Decay pattern of the pygmy dipole resonance in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mrow/><mml:mn>60</mml:mn></mml:msup></mml:math>Ni

Scheck, M.; Ponomarev, V. Yu.; Aumann, T.; Beller, J.; Fritzsche, M.; Isaak, J.; Kelley, J. H.; Kwan, E.; Pietralla, N.; Raut, R.; Romig, C.; Rusev, G.; Savran, D.; Sonnabend, K.; Tonchev, A. P.; Tornow, W.; Weller, H. R.; Zweidinger, M.

doi:10.1103/physrevc.87.051304

Cited by 50 publications

(55 citation statements)

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“…Recently, NRF measurements with quasi-monoenergetic photons at the High Intensity γ -Ray Source (HIγ S) [17,18] at Triangle Universities National Laboratory (TUNL) in Durham, NC, USA gave experimental insight in mean decay properties of dipole excited states in the energy region of the PDR [12,[19][20][21][22][23]. All of these measurements demonstrate that the decay via intermediate states cannot be neglected, however, the data do not answer the question how individual states behave.…”

Section: Introductionmentioning

confidence: 95%

Direct determination of ground-state transition widths of low-lying dipole states in 140 Ce with the self-absorption technique

et al. 2015

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The technique of self absorption has been applied for the first time to study the decay pattern of low-lying dipole states of 140 Ce. In particular, ground-state transition widths 0 and branching ratios 0/ to the ground state have been investigated in the energy domain of the pygmy dipole resonance. Relative self-absorption measurements allow for a model-independent determination of 0 . Without the need to perform a full spectroscopy of all decay channels, also the branching ratio to the ground state can be determined. The experiment on 140 Ce was conducted at the bremsstrahlung facility of the superconducting Darmstadt electron linear accelerator S-DALINAC. In total, the self-absorption and, thus, 0 were determined for 104 excited states of 140 Ce. The obtained results are presented and discussed with respect to simulations of γ cascades using the DICEBOX code.

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Section: Introductionmentioning

confidence: 95%

Direct determination of ground-state transition widths of low-lying dipole states in 140 Ce with the self-absorption technique

et al. 2015

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“…In addition, the shape of the photon flux can also be compared to results of the (γ,γ ) experiments carried out in parallel [25,26]. Again, no significant deviation to the photon flux obtained by us was observed.…”

Section: A Deconvolution Of the Photon Fluxmentioning

confidence: 74%

“…The experimental results on 96 Zr(γ,n) will be published separately. Furthermore, nuclear structure experiments were simultaneously carried out further downstream using the same photon beam [25,26].…”

Section: Irradiation and γ Countingmentioning

confidence: 99%

Determination of theCe142(γ,n)cross section using quasi-monoenergetic Compton backscattered
Sauerwein
¹
,
Sonnabend
²
,
Fritzsche
³

et al. 2014
Phys. Rev. C
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We describe an approach to calibrate SEE-based detectors in monoenergetic fields and apply the resulting semi-empiric responses to more general mixed-field cases in which a broad variety of particle species and energy spectra are involved. The calibration of the response functions is based both on experimental proton and neutron data and considerations derived from Monte Carlo simulations using the FLUKA code. The application environments include the quasi-monoenergetic neutrons at RCNP, the atmospheric-like VESUVIO spallation spectrum and the CHARM high-energy accelerator test facility.

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“…In the lower panel, the high-energy part of the γ-ray spectrum of one detector for the 24 Al decay is shown. All visible peaks are decay radiation from 24 Al and detector response. Note the low background thanks to the offline condition.…”

Section: Doppler-correction In a 60 Ni(pp'γ) 60 Ni Experimentsmentioning

confidence: 99%

Combining γ-ray and particle spectroscopy with SONIC@HORUS

Pickstone

Weinert

Farber

et al. 2017

Nuclear Instruments and Methods in Physics Research Section A:

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The particle spectrometer SONIC for particle-γ coincidence measurements was commissioned at the Institute for Nuclear Physics in Cologne, Germany. SONIC consists of up to 12 silicon ∆E-E telescopes with a total solid angle coverage of 9 %, and will complement HORUS, a γ-ray spectrometer with 14 HPGe detectors. The combined setup SONIC@HORUS is used to investigate the γ-decay behaviour of low-spin states up to the neutron separation threshold excited by light-ion inelastic scattering and transfer reactions using beams provided by a 10 MV FN Tandem accelerator. The particle-γ coincidence method will be presented using data from a 92 Mo(p,p'γ) experiment. In a 119 Sn(d,X) experiment, excellent particle identification has been achieved because of the good energy resolution of the silicon detectors of approximately 20 keV. Due to the non-negligible momentum transfer in the reaction, a Doppler correction of the detected γ-ray energy has to be performed, using the additional information from measuring the ejectile energy and direction. The high sensitivity of the setup is demonstrated by the results from a 94 Mo(p,p'γ) experiment, where small γ-decay branching ratios have been deduced.

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Decay pattern of the pygmy dipole resonance in60Ni

Cited by 50 publications

References 20 publications

Direct determination of ground-state transition widths of low-lying dipole states in 140 Ce with the self-absorption technique

Direct determination of ground-state transition widths of low-lying dipole states in 140 Ce with the self-absorption technique

Determination of theCe142(γ,n)cross section using quasi-monoenergetic Compton backscattered
Sauerwein
¹
,
Sonnabend
²
,
Fritzsche
³

et al. 2014
Phys. Rev. C
Self Cite

Combining γ-ray and particle spectroscopy with SONIC@HORUS

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Decay pattern of the pygmy dipole resonance in60Ni

Cited by 50 publications

References 20 publications

Direct determination of ground-state transition widths of low-lying dipole states in 140 Ce with the self-absorption technique

Direct determination of ground-state transition widths of low-lying dipole states in 140 Ce with the self-absorption technique

Determination of theCe142(γ,n)cross section using quasi-monoenergetic Compton backscatteredSauerwein1, Sonnabend2, Fritzsche3 et al. 2014Phys. Rev. CSelf Cite

Combining γ-ray and particle spectroscopy with SONIC@HORUS

Contact Info

Product

Resources

About

Determination of theCe142(γ,n)cross section using quasi-monoenergetic Compton backscattered
Sauerwein
¹
,
Sonnabend
²
,
Fritzsche
³

et al. 2014
Phys. Rev. C
Self Cite