Polarization and Differential Cross Sections in the Small-Angle Scattering of Neutrons by Uranium

1966 ◽  
Vol 142 (3) ◽  
pp. 758-767 ◽  
Author(s):  
A. J. Elwyn ◽  
J. E. Monahan ◽  
R. O. Lane ◽  
A. Langsdorf ◽  
F. P. Mooring
Keyword(s):  
Cross Sections ◽  
Small Angle ◽  
Differential Cross ◽  
Small Angle Scattering ◽  
Differential Cross Sections ◽  
Angle Scattering

Elastic differential cross sections for small-angle scattering of 25-, 50-, and 100-keV protons by helium atoms

1982 ◽  
Vol 26 (5) ◽  
pp. 2476-2481 ◽  
Author(s):  
J. L. Peacher ◽  
T. J. Kvale ◽  
E. Redd ◽  
P. J. Martin ◽  
D. M. Blankenship ◽  
...  
Keyword(s):  
Cross Sections ◽  
Small Angle ◽  
Differential Cross ◽  
Small Angle Scattering ◽  
Differential Cross Sections ◽  
Helium Atoms ◽  
Angle Scattering

Elastic differential cross sections for small-angle scattering of 25-, 40-, and 60-keV protons by atomic hydrogen

1984 ◽  
Vol 29 (2) ◽  
pp. 521-524 ◽  
Author(s):  
E. Rille ◽  
J. L. Peacher ◽  
E. Redd ◽  
T. J. Kvale ◽  
D. G. Seely ◽  
...  
Keyword(s):  
Cross Sections ◽  
Small Angle ◽  
Differential Cross ◽  
Atomic Hydrogen ◽  
Small Angle Scattering ◽  
Differential Cross Sections ◽  
Angle Scattering

An experimental investigation of small angle photon elastic scattering

1979 ◽  
Vol 57 (3) ◽  
pp. 343-352 ◽  
Author(s):  
N. Ramanathan ◽  
T. J. Kennett ◽  
W. V. Prestwich
Keyword(s):  
Experimental Investigation ◽  
Elastic Scattering ◽  
Cross Sections ◽  
Small Angle ◽  
Differential Cross ◽  
Bound States ◽  
Scattering Amplitude ◽  
Form Factors ◽  
Differential Cross Sections

The differential cross sections for photon elastic scattering have been determined for targets of Cu, Cd, Ta, and Pb, at angles of 2.4, 3.5, 5.1., 6.0, 8.0, and 10.0° and incident energies of 244.7, 344.3, 443.9, 778.9, 964.0, 1085.8, 1112.0, 1274.2, and 1408.0 keV. The data indicate that presently calculated form factors may be too large, and suggest that intermediate bound states may influence the scattering amplitude.

The small-angle scattering of photons of about 100 MeV energy

1960 ◽  
Vol 254 (1277) ◽  
pp. 242-258 ◽  
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Differential Cross ◽  
Primary Source ◽  
Bremsstrahlung Spectrum ◽  
Differential Cross Sections ◽  
Approximate Theory ◽  
Cerenkov Counter ◽  
Scattering Cross ◽  
Angle Scattering

Differential cross-sections have been measured for the scattering of photons of mean energy 87 MeV by uranium at eight angles in the range from 1.18 to 4.48 mrad and by aluminium, silver, tungsten, lead and uranium at angles of 1.89 and 4.24 mrad, using a narrowly collimated bremsstrahlung beam from the Oxford 110 MeV synchrotron as the primary source of photons. A biased total-absorption Čerenkov counter was used to detect photons with energies near the peak energy of the bremsstrahlung spectrum, and absolute differential cross-sections were measured by comparing counting rates for photons in the primary and scattered beams. The experimental results, with the differential Compton scattering cross-sections of Klein and Nishina subtracted, were analyzed in terms of their variation with angle and atomic number, and can be described as consisting of a sharply peaked angular distribution with absolute cross-sections varying from element to element as Z 4 , together with a uniform distribution varying nearly as Z 2 ; these distributions were identified with Delbruck scattering and with bremsstrahlung from secondary electrons in the scattering target, respectively. The Delbruck scattering cross-section thus determined is slightly more sharply peaked than the cross-section predicted by an approximate theory of Bethe & Rohrlich.

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