Measurements of (n,γ) neutron capture cross-sections with liquid scintillator detectors

Wilson, J.; Haas, Brian J.; Boyer, S.; Dassié, D.; Barreau, G.; Aïche, M.; Czájkowski, S.; Grosjean, C.; Guiral, A.

doi:10.1016/s0168-9002(03)01944-2

Cited by 25 publications

(17 citation statements)

References 5 publications

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“…The PHWT is based on the off-line modification of the response function of the detector in such a way that the efficiency for capture cascades becomes proportional to the total γ -ray energy released in the event, independent of cascade multiplicity and the spectral shape of the γ spectrum [22][23][24]. The normalization to a reference cross section was performed by means of the saturated resonance technique [25] using the prominent 4.9-eV resonance in 197 Au.…”

Section: Determination Of Capture Yieldsmentioning

confidence: 99%

TheZr92(n,γ) reaction and its implications for stellar nucleosynthesis

Tagliente¹,

Milazzo²,

Fujii³

et al. 2010

Phys. Rev. C

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Because the relatively small neutron capture cross sections of the zirconium isotopes are difficult to measure, the results of previous measurements are often not adequate for a number of problems in astrophysics and nuclear 0556-2813/2010/81(5)/055801 (9) 055801-1 ©2010 The American Physical Society G. TAGLIENTE et al.PHYSICAL REVIEW C 81, 055801 (2010) technology. Therefore, the 92 Zr(n,γ ) cross section has been remeasured at the CERN n TOF facility, providing a set of improved parameters for 44 resonances in the neutron energy range up to 40 keV. With this information the cross-section uncertainties in the keV region could be reduced to 5% as required for s-process nucleosynthesis studies and technological applications.

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Section: Determination Of Capture Yieldsmentioning

confidence: 99%

TheZr92(n,γ) reaction and its implications for stellar nucleosynthesis

Tagliente¹,

Milazzo²,

Fujii³

et al. 2010

Phys. Rev. C

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“…This method, known as the pulse height weighting technique (PHWT), is described extensively elsewhere [41][42][43].…”

Section: B Determination Of the Capture Yieldmentioning

confidence: 99%

Neutron capture cross section ofTh232measured at the n_TOF facility at CERN in the unresolved resonance region up to 1 MeV

Aerts¹,

Fujii²,

Vlastou³

et al. 2006

Phys. Rev. C

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We have measured the neutron capture reaction yield of 232 Th at the neutron time-of-flight facility n TOF at CERN in the energy range from 1 eV to 1 MeV. The average capture cross section has been extracted in the energy range from 4 keV up to 1 MeV with an overall accuracy better than 4%. An independent IAEA evaluation shows good agreement with the data. The average cross section has been expressed in terms of average resonance parameters using the partial waves = 0, 1, and 2.

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“…This technique allows one to extract the cascade detection efficiency independently from the measured data. It was used in previous surrogate studies using the 232 Th( 3 He,p) reaction [10,11]. Once the detection efficiency is determined, we apply equation (8) figure 3 show that our surrogate data present big discrepancies with respect to the neutron-induced data, while we observe a very good agreement with the 176 Lu(γ,γ) calculation at low energies.…”

Section: Lu* Reactionmentioning

confidence: 65%

Neutron-induced cross sections of short-lived nuclei via the surrogate reaction method

Boutoux

Jurado

Méot

et al. 2012

EPJ Web of Conferences

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Abstract. The measurement of neutron-induced cross sections of short-lived nuclei is extremely difficult due to the radioactivity of the samples. The surrogate reaction method is an indirect way of determining cross sections for nuclear reactions that proceed through a compound nucleus. This method presents the advantage that the target material can be stable or less radioactive than the material required for a neutroninduced measurement. We have successfully used the surrogate reaction method to extract neutron-induced fission cross sections of various short-lived actinides. In this work, we investigate whether this technique can be used to determine neutron-induced capture cross sections in the rare-earth region.

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Measurements of (n,γ) neutron capture cross-sections with liquid scintillator detectors

Cited by 25 publications

References 5 publications

TheZr92(n,γ) reaction and its implications for stellar nucleosynthesis

TheZr92(n,γ) reaction and its implications for stellar nucleosynthesis

Neutron capture cross section ofTh232measured at the n_TOF facility at CERN in the unresolved resonance region up to 1 MeV

Neutron-induced cross sections of short-lived nuclei via the surrogate reaction method

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