Download or read book Neutron Scattering Cross Sections for 232Th and 238U Inferred from Proton Scattering and Charge Exchange Measurements 7 MeV 26 and 27 MeV written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Differential cross sections for the (p, n) reactions to the isobaric analog states (IAS) of 232Th and 238U targets were measured at 26 and 27 MeV. The analysis of the data was done in conjunction with the proton elastic and inelastic (2, 4, 6+) differential cross sections measured at 26 MeV. Because collective effects are important in this mass region, deformed coupled-channels calculations were carried out for the simultaneous analysis of the proton and neutron outgoing channels. The sensitivity of the calculations was studied with respect to the optical model parameters used in the calculations, the shape of the nuclear charge distribution, the type of coupling scheme assumed among the levels, the magnitude of the deformation parameters, and the magnitude of the isovector potentials, V1 and W1. A Lane model-consistent analysis of the data was used to infer optical potential parameters for 6- to 7-MeV neutrons. The neutron elastic differential cross sections obtained from these calculations are compared with measurements available in the literature, and with results obtained using neutron parameters from global sets reported at these energies. 7 figures, 3 tables.
Download or read book Symposium on Neutron Cross sections from 10 to 50 MeV written by M. R. Bhat and published by . This book was released on 1980 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1984 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindex written by and published by . This book was released on 1988 with total page 1022 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics Briefs written by and published by . This book was released on 1981 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neutron Inelastic scattering Cross Sections of 232Th 233U 235U 238U 239Pu and 24 Pu LMFBR written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Differential-neutron-emission cross sections of 232Th, 233U, 235U, 238U, 239Pu and 24°Pu are measured between approx. = 1.0 and 3.5 MeV with the angle and magnitude detail needed to provide angle-integrated emission cross sections to approx.
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1980 with total page 896 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Fission Cross Sections of 23 Th 232Th 233U 234U 236U 238U 237Np 239Pu and 242Pu Relative 235U at 14 74 MeV Neutron Energy written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The measurement of the fission cross section ratios of nine isotopes relative to 235U at an average neutron energy of 14.74 MeV is described with particular attention to the determination of corrections and to sources of error. The results are compared to ENDF/B-V and to other measurements of the past decade. The ratio of the neutron induced fission cross section for these isotopes to the fission cross section for 235U are: 23°Th - 0.290 +- 1.9%; 232Th - 0.191 +- 1.9%; 233U - 1.132 +- 0.7%; 234U - 0.998 +- 1.0%; 236U - 0.791 +- 1.1%; 238U - 0.587 +- 1.1%; 237Np - 1.060 +- 1.4%; 239Pu - 1.152 +- 1.1%; 242Pu - 0.967 +- 1.0%. 40 refs., 11 tabs., 9 figs.
Download or read book Comparison of the p Xn Cross Sections from 238U 235U and 232Th Targets Irradiated with 200 MeV Protons written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We have measured absolute cross sections for (p, xn) reactions (x ranges from 0 to 8) from 238U, 235U, and 232Th targets irradiated with 200-MeV protons at the Brookhaven AGS Linac injector. Chemical yields were determined by using 239Np and 233Pa as tracers. Yield patterns obtained in this work can be compared to the experimental results and theoretical calculations from earlier work, and they are consistent within the framework of intranuclear cascade followed by neutron evaporation and fission competition.
Download or read book Tabulated Neutron Cross Sections 0 001 14 5 Mev 1H 22Ti written by R. J. Howerton and published by . This book was released on 1958 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Elastic and Inelastic Neutron Cross Sections written by Devereux L. Kavanagh and published by . This book was released on 1958 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1984-03 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Neutron Cross Sections written by Donald James Hughes and published by . This book was released on 1958 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tabulated Neutron Cross Sections 0 001 14 5 Mev written by R. J. Howerton and published by . This book was released on 1958 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Cross Sections for 270 Mev Neutrons written by James Dejuren and published by . This book was released on 1950 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Cross Sections for 95 Mev Neutrons written by James DeJuren and published by . This book was released on 1950 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The total cross sections of twelve different elements were measured using the neutron beam from the 184-in. cyclotron, operating with deuterons. Bismuth fission ionization chambers were employed as both monitor and detector in conventional 'good geometry' attenuation measurements in the neutron flux emerging from the 3-in. diameter collimating port in the 10-ft-thick concrete shielding. The mean energy of detection of the neutrons in this experiment is estimated to be 95 Mev. Measurements were also made with a monitor and detector placed inside the concrete shielding where an intense neutron flux over a large area could be obtained. Attenuators of four different elements were placed in front of the detector in a 'poor geometry' arrangement so that attenuation was due essentially to inelastic collisions which degrade the neutron energy below the fission threshold. A second detector was placed outside the concrete shielding In the collimated neutron beam in line with the neutron source, absorber, and first detector. Attenuation in it is caused by both inelastic and elastic scattering. By this arrangement the ratio of inelastic to total cross section can be determined directly in one experiment. The nuclear radii as calculated from the observed cross section, using the theory of the transparent nucleus, vary as 1.38 x 10(exp-13) A(exp(1/3)) cm. In this energy range the ratios of the inelastic to total cross sections are all less than one-half.
Download or read book On the Neutron proton Scattering Cross section written by D. Bohm and published by . This book was released on 1946 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
