Evaluation of Neutron Nuclear Data on Bromine and Krypton Isotopes for JENDL-4.0

Shibata, Kozo; Ichihara, Akira; Kunieda, Satoshi

doi:10.1080/18811248.2011.9711717

Cited by 10 publications

(4 citation statements)

References 29 publications

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“…This uncertainty estimate is based on the ENDF library uncertainties [31] in the corresponding energy range. It is also useful to calculate the MACS(kT ) using other neutron libraries [27,[41][42][43][44] with Eq. ( 12), see Tables 11 and 12.…”

Section: Extrapolation From 30 Kev To Kt = 8 23 and 90 Kevmentioning

confidence: 99%

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Stellar 30-keV neutron capture in 94,96Zr and the 90Zr(gamma,n)89Zr photonuclear reaction with a high-power liquid-lithium target

Tessler,

Paul,

Arenshtam

et al. 2015

Preprint

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A high-power Liquid-Lithium Target (LiLiT) was used for the first time for neutron production via the thick-target 7 Li(p, n) 7 Be reaction and quantitative determination of neutron capture cross sections. Bombarded with a 1-2 mA proton beam at 1.92 MeV from the Soreq Applied Research Accelerator Facility (SARAF), the setup yields a 30-keV quasi-Maxwellian neutron spectrum with an intensity of 3-5 ×10 10 n/s, more than one order of magnitude larger than present near-threshold 7 Li(p, n) neutron sources. The setup was used here to determine the 30-keV Maxwellian averaged cross section (MACS) of 94 Zr and 96 Zr as 28.0 ± 0.6 mb and 12.4 ± 0.5 mb respectively, based on activation measurements.The precision of the cross section determinations results both from the high neutron yield and from detailed simulations of the entire experimental setup. We plan to extend our experimental studies to low-abundance and radioactive targets.In addition, we show here that the setup yields intense high-energy (17.6 and 14.6 MeV) prompt capture γ rays from the 7 Li(p, γ) 8 Be reaction with yields of ∼ 3×10 8 γ/s/mA and ∼ 4×10 8 γ/s/mA, respectively, evidenced by the 90 Zr(γ, n) 89 Zr photonuclear reaction.

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Section: Extrapolation From 30 Kev To Kt = 8 23 and 90 Kevmentioning

confidence: 99%

“…MACS (30 keV) of the94,96 Zr(n, γ) reactions averaged over the three experiments and the extrapolated values at kT = 8, 23 and 90 keV, using different libraries[27,[41][42][43][44]. Gamma spectrum from 7 Li(p, γ)8 Be prompt capture…”

mentioning

confidence: 99%

Stellar 30-keV neutron capture in 94,96Zr and the 90Zr(gamma,n)89Zr photonuclear reaction with a high-power liquid-lithium target

Tessler,

Paul,

Arenshtam

et al. 2015

Preprint

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“…The details of some evaluations are given elsewhere. [80,81,82,83,84,85,86,87,88,89] The data on Zn were newly evaluated [80]. The RRPs of 64,66−68 Zn were mainly based on the data measured at ORNL.…”

Section: Jendl-40mentioning

confidence: 99%

JENDL: Nuclear databases for science and technology

Shibata

2013

Journal of Nuclear Science and Technology

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It is exactly 50 years since the Japanese Nuclear Data Committee was founded both in the Atomic Energy Society of Japan and in the former Japan Atomic Energy Research Institute. The committee promoted the development of Japan's own evaluated nuclear data libraries. As a result, we managed to produce a series of Japanese Evaluated Nuclear Data Libraries (JENDLs) to be used in various fields for science and technology. The libraries are categorized into general-purpose and special-purpose ones. The generalpurpose libraries have been updated periodically by considering the latest knowledge on experimental and theoretical nuclear physics that was available at the time of the updates. On the other hand, the specialpurpose libraries have been issued in order to meet the needs for particular application fields. This paper reviews the research and development for those libraries.

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“…In contrast, data below this energy are scarce. Figure 1 shows the experimental information available for the 169 Tm(n, 2n) 168 Tm cross section from threshold up to 12.5 MeV in comparison to the commonly used nuclear data evaluations JEFF-3.2, JENDL-4.0 [6], IRDF-2002 and ENDF/B-VII.1 [7]. Focusing on this energy range, which is important to probe down-scattered neutrons at NIF, and ignoring the very early (1960) data of Tewes et al, we note that in addition to the comprehensive data set of Frehaut et al [8] there exist only two data points from Bayhurst et al [9].…”

Section: Introductionmentioning

confidence: 99%

Measurements of the Tm169(n,2n)Tm168 cross section from threshold to 15

Soter¹,

Bhike²,

Finch³

et al. 2017

Phys. Rev. C

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Measurements of the 169 Tm(n, 2n) 168 Tm cross section have been performed via the activation technique at 13 energies between 8.5 and 15.0 MeV. The purpose of this comprehensive data set is to provide an alternative diagnostic tool for obtaining subtle information on the neutron energy distribution produced in inertial confinement deuterium-tritium fusion experiments at the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory. The 169 Tm(n, 2n) 168 Tm reaction not only provides the primary 14 MeV neutron fluence, but also the important down-scattered neutron fluence, the latter providing information on the density achieved in the deuterium-tritium plasma during a laser shot.

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Evaluation of Neutron Nuclear Data on Bromine and Krypton Isotopes for JENDL-4.0

Cited by 10 publications

References 29 publications

Stellar 30-keV neutron capture in 94,96Zr and the 90Zr(gamma,n)89Zr photonuclear reaction with a high-power liquid-lithium target

Stellar 30-keV neutron capture in 94,96Zr and the 90Zr(gamma,n)89Zr photonuclear reaction with a high-power liquid-lithium target

JENDL: Nuclear databases for science and technology

Measurements of the Tm169(n,2n)Tm168 cross section from threshold to 15

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