Author: R. C. BollesPublisher:
ISBN:
Category : Fission products
Languages : en
Pages : 268
Book Description
Calculated Activities and Abundances of U235 Fission Products
Author: R. C. BollesPublisher:
ISBN:
Category : Fission products
Languages : en
Pages : 268
Book Description
Calculated Activities and Abundances of U235 Fission Products
Author: R.C. BollesUranium-235 Fission Product Activity and Energy as a Function of Decay Time for a Specific Irradiation Time and Thermal Flux
Author: C. B. MageePublisher:
ISBN:
Category : Fission products
Languages : en
Pages : 28
Book Description
Calculated Abundances and Activities of the Products of High Energy Neutron Fission of Uranium-238
Author: P. J. DolanPublisher:
ISBN:
Category :
Languages : en
Pages : 124
Book Description
Calculated abundances and activities of each fission product radionuclide as well as the activity of the total fission product mixture at various times after simultaneous high energy neutron fission of 10,000 atoms of Uranium-238 are presented in tabular form. The percentage contribution to the total activity of each fission product radionuclide and the disintegration rate of the total fission product mixture are presented graphically.
An Analysis of Calculated and Measured Fission Product Activities
Author: J. E. WatsonPublisher:
ISBN:
Category :
Languages : en
Pages : 53
Book Description
Calculations and measurements of delayed beta and gamma activities and spectra following nuclear fission are presented. There is good agreement between various calculations and measurements of gamma activity and spectra of U-235 fission products. There is a degree of agreement in calculated and measured beta activity. U-235 fission product beta and gamma activities are integrated over time to determine the total number of betas and the total gamma energy emitted per fission. Analysis of various information reveals that: (1) Gamma activity and spectra following fission of U-235 by thermal neutrons coincide with that of fission of U-235 by fission spectrum neutrons. (2) Gamma activities of U-235 fission products and Pu-239 fission products are identical within limits of experimental error. (3) Initial beta and gamma activities of U-238 fission products are approximately a factor of 2 higher than for U-235 fission products.
The Activity of the Fission Products of U235
Author: W. E. KnabePublisher:
ISBN:
Category : Fission products
Languages : en
Pages : 94
Book Description
Early Time Decay of Fission Product Mixtures
Author: J. L. MackinPublisher:
ISBN:
Category : Fission products
Languages : en
Pages : 32
Book Description
The Ratio of U238 Capture and U235 Fission Cross Sections in Fast Reactors
Author: William G. DaveyPublisher:
ISBN:
Category : Criticality (Nuclear engineering)
Languages : en
Pages : 38
Book Description
A new activation technique has been developed for the measurement of the ratio of the capture cross section of uranium-238 and the fission cross section of uranium-235 in zero-energy fast reactors. This work was initiated because of the long-standing discrepancy between calculated values in this ratio and radiochemically measured values. The new technique is a direct counting method which does not involve chemical separation in any way. Measurements have been made in four ZPR-3 fast reactor assemblies, two with hard spectra and two with soft spectra. In all four cases the measured ratio was slightly higher, on the average, than the calculated value. This is in strong contrast with the past radiochemical measurements in ZPR-3 assemblies, which gave vales 16% less than calculation.
The Activity of the Fission Products of U235
Author: W. E. KnabeEarly Time Decay of Fission Product Mixtures
Author: Peter O. StromPublisher:
ISBN:
Category : Ionization chambers
Languages : en
Pages : 26
Book Description