The value of η for 238U with neutrons of energy between 12 MeV and 19 MeV

White, P.H.

doi:10.1016/0368-3230(62)90132-5

Cited by 3 publications

(2 citation statements)

References 27 publications

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“…Allen reported a cross section of (950 ± 150) mb for 14.0-MeV neutrons, and the neutron energy dispersion was not reported. White et al reported a value of (890 ± 200) mb for 14.2-MeV neutrons in 1962 [7], also using the spherical shell technique with long counters. In 1969, Mather and Pain [8] gave a cross-section value of (494 ± 21) mb for 14.06-MeV neutrons, but the counting statistic uncertainty was not included.…”

Section: Introductionmentioning

confidence: 96%

Determination of cross sections for the238U(n,3n)<

Wang

Jiang

et al. 2013

Phys. Rev. C

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The cross sections of the 238 U(n,3n) 236 U reaction induced by neutrons with energies around 14 MeV were determined using a combination of the activation technique and accelerator mass spectrometry (AMS) at the China Institute of Atomic Energy (CIAE). U 3 O 8 samples were irradiated for 198 h by neutrons produced by the 3 H(d,n) 4 He reaction on a 600-kV neutron generator at CIAE. Neutron flux was continuously determined by the activation of flux monitors, Co foils, closely attached to the sample. To accurately determine the long half-life product 236 U, an AMS procedure was established with a sensitivity of about 10 −11 for 236 U/ 238 U. As a result, the cross sections of 238 U(n,3n) 236 U for the incident neutron energies of (14.18 ± 0.30) and (14.65 ± 0.40) MeV were obtained to be (489.3 ± 48.0) and (556.7 ± 27.8) mb, respectively.

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Section: Introductionmentioning

confidence: 96%

Determination of cross sections for the238U(n,3n)<

Wang

Jiang

et al. 2013

Phys. Rev. C

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“…Experimental measurements of elastic scattering angular distributions have been made from 0.075 MeV to 4 MeV and at 7 and 14.1 MeV. 14 ' 18 ' 34 - 89 These were combined with optical model cal culations to cover the range of energies needed for the evaluation. The total elastic cross section has an accuracy of about 15%, and the individual differential cross section data points have relative uncertainties of about 15%.…”

Section: A Elastic Scattering Angular Distributionsmentioning

confidence: 99%