Elastic scattering of /sup 152/Eu and /sup 154/Eu. gamma. rays by atoms

Journal Article · Sun May 01 04:00:00 EDT 1988 · Phys. Rev. A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.37.3218· OSTI ID:5126239

Lestone, J P; Taylor, R B; Teansomprasong, P; Whittingham, I B

Differential cross sections are reported for the elastic scattering of 344-, 411-, 444-, 723-, 779-, 868-, 964-, 1005-, 1086-, 1112-, 1275-, and 1408-keV ..gamma.. rays through scattering angles from 2/sup 0/ to 45/sup 0/ by targets of Cu, Mo, Sn, Ta, Pb, and U. The results have been compared with two sets of theoretical cross sections for Rayleigh plus nuclear-Thomson plus Delbruck scattering. The first set was interpolated from the tables of P. P. Kane et al. (Phys. Rep. 140, 75 (1986)), which are based upon exact S-matrix amplitudes for inner-shell Rayleigh scattering and use of modified form factors and photoelectric cross sections for outer-shell Rayleigh scattering; the second set was based upon modified-form-factor Rayleigh amplitudes for all electron shells. The measured cross sections agree to closer than 10% with the Kane et al. calculations and indicate that for larger scattering angles, higher photon energies, and heavier target elements the modified form factor overestimates Rayleigh scattering. At small scattering angles there is no evidence for any systematic discrepancy between experiment and the cross sections of Kane et al.

• Research Organization: Physics Department, James Cook University, Townsville, Australia 4811
• OSTI ID: 5126239
• Journal Information: Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 37:9; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ACTINIDES
ANGULAR DISTRIBUTION
ATOM COLLISIONS
COHERENT SCATTERING
COLLISIONS
COMPARATIVE EVALUATIONS
COPPER
CROSS SECTIONS
DELBRUECK SCATTERING
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELASTIC SCATTERING
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY RANGE
FORM FACTORS
GAMMA RADIATION
INELASTIC SCATTERING
IONIZING RADIATIONS
KEV RANGE
KEV RANGE 100-1000
LEAD
METALS
MEV RANGE
MEV RANGE 01-10
MOLYBDENUM
PARTICLE PROPERTIES
PHOTON COLLISIONS
PHOTON-ATOM COLLISIONS
RADIATIONS
RAYLEIGH SCATTERING
SCATTERING
TANTALUM
THOMSON SCATTERING
TIN
TRANSITION ELEMENTS
URANIUM