Measurement of Neutron Capture Cross Section of 237Np from 0.02 to 100 eV

Shcherbakov, O. A.; Furutaka, Kazuyoshi; Nakamura, Shôji; Sakane, Hitoshi; Kobayashi, Katsuhei; Yamamoto, Shuji; Hori, Jun‐ichi; Harada, Hideo

doi:10.3327/jnst.42.135

Cited by 13 publications

(11 citation statements)

References 15 publications

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“…The experimental values in Table V correspond to the measurements of Hoffman et al [6], Weston and Todd [8], Kobayashi et al [9], and Scherbakov et al [10]. For the sake of clarity, the ratios reported in the table are illustrated in Fig.…”

Section: A Average Capture Cross Sectionmentioning

confidence: 86%

“…Other authors have compared their results in selected energy intervals below 100 eV [8,10] and thus the same intervals have been chosen in this work. However, the good energy resolution of the n_TOF data allow investigating the average cross sections calculated from resonance parameters up to higher neutron energies and therefore two additional energy intervals have been included: 100-280 eV and 280-500 eV.…”

Section: A Average Capture Cross Sectionmentioning

confidence: 99%

“…A detailed investigation of the results from previous capture [5][6][7][8][9][10][11], fission [6,12,13], and total [6,7,[12][13][14] cross section measurements reveals significant discrepancies between experiments. Indeed, the recommended 237 Np evaluations do not result from the combination of several data sets as it is always desirable; instead, individual data sets are selected for each reaction channel and each neutron energy range.…”

Section: Introductionmentioning

confidence: 99%

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Measurement and resonance analysis of the237Np neutron capture cross section

Guerrero¹,

Cano‐Ott²,

Mendoza³

et al. 2012

Phys. Rev. C

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The neutron capture cross section of 237 Np was measured between 0.7 and 500 eV at the CERN n_TOF facility using the 4π BaF 2 Total Absorption Calorimeter. The experimental capture yield was extracted minimizing all the systematic uncertainties and was analyzed together with the most reliable transmission data available using the SAMMY code. The result is a complete set of individual as well as average resonance parameters [D 0 = 0.56(2) eV, γ = 40.9(18) meV, 10 4 S 0 = 0.98(6), R = 9.8 (6) (2002)]. The results indicate that a new evaluation combining the present capture data with reliable transmission data would allow reaching an accuracy better than 4%, in line with the uncertainty requirements of the nuclear data community for the design and operation of current and future nuclear devices.

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Section: A Average Capture Cross Sectionmentioning

confidence: 86%

Section: A Average Capture Cross Sectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Measurement and resonance analysis of the237Np neutron capture cross section

Guerrero¹,

Cano‐Ott²,

Mendoza³

et al. 2012

Phys. Rev. C

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“…The previous measurements were performed by the neutron time-of-flight (TOF) method using an electron Linac in the resonance region [1][2][3][4] as a pulsed neutron source and used C 6 F 6 , C 6 D 6 or BGO detectors. To reduce the high background caused by γ-rays of the radioactive sample, the pulse-height bias corresponding to 0.5 ∼ 1.0 MeV was used and it was necessary to insert rather thick lead shieldsbetween the sample and detectors or to arrange coincidences between the detectors in order to obtain a good signal-to-noise ratio.…”

Section: Introductionmentioning

confidence: 99%

“…237 Np is one of the most important nuclei in the minor actinides. In the past, several groups have measured the neutron capture cross section of 237 Np in the thermal neutron and resonance energy range [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Neutron capture cross section measurements on ²³⁷Np with a 4π Ge spectrometer

Mizumoto

Igashira

Ohsaki

et al. 2007

Nd2007

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Abstract. Neutron capture cross sections on minor actinides are important in the design work for innovative nuclear reactor systems. In order to improve data accuracy, a 4π Ge spectrometer system surrounded with large BGO detectors for Compton suppression has been developed. Capture cross sections of 237 Np were obtained and resonance analyses using the code SAMMY were performed for several low energy resonances. Measurements were carried out at the electron Linac of KURRI (Kyoto University Research Reactor Institute) with an electron energy of 30 MeV.

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