories. The ANS will be equipped with an initial complement of advanced instruments for neutron scattering and nuclear physics research, with facilities for isotope production and for the study of materials in high radiation fields. The central structure is a 60-m ({approximately}200-ft) diam cylindrical, domed reactor building. This building will house the reactor itself, with its lower floors dedicated to beam and irradiation experiments and with a high-bay floor dedicated to reactor operations. A reactor support building, to be adjacent to the reactor building, will house other large reactor equipment and the general support equipment not located in the reactor building. The primary heat exchanger and circulating pumps will be located in cell banks within reactor containment. The guide hall building, connected to the reactor dome outside reactor containment, is dedicated to beam experiment use. The fourth building will be an office building serving both the extensive user community and the reactor operations staff. These buildings will contain many of the systems needed for operation of the ANS and will be comprised of equipment requiring specification of performance, test, and operating parameters. The number of equipment items, the possibility for multiple application of a particular piece of equipment, and the need for a single source of information for all equipment led to a requirement to develop and equipment-related data base. 3 refs., 2 figs., 1 tab.

Cited by 0Open access

Spallation neutron source (SNS)

Marion M. White for the SNS Project · AIP conference proceedings · 2002

The Spallation Neutron Source [1], located at Oak Ridge, TN, is a state-of-the-art neutron-scattering facility presently under construction as a collaborative effort of six national laboratories. The facility is comprised of a high-power particle-accelerator system, a liquid-mercury target-moderator system, and a suite of world-class scientific instruments. One-ms-long negative-hydrogen-ion (H−) pulses are produced by an ion source. The ion beam is accelerated to 185 MeV by normal conducting (NC) linear accelerator (linac) cavities, and further accelerated to 1 GeV by a superconducting linac [2]. The acceleration is accomplished by means of niobium superconducting radiofrequency (SRF) cavities that operate at 2.1K. The linac beam is stacked in a compressor ring, and 695-ns-long pulses are extracted onto the target at a 60-Hz rate. Neutrons are produced by spallation in the mercury, and their energy is moderated to useable levels, in part by supercritical hydrogen moderators. The simultaneous performance goals of more than one MW of initial proton beam power, 95% facility availability, and the desire for hands-on maintenance capability in the accelerator complex place significant demands on the performance and operational reliability of the technical and conventional systems. An overview of the SNS facility, including its purpose, major components, and a summary of the present status is presented, with particular emphasis on the superconducting linac and the cryogenic moderators.

Cited by 21

Pulsed Cold Neutron Source

Kazuhiko Inoue, Norio OTOMO · Journal of Nuclear Science and Technology · 1976

Abstract A solid methane cold neutron source has been installed in a 45 MeV electron linear accelerator pulsed neutron source. A cold neutron gain factor of 40 has been obtained, and the device has shown a record of safe for extended periods. A description is given of the facility and the performance obtained therewith.

Cited by 1

Neutron source at Rutherford

CERN · CERN Bulletin · 1976

Neutron source at RutherfordBeams of neutrons are playing an increasingly important role in the investigation of the structure of matter but, in the constant search for new and better experimental facilities, the limitations of fission reactors as neu tron sources are becoming more and more evident.Scientists are likely to turn to accelerator based systems for improved neutron sources and proton synchrotrons could soon be in use as the 'next generation' of neutron sources.Low energy neutron beams are widely used by physicists, chemists, materials scientists, biologists, etc., to investigate the structure and properties of a wide range of materials including alloys, defect solids, liquid crystals, ferroelectrics, amorphous polymers, organic molecules and membranes and macromolecules such as proteins and viruses.As is the case with high energy physics, few Universities have their own experimental facilities for neutron beam research.

Cited by 0Open access

Neutron source strength calibrations /

McGarry, E. Dale., Boswell, Edward W., United States. National Bureau of Standards. · The Journal of the Abraham Lincoln Association

Cited by 0Open access