MeV total neutron cross sections

Schwartz, R. B.; Schrack, R.A.; Heaton, Henry

doi:10.6028/nbs.mono.138

Cited by 15 publications

(6 citation statements)

References 5 publications

(7 reference statements)

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“…In critiquing all the available experimental total cross section data, the high resolution cross section data of Ref. [73] was found to be inconsistent with the rest of the data set and was ignored in our analysis.…”

Section: B Summary Of the Experimental Databasesmentioning

confidence: 99%

Dispersive spherical optical model of neutron scattering from27Alup to 250 MeV

et al. 2002

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A spherical optical model potential ͑OMP͒ containing a dispersive term is used to fit the available experimental database of () and T for nϩ 27 Al covering the energy range 0.1-250 MeV using relativistic kinematics and a relativistic extension of the Schrödinger equation. A dispersive OMP with parameters that show a smooth energy dependence and an energy-independent geometry are determined from fits to the entire data set. A very good overall agreement between experimental data and predictions is achieved up to 150 MeV. Inclusion of nonlocality effects in the absorptive volume potential allows one to achieve an excellent agreement up to 250 MeV.

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Section: B Summary Of the Experimental Databasesmentioning

confidence: 99%

Dispersive spherical optical model of neutron scattering from27Alup to 250 MeV

et al. 2002

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“…Thus it was concluded that the energy resolutions were far short of those ~ecessary for determining the 58 Ni neutron total cross sections free of self-shielding perturbations. It is noted that the above resolutions are comparable to those employed in a number of white-source measurements of the nickel total cross sections [8,9]. •Thus some of the previously reported neutron total cross sections may suffer from self-shielding perturbations, particularly as relatively thick samples were frequently employed.…”

Section: A Measurement Samplementioning

confidence: 69%

Fast-neutron total and scattering cross sections of /sup 58/Ni

Jorgensen¹,

Guenther²,

Smith³

et al. 1981

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Fast Neutron Capture and Activation Cross Sections of Niobium Isotopes by w. P. Poenitz, May 1974. Method of Neutron Activation Cross Section Measurement for En ~ 5.5-10 MeV Using the D(d,n)He-3 Reaction as a Neutron Source by D. L. Swllh and J. W. M~i1rlnws, Aueu.st 1974. ANL/NDM-10 Cross Sections for (n,p) KeacLluu:; C.i'l '27Ax., '16 •. 47,!t8T;, 54,!;)6F,., 58lifl, 59Co and 64zn frnm Near Threshold to 10 MeV by Donald L.

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“…In the range 0.050-5.4 MeV, we have relied largely on measurements by Poenitz et al [7]. There are small disagreements with other measurements in this range [6,8], and we assess the accuracy in this region at 2%.…”

Section: A1 Total Cross Sectionsmentioning

confidence: 96%

“…A comparison between experimental data [3][4][5][6][7][8][9] with the ENDL99 and ENDL2009 libraries and the Sukhovitskii and FLAP-A2.99d potentials is shown in Figure 3 ENDL2009 (dot-dash), the Soukhovitskii [13] (dashed) and FLAP-A2.99d Solid) potentials, and high-quality experimental data (circles with error bars) [6][7][8][9] and other lower-quality experimental data [3][4][5] (blue circles with error bar). For all but ENDL2009, the total cross section is in black, while the elastic is in red.…”

Section: Total Cross Sectionmentioning

confidence: 99%

Analysis of differences in the ENDL99 and ENDL2009 nuclear data libraries pertaining to 238U

Ormand¹,

Beck²,

Thompson³

et al. 2012

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A careful analysis is performed on the differences exhibited in the evaluated elastic and inelastic channels between the ENDL99 and ENDL2009 libraries for neutrons incident on 238 U. The two libraries are compared with experimental data as well as results obtained from calculations utilizing a new Hauser-Feshbach reaction code and two modern, high-quality optical potentials. Overall, the ENDL2009 evaluation is found to be more physical, and a better representation of experimental data. The only exception is that the angular distributions for the elastic channel in the ENDL99 library are in better agreement at backward angles for incident neutron energies in the range 0.7-1.3 MeV. Other issues with the inelastic scattering data in ENDL2009 are pointed out.

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MeV total neutron cross sections

Cited by 15 publications

References 5 publications

Dispersive spherical optical model of neutron scattering from27Alup to 250 MeV

Dispersive spherical optical model of neutron scattering from27Alup to 250 MeV

Fast-neutron total and scattering cross sections of /sup 58/Ni

Analysis of differences in the ENDL99 and ENDL2009 nuclear data libraries pertaining to 238U

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