Détermination du spin et des paramètres des résonances pour 197Au+n DE 1000 eV à 2100 eV

Alves, R.N.; Julien, J.; Morgenstern, J.; Samour, C.

doi:10.1016/0375-9474(69)90548-x

Cited by 16 publications

(3 citation statements)

References 16 publications

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“…[8][9][10] by combining the results of different types of neutron cross-section measurements (i.e., transmission through thick and thin samples, capture, self-indication, and elastic scattering) and using the so-called area analysis [11]. From the resonance shape analysis of a transmission measurement Alves et al [12] determined resonance parameters from 1 to 2.5 keV. In the energy region 2.5-5 keV, capture data from Macklin et al [13] were combined with differential elastic scattering data from Hoffman et al [14].…”

Section: Introductionmentioning

confidence: 99%

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Au197(n,γ) cross section in the resonance region

Massimi¹,

Domingo‐Pardo²,

Vannini³

et al. 2010

Phys. Rev. C

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C. MASSIMI et al.PHYSICAL REVIEW C 81, 044616 (2010) The (n,γ ) cross section of 197 Au has been measured at n TOF in the resolved resonance region, up to 5 keV, with the aim of improving the accuracy in an energy range where it is not yet considered standard. The measurements were performed with two different experimental setup and detection techniques, the total energy method based on C 6 D 6 detectors, and the total absorption calorimetry based on a 4π BaF 2 array. By comparing the data collected with the two techniques, two accurate sets of neutron-capture yields have been obtained, which could be the basis for a new evaluation leading to an extended cross-section standard. Overall good agreement is found between the n TOF results and evaluated cross sections, with some significant exceptions for small resonances. A few resonances not included in the existing databases have also been observed.

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Section: Introductionmentioning

confidence: 99%

“…The capture yield for 197 Au and the one for elastic scattering for 12 C are calculated from the evaluated cross sections in the ENDF/B-VI library [45].…”

Section: Introductionmentioning

confidence: 99%

Au197(n,γ) cross section in the resonance region

Massimi¹,

Domingo‐Pardo²,

Vannini³

et al. 2010

Phys. Rev. C

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“…Resonances spins (1 + or 2 + ) were taken from Ref. [10]. In total, 281 resonances were fitted between 4.9 eV and 5 keV.…”

Section: New 197 Au+n Total Cross Section Data and R-matrix Analysismentioning

confidence: 99%

Attempting to Close the Loop on the Oslo Technique at 198Au: Constraining the Nuclear Spin Distribution

Koehler

Ullmann

Couture

et al. 2021

Compound-Nuclear Reactions

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From simultaneous R-matrix analysis of new and previous neutron total-and capture-cross-section data, we obtained total radiation widths, Γγ, for 77 197 Au+n resonances. Γγ distributions calculated according to the nuclear statistical model using published Oslo nuclear level density and photon strength functions for 198 Au are too narrow and too close together for the two s-wave spins compared to our new data. The calculation can be brought into agreement with the data by substantial modifications to the spin distribution in 198 Au as a function of excitation energy. As far as we know, the spin distribution currently is otherwise poorly constrained. The modified spin distribution changes the shapes of the NLD and PSF extracted using the Oslo technique and so could have broad implications.

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Au isotopes

Sukhoruchkin¹,

Soroko²,

Deriglazov³

Landolt-Börnstein - Group I Elementary Particles, Nuclei and Atoms

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Détermination du spin et des paramètres des résonances pour 197Au+n DE 1000 eV à 2100 eV

Cited by 16 publications

References 16 publications

Au197(n,γ) cross section in the resonance region

Au197(n,γ) cross section in the resonance region

Attempting to Close the Loop on the Oslo Technique at 198Au: Constraining the Nuclear Spin Distribution

Au isotopes

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