THE ENERGIES AND RELATIVE PAIR PRODUCTION CROSS SECTIONS FOR Zn65 AND Na22 GAMMA RAYS

1959 ◽  
Vol 37 (9) ◽  
pp. 1055-1058 ◽  
Author(s):  
P. P. Singh ◽  
H. W. Dosso ◽  
G. M. Griffiths
Keyword(s):  
Pair Production ◽  
Gamma Rays ◽  
Cross Sections ◽  
Production Cross ◽  
Relative Pair

MEASUREMENTS OF ABSOLUTE PAIR PRODUCTION CROSS SECTIONS AT LOW ENERGIES

1958 ◽  
Vol 36 (9) ◽  
pp. 1154-1160 ◽  
Author(s):  
S. Standil ◽  
V. Shkolnik
Keyword(s):  
Pair Production ◽  
Cross Section ◽  
Gamma Rays ◽  
Cross Sections ◽  
Production Cross ◽  
Relative Method ◽  
Low Energies

Using an improved analysis in conjunction with a relative method for the measurement of absolute pair production cross sections, the pair production cross sections per atom of lead have been measured for the gamma rays emitted by Co60 and Sb124. The Z-dependence of this cross section was measured for the Co60 radiation using targets of Al, Fe, Cu, Mo, Ag, Sn, and Pb. The results obtained are generally in agreement with other experimental determinations and are, along with those of other investigators, represented graphically.

Total Pair Production Cross Sections from 1.120 to 2.754 MeV

1972 ◽  
Vol 50 (22) ◽  
pp. 2756-2759 ◽  
Author(s):  
L. C. Henry ◽  
T. J. Kennett
Keyword(s):  
Pair Production ◽  
Cross Sections ◽  
Production Cross ◽  
Intensity Analysis ◽  
Relative Pair

Relative pair cross sections σp(EγZ) have been measured for energies 1.120, 1.172, 1.333, 1.560, 2.225, and 2.754 MeV and Z = 22, 29, 42, 48, 74, and 82. Results obtained through intensity analysis of annihilation spectra have been normalized to σ(2.754, 82) = 3.30 b/atom.

scholarly journals Partial and total thermal neutron capture cross sections for non-destructive assay and transmutation monitoring of 99Tc

2002 ◽  
Vol 90 (8) ◽  
Author(s):  
G. L. Molnár ◽  
T. Belgya ◽  
Zs. Révay ◽  
Syed M. Qaim
Keyword(s):  
Gamma Rays ◽  
Cross Sections ◽  
Neutron Capture ◽  
Gamma Ray ◽  
Cold Neutron ◽  
Production Cross ◽  
Radioactive Product ◽  
Non Destructive ◽  
Decay Gamma ◽  
Capture Cross Sections

SummaryAccurate partial gamma-ray production cross sections were determined for the prompt and radioactive product decay gamma rays following cold neutron capture in

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