γ-ray cascade transitions in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow /><mml:mn>112</mml:mn></mml:msup></mml:math>Cd and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow /><mml:mn>114</mml:mn></mml:msup></mml:math>Cd following resonance capture of epithermal neutrons

Rusev, G.; Jändel, M.; Krtička, M.; Couture, A.; Taddeucci, T.N.; Ullmann, J. L.

doi:10.1103/physrevc.87.054603

Cited by 14 publications

(8 citation statements)

References 48 publications

(54 reference statements)

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“…Details of extraction of various types of spectra from experimental data were described elsewhere [44][45][46][47][48][49][50][51]. Here we list only basic facts related to the spectra compared in this paper.…”

Section: B Data Reductionmentioning

confidence: 99%

“…In reality, data on two-step [41][42][43] and multistep γ cascade (MSC) spectra [44][45][46][47][48][49][50][51] from radiative neutron capture can also be used for constraining or tuning the PSFs models. In these cases, the PSFs cannot be directly extracted from experimental data but tested and validated through a comparison between experimental data and their simulated counterparts based on different PSFs and LD models.…”

Section: Introductionmentioning

confidence: 99%

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Constraints on the dipole photon strength functions from experimental multistep cascade spectra

et al. 2019

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Viable theoretical predictions of photon strength functions (PSFs) covering the whole nuclear chart are of great interest for different nuclear applications, including, in particular, nuclear astrophysics. Recently, such a global PSF model consisting of axially deformed Hartree-Fock-Bogolyubov (HFB) + quasiparticle random phase approximation (QRPA) calculations with the D1M Gogny interaction and a phenomenological low-energy contribution was proposed. In the present paper, we test this model predictions against previously published data from measurements of multistep γ cascades following neutron capture on isolated resonances performed with the DANCE detector. Such data present a stringent test of the PSFs models, in particular for the properties of the M1 scissors mode and the possible low-energy PSFs enhancement. A detailed comparison is made for spectra obtained from resonances for spherical, quasispherical, and well-deformed nuclei. This comparison indicates that the location and strength of the scissors mode is reasonably described by the HFB + QRPA approach. Moreover, a low-energy PSF contribution, not predicted by the HFB + QRPA calculation of the photoabsorption PSF, should be present in all nuclei. A systematics of this low-energy contribution, assumed in the M1 PSF, is proposed.

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Section: B Data Reductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Constraints on the dipole photon strength functions from experimental multistep cascade spectra

et al. 2019

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“…The DANCE collaboration contributes significantly to improve our understanding of photon strength functions (PSF) as well as nuclear level densities (NLD) through dedicated measurements of neutron capture reactions on selected isotopes. Detailed studies of the capture gamma-ray cascades from compound nucleus yielded many results on spins and parities of neutron resonances and models of PSF and NLD [6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Current and Future Research at DANCE

Jändel

Baramsai

Couture

et al. 2015

EPJ Web of Conferences

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Abstract. An overview of the current experimental program on measurements of neutron capture and neutron induced fission at the Detector for Advanced Neutron Capture Experiments (DANCE) is presented. Three major projects are currently under way: 1) high precision measurements of neutron capture cross sections on Uranium isotopes, 2) research aimed at studies of the short-lived actinide isomer production in neutron capture on 235 U and 3) measurements of correlated data of fission observables. New projects include developments of auxiliary detectors to improve the capability of DANCE. We are building a compact, segmented NEUtron detector Array at DANCE (NEUANCE), which will be installed in the central cavity of the DANCE array. It will provide experimental information on prompt fission neutrons in coincidence with the prompt fission gamma-rays measured by 160 BaF 2 crystals of DANCE. Unique correlated data will be obtained for neutron capture and neutron-induced fission using the DANCE-NEUANCE experimental set up in the future.

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“…The upgrade of the DANCE data acquisition [7] will help to omit this problem by performing more accurate measurement of the low-energy γ-rays. 114 Cd reaction de-excites via many different cascades with an average multiplicity of 4 [2]. To reduce the size of the response matrix, we considered γ-ray cascades with multiplicity up to 4 and bin width ΔE = 0.5 MeV.…”

Section: -P3mentioning

confidence: 99%

“…We carried out a measurement at DANCE with a small-mass cadmium target highly enriched to 113 Cd collecting the γ-rays from the strongest resonance of the 113 Cd(n, γ) 114 Cd reaction at E n = 0.178 eV. The γ-ray cascades in 114 Cd were simulated with the code DICEBOX [1] using the results for the photon strength function (PSF) from our study of the neutron-capture γ-rays from 112 Cd and 114 Cd [2]. A DICEBOX realization represents a level scheme of the nucleus and assignment of all transition widths from a given state to all levels below it.…”

Section: Trial and Error Approachmentioning

confidence: 99%

Detector-Response Correction of Two-Dimensionalγ-Ray Spectra from Neutron Capture

Rusev

Jändel

Arnold

et al. 2015

EPJ Web of Conferences

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Abstract. The neutron-capture reaction produces a large variety of γ-ray cascades with different γ-ray multiplicities. A measured spectral distribution of these cascades for each γ-ray multiplicity is of importance to applications and studies of γ-ray statistical properties. The DANCE array, a 4π ball of 160 BaF 2 detectors, is an ideal tool for measurement of neutron-capture γ-rays. The high granularity of DANCE enables measurements of high-multiplicity γ-ray cascades. The measured two-dimensional spectra (γ-ray energy,γ-ray multiplicity) have to be corrected for the DANCE detector response in order to compare them with predictions of the statistical model or use them in applications. The detector-response correction problem becomes more difficult for a 4π detection system than for a single detector. A trial and error approach and an iterative decomposition of γ-ray multiplets, have been successfully applied to the detector-response correction. Applications of the decomposition methods are discussed for two-dimensional γ-ray spectra measured at DANCE from γ-ray sources and from the 10 B(n, γ) and 113 Cd(n, γ) reactions.

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

Cited by 14 publications

References 48 publications

Constraints on the dipole photon strength functions from experimental multistep cascade spectra

Constraints on the dipole photon strength functions from experimental multistep cascade spectra

Current and Future Research at DANCE

Detector-Response Correction of Two-Dimensionalγ-Ray Spectra from Neutron Capture

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