Results 11 to 20 of about 20,584 (276)

Low-mass fission detector for the fission neutron spectrum measurement [PDF]

open access: yes, 2010
For the fission neutron spectrum measurement, the neutron energy is determined in a time-of-flight experiment by the time difference between the fission event and detection of the neutron. Therefore, the neutron energy resolution is directly determined by the time resolution of both neutron and fission detectors. For the fission detection, the detector
Wu, C Y   +4 more
openaire   +4 more sources

Fission Research at IRMM [PDF]

open access: yesEPJ Web of Conferences, 2010
Fission Research at JRC-IRMM has a longstanding tradition. The present paper is discussing recent investigations of fission fragment properties of 238 U(n,f), 234 U(n,f), prompt neutron emission in fission of 252 Cf(SF) as well as the prompt fission ...
Al-Adili A.   +6 more
doaj   +5 more sources

New fission-neutron-spectrum representation for ENDF [PDF]

open access: yes, 1982
A new representation of the prompt fission neutron spectrum is proposed for use in the Evaluated Nuclear Data File (ENDF). The proposal is made because a new theory exists by which the spectrum can be accurately predicted as a function of the fissioning nucleus and its excitation energy.
Madland, D.G.
openaire   +4 more sources

The 235U prompt fission neutron spectrum measured by the Chi-Nu project at LANSCE [PDF]

open access: yesEPJ Web of Conferences, 2017
The Chi-Nu experiment aims to accurately measure the prompt fission neutron spectrum for the major actinides. At the Los Alamos Neutron Science Center (LANSCE), fission can be induced with neutrons ranging from 0.7 MeV and above.
Gomez J.A.   +17 more
doaj   +2 more sources

Experimental Determination of the Antineutrino Spectrum of the Fission Products of $^{238}$U [PDF]

open access: yesPhysical review letters, 2013
An experiment was performed at the scientific neutron source FRM II in Garching to determine the cumulative antineutrino spectrum of the fission products of $^{238}$U. This was achieved by irradiating target foils of natural uranium with a thermal and a fast neutron beam and recording the emitted $β$-spectra with a gamma-suppressing electron-telescope.
Haag, N.   +6 more
openaire   +4 more sources

Angular distribution in the neutron-induced fission of actinides [PDF]

open access: yes, 2013
Above 1 MeV of incident neutron energy the fission fragment angular distribution (FFAD) has generally a strong anisotropic behavior due to the combination of the incident orbital momentum and the intrinsic spin of the fissioning nucleus.
Mengoni, A.
core   +4 more sources

Comprehensive Second-Order Adjoint Sensitivity Analysis Methodology (2nd-ASAM) Applied to a Subcritical Experimental Reactor Physics Benchmark. VI: Overall Impact of 1st- and 2nd-Order Sensitivities on Response Uncertainties

open access: yesEnergies, 2020
This work applies the Second-Order Adjoint Sensitivity Analysis Methodology (2nd-ASAM) to compute the 1st-order and unmixed 2nd-order sensitivities of a polyethylene-reflected plutonium (PERP) benchmark’s leakage response with respect to the benchmark’s ...
Dan G. Cacuci   +2 more
doaj   +1 more source

Development of parallel plate avalanche counters for prompt fission neutron spectrum measurement

open access: yesHe jishu, 2021
BackgroundThe prompt fission neutron spectrum (PFNS) is an important nuclear reaction data. Coincident measurement between neutron detectors and parallel plate avalanche counters (PPAC) is widely used to measure the PFNS below the energy of the neutron ...
ZHU Yiwei   +8 more
doaj   +1 more source

Method for calculating delayed gamma-ray response in the ACRR Central Cavity using MCNP [PDF]

open access: yesEPJ Web of Conferences, 2023
This document presents the process for a new method developed for the characterization of the delayed gamma-ray radiation fields in pulse reactors like the Annular Core Research Reactor (ACRR).
Moreno Melissa, Parma Edward
doaj   +1 more source

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