Fourth-generation spallation neutron target-moderator-reflector-shield assembly at the Manuel Lujan Jr. neutron scattering center

Mocko, M.; Muhrer, G.

doi:10.1016/j.nima.2012.11.103

Cited by 49 publications

(36 citation statements)

References 10 publications

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“…The detector array is located at the end of a flight path 20.25 m from the neutron source. Spallation neutrons are produced at the source by bombarding a tungsten target with 800-MeV protons at a 20 Hz repetition rate; the neutrons are then thermalized with a water moderator [52]. The incident neutron energy spectrum produced, determined by the time-of-flight difference between event detection and the beam pulse, spans an energy range from thermal to several hundred keV.…”

Section: Methodsmentioning

confidence: 99%

Measurement of theAm242mneutron-induced reaction cross sections

Buckner

Henderson

et al. 2017

Phys. Rev. C

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The neutron-induced reaction cross sections of 242m Am were measured at the Los Alamos Neutron Science Center using the Detector for Advanced Neutron-Capture Experiments array along with a compact parallel-plate avalanche counter for fission-fragment detection. A new neutron-capture cross section was determined, and the absolute scale was set according to a concurrent measurement of the well-known 242m Am(n,f) cross section. The (n,γ) cross section was measured from thermal to an incident energy of 1 eV at which point the data quality was limited by the reaction yield in the laboratory. Our new 242m Am fission cross section was normalized to ENDF/B-VII.1 to set the absolute scale, and it agreed well with the (n,f) cross section reported by Browne et al. from thermal energy to 1 keV. The average absolute capture-to-fission ratio was determined from thermal to En = 0.1 eV, and it was found to be 26(4)% as opposed to the ratio of 19% from the ENDF/B-VII.1 evaluation.

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Section: Methodsmentioning

confidence: 99%

Measurement of theAm242mneutron-induced reaction cross sections

Buckner

Henderson

et al. 2017

Phys. Rev. C

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“…The collimator consists of four sections with a total length of 3 m. A detailed description of the neutron facility at the Lujan Center and the properties of the beam can be found in Refs. [19,20].…”

Section: Methodsmentioning

confidence: 99%

γ-ray cascade transitions in112Cd and114Cd following resonance capture of epithermal neutrons

et al. 2013

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“…A four-day long neutron-capture experiment on 97 Mo was performed at neutron flight path 14 at LANSCE [14,15]. Spallation neutrons were produced by irradiation of a tungsten target with 800-MeV protons with a repetition rate of 20 Hz.…”

Section: Experiments and Data Processing A Experimental Detailsmentioning

confidence: 99%

“…The measurement was undertaken with the DANCE system [12,13] installed at a beam of the Lujan Neutron Scattering Center at the Los Alamos Neutron Science Center (LANSCE) [14,15]. Results of our analysis of these spectra with the statistical model are presented in this paper.…”

Section: Introductionmentioning

confidence: 99%

Measurement of theMo97(n,γ)reaction with the DANCEγcalorimeter array

et al. 2015

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Spectra of γ rays following the 97 Mo(n, γ) reaction were measured as a function of incident neutron energy with the DANCE (Detector for Advanced Neutron Capture Experiments) array of 160 BaF2 scintillation detectors at the Los Alamos Neutron Science Center using an enriched 97 Mo target. These spectra were used for the assignment of spins of the 97 Mo resonances up to neutron energy En = 1.7 keV, as well as in the study of photon strength functions (PSFs) in 98 Mo. Analysis of the spectra with the nuclear statistical model showed that they can be well reproduced with the same PSF models which well described the γ decay following slow neutron capture in 95 Mo. On the other hand, the spectra are inconsistent with PSFs describing some other experimental data in 98 Mo.

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Fourth-generation spallation neutron target-moderator-reflector-shield assembly at the Manuel Lujan Jr. neutron scattering center

Cited by 49 publications

References 10 publications

Measurement of theAm242mneutron-induced reaction cross sections

Measurement of theAm242mneutron-induced reaction cross sections

γ-ray cascade transitions in112Cd and114Cd following resonance capture of epithermal neutrons

Measurement of theMo97(n,γ)reaction with the DANCEγcalorimeter array

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