Atomic field Bremsstrahlung for electron energy 50 to 100 keV for Z from 6 to 92
The absolute doubly differential cross sections, differential in photon emission angle and energy, were measured for 50, 75, and 100 keV incident electrons, for target elements C, Al, Cu, Y, Ag, Te, Tb, Au, Bi, and U for photons radiated at 90/sup 0/. Comparisons are made with the numerical calculations of Tseng and Pratt. As the absolute cross section measurements had an uncertainty of 22%, due mainly to a 20% uncertainty in target thickness, the relative cross sections are measured to test the photon energy dependent shape of the bremsstrahlung spectrum with an accuracy of 3%. The comparison between theory and experiment was also made at a forward photon emission angle of 0/sup 0/ for 100 keV incident electrons for the target elements Cu, Y, Ag, Te, Tb, Au, and U by the measurement of absolute cross sections. It is concluded that Pratt's theory is generally adequate to explain the bremsstrahlung process in this range of electron energies and atomic numbers, even through a few discrepancies were also noted. An improved method of measuring the efficiency of the solid state detector was developed by using bremsstrahlung. This method gives the efficiency curve for the entire range of energy under study.
- Research Organization:
- Texas Christian Univ., Fort Worth (USA)
- OSTI ID:
- 6595107
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALUMINIUM
DIFFERENTIAL CROSS SECTIONS
ELECTRON COLLISIONS
PHOTON EMISSION
BISMUTH
CARBON
COPPER
GOLD
SILVER
TELLURIUM
TERBIUM
URANIUM
YTTRIUM
BREMSSTRAHLUNG
COMPARATIVE EVALUATIONS
EXPERIMENTAL DATA
KEV RANGE 10-100
THEORETICAL DATA
ACTINIDES
COLLISIONS
CROSS SECTIONS
DATA
ELECTROMAGNETIC RADIATION
ELEMENTS
EMISSION
ENERGY RANGE
INFORMATION
KEV RANGE
METALS
NONMETALS
NUMERICAL DATA
RADIATIONS
RARE EARTHS
SEMIMETALS
TRANSITION ELEMENTS
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena