Experimental photoneutron cross sections of natural zirconium from 8 MeV to 134 MeV

Veyssière, A.; Beil, H.; Bergère, R.; Carlos, P.; Fagot, Joël; Leprêtre, A.; Miniac, A. De

doi:10.1007/bf01415483

Cited by 16 publications

(3 citation statements)

References 28 publications

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“…For energies above the GDR region, there is just one data set available from Saclay [14]. These data consist of the inclusive partial and total photoneutron cross sections from natural Zirconium up to 134 MeV, where they have reported neutron multiplicities with reasonable statistics up to seven particles.…”

Section: Photoneutron Cross Sections From Threshold To 140 Mevmentioning

confidence: 99%

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Photon-induced multiple particle emissions ofZr90andnatZr from 10 to 140 MeV

et al. 2007

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A comprehensive analysis of electrodisintegration yields of protons on 90 Zr is proposed taking into account the giant dipole resonance, isovector giant quadrupole resonance (IVGQR), and quasideuteron contributions to the total photoabsorption cross section from 10 to 140 MeV. The calculation applies the MCMC intranuclear cascade to address the direct and pre-equilibrium emissions and another Monte Carlo-based algorithm to describe the evaporation step. The final results of the total photoabsorption cross section for 90 Zr and relevant decay channels are obtained by fitting the (e, p) measurements from the National Bureau of Standards and show that multiple proton emissions dominate the photonuclear reactions at higher energies. These results provide a consistent explanation for the exotic and steady increase of the (e, p) yield and also a strong evidence of a IVGQR with a strength parameter compatible with the E2 energy-weighted sum rule. The inclusive photoneutron cross sections for 90 Zr and nat Zr, derived from these results and normalized with the (e, p) data, are in agreement within 10% with both Livermore and Saclay data up to 140 MeV.

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Section: Photoneutron Cross Sections From Threshold To 140 Mevmentioning

confidence: 99%

“…Finally, the partial and total photoneutron cross sections from natural Zirconium [14] are evaluated up to 140 MeV. These channels represent the major contribution to the total photoabsorption cross section, and they should be included in present analysis to provide a complete description of the reaction mechanisms in this mass range.…”

Section: Introductionmentioning

confidence: 99%

Photon-induced multiple particle emissions ofZr90andnatZr from 10 to 140 MeV

et al. 2007

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“…Nonetheless high quality evaluated photonuclear cross-sections have been compiled for many elements [1]. A number of workers [18][19][20][21] reported data on photon-induced reaction cross sections for zirconium isotopes using the activation technique but they are only for mono-energetic photons. Only one set of data is available on 96 Zr( , ) reaction using mono-energetic photon beam [22].…”

Section: Introductionmentioning

confidence: 99%

Photo-neutron cross-section of ⁹⁶Zr using bremsstrahlung radiation with end point energies of 10 and 12.5 MeV

et al. 2014

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The 96 Zr( , ) 95 Zr reaction cross-section was experimentally determined at end point bremsstrahlung energies of 10 and 12.5 MeV using off-line -ray spectrometric technique. The cross-section increases sharply from the end point energy of 10 to 12.5 MeV, which indicates the role of excitation energy. The reaction crosssection as a function of photon energy was also calculated theoretically using the TALYS 1.2 computer code. The flux weighted average value of the 96 Zr( , ) 95 Zr reaction cross-section for the end-point bremsstrahlung energies of 10 and 12.5 MeV was also calculated using the experimental and theoretical data of mono-energetic photons to compare with the present data. The cross-section given in the present work at end-point bremsstrahlung energy of 10 MeV is closer to the flux-weighted value of TALYS but higher than the literature data. On the other hand, at 12.5 MeV, it is higher than the flux weighted value of TALYS and the literature data. Keywords: 96 Zr( , ) 95 Zr reaction cross-sections, 197 Au( , ) 196 Au flux monitor, End point bremsstrahlung energy of 10 and 12.5 MeV, Off-line -ray spectrometric technique, TALYS calculation .

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Recent experimental studies of the total photonuclear cross-sections between 30 and 140 MeV

Bergère

1983

Nuov Cim A

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Experimental photoneutron cross sections of natural zirconium from 8 MeV to 134 MeV

Abstract: The inclusive partial photoneutron cross sections and the total photoneutron cross imax section o-(1)(E,~)= ~ o- (7, in...)

Cited by 16 publications

References 28 publications

Photon-induced multiple particle emissions ofZr90andnatZr from 10 to 140 MeV

Photon-induced multiple particle emissions ofZr90andnatZr from 10 to 140 MeV

Photo-neutron cross-section of ⁹⁶Zr using bremsstrahlung radiation with end point energies of 10 and 12.5 MeV

Recent experimental studies of the total photonuclear cross-sections between 30 and 140 MeV

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Experimental photoneutron cross sections of natural zirconium from 8 MeV to 134 MeV

Abstract: The inclusive partial photoneutron cross sections and the total photoneutron cross imax section o-(1)(E,~)= ~ o- (7, in...)

Cited by 16 publications

References 28 publications

Photon-induced multiple particle emissions ofZr90andnatZr from 10 to 140 MeV

Photon-induced multiple particle emissions ofZr90andnatZr from 10 to 140 MeV

Photo-neutron cross-section of 96Zr using bremsstrahlung radiation with end point energies of 10 and 12.5 MeV

Recent experimental studies of the total photonuclear cross-sections between 30 and 140 MeV

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Product

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Photo-neutron cross-section of ⁹⁶Zr using bremsstrahlung radiation with end point energies of 10 and 12.5 MeV