The reactor neutron capture cross section of 46Sc and a determination of the beta branching ratio of 47Sc decay

1968 ◽  
Vol 19 (7) ◽  
pp. 593-596 ◽  
Author(s):  
Zong-Tschun Bak ◽  
P. Riehs
Keyword(s):  
Cross Section ◽  
Neutron Capture ◽  
Capture Cross Section ◽  
Branching Ratio ◽  
Reactor Neutron ◽  
Capture Cross ◽  
Neutron Capture Cross Section

THE "REACTOR" NEUTRON CAPTURE CROSS SECTION OF Y91

1960 ◽  
Vol 38 (12) ◽  
pp. 1690-1701
Author(s):  
Gwen M. Milton ◽  
W. E. Grummitt
Keyword(s):  
Cross Section ◽  
Neutron Capture ◽  
Capture Cross Section ◽  
Specific Activity ◽  
High Specific Activity ◽  
Natural Uranium ◽  
Reactor Neutron ◽  
Capture Cross ◽  
Neutron Capture Cross Section ◽  
Chemical Purification

A high specific activity source of Y91, freed from natural uranium and rare earths, was irradiated in a high flux position in the NRX reactor. After further chemical purification, 3.6-hour Y92 was identified in the sample by measurement of the 3.6-Mev β-particle associated with its decay, using a scintillation spectrometer. Two such measurements have established the reactor neutron capture cross section of Y91 to be 1.4 ± 0.3 barns.

Identification of Nuclear Levels of [sup 34]S for Determination of the Neutron Capture Cross Section

2009 ◽  
Author(s):  
Tadahiro Kin ◽  
Masumi Oshima ◽  
Kazuyoshi Furutaka ◽  
Mitsuo Koizumi ◽  
Yosuke Toh ◽  
...  
Keyword(s):  
Cross Section ◽  
Neutron Capture ◽  
Capture Cross Section ◽  
Capture Cross ◽  
Neutron Capture Cross Section ◽  
Nuclear Levels

THE PURIFICATION, DETERMINATION, AND NEUTRON CAPTURE CROSS SECTION OF ACTINIUM-227

1959 ◽  
Vol 37 (6) ◽  
pp. 1094-1103 ◽  
Author(s):  
M. J. Cabell
Keyword(s):  
Thermal Neutron ◽  
Cross Section ◽  
Neutron Capture ◽  
Capture Cross Section ◽  
Exchange Chromatography ◽  
Thermal Neutron Capture ◽  
Resonance Capture ◽  
Capture Cross ◽  
Neutron Capture Cross Section

Procedures are described for (a) the separation by ion exchange chromatography of submicrogram quantities of Ac227 from its daughters and (b) the absolute determination of Ac227 by measurement of the rate of growth of α-particle emission from an initially pure source. These procedures are utilized in the determination of the reactor and thermal neutron capture cross sections and the resonance capture integral of Ac227 by an activation method.Assuming 36.5 barns for the thermal neutron capture cross section of Co59, a value of σ2200 = 814 ± 13 barns has been obtained for Ac227. The resonance capture integral (from 0.5 ev to ∞) was found to be 1177 ± 19 barns relative to 48.6 barns for the resonance capture integral of Co59.

A CALORIMETRIC DETERMINATION OF THE HALF-LIFE OF THORIUM-230 AND A CONSEQUENT REVISION TO ITS NEUTRON CAPTURE CROSS SECTION

1962 ◽  
Vol 40 (2) ◽  
pp. 194-201 ◽  
Author(s):  
R. W. Attree ◽  
M. J. Cabell ◽  
R. L. Cushing ◽  
J. J. Pieroni
Keyword(s):  
Cross Section ◽  
Standard Error ◽  
Neutron Capture ◽  
Half Life ◽  
Capture Cross Section ◽  
Resonance Capture ◽  
Capture Cross ◽  
Neutron Capture Cross Section ◽  
Calorimetric Determination

The half-life of Th230 (ionium) has been measured by a calorimetric method and was found to be 75,200 years with a standard error of ± 1,600 years.In the light of this measurement, previously published values for the 2200 m/sec neutron capture cross section and the resonance capture integral (from 0.5 ev to ∞) of Th230 have been amended to 22.7 ± 0.6 barns and 996 ± 40 barns respectively.

THE REACTOR NEUTRON CAPTURE CROSS SECTION OF 124Sb

1966 ◽  
Vol 44 (11) ◽  
pp. 2956-2959 ◽  
Author(s):  
R. Courtemanche ◽  
T. A. Eastwood ◽  
R. D. Werner
Keyword(s):  
Cross Section ◽  
Neutron Capture ◽  
Capture Cross Section ◽  
Reactor Neutron ◽  
Capture Cross ◽  
Neutron Capture Cross Section
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