Incoherent scattering of gamma rays by K-shell electrons. [Differential cross sections, 145 to 662 KeV] (open access)

Incoherent scattering of gamma rays by K-shell electrons. [Differential cross sections, 145 to 662 KeV]

Differential cross sections for incoherent scattering by K-shell electrons were measured, using coincidence techniques, for incident photons having energies of 662 keV, 320 keV, and 145 keV. The spectral distributions of the scattered photons emerging at scattering angles from 20/sup 0/ to about 140/sup 0/ are reported. Target materials were iron, tin, holmium, and gold at 320 keV; tin and gold at 662 keV; and iron and tin at 145 keV. A typical energy spectrum consists of a scattered peak that is much narrower than would be expected from the bound state electron motion. The peak also, typically, reaches a broad maximum width for scattering angles between 45/sup 0/ and 60/sup 0/. Rather than monotonically increasing with atomic number the peak width reaches a broad maximum, generally, between Z = 50 and Z = 67, and then decreases with increasing atomic number. No Compton defect appears in any of the peaks to within +- 20 keV. A discussion of the expected magnitude of the Compton defect is included. The peak is superimposed on a continuum that diverges at the low end of the scattered photon spectrum for the following cases: gold, holmium, and tin targets for 320-keV incident photons; gold …
Date: May 12, 1976
Creator: Spitale, G. C. & Bloom, S. D.
Object Type: Report
System: The UNT Digital Library
Texas Attorney General Opinion: H-821 (open access)

Texas Attorney General Opinion: H-821

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John L. Hill, regarding a legal question submitted for clarification: Location of offices of justices of the peace.
Date: May 12, 1976
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: H-822 (open access)

Texas Attorney General Opinion: H-822

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John L. Hill, regarding a legal question submitted for clarification: Effect of Governor's determination that Texas Youth Council appropriation contingency has been partially met or substantially met.
Date: May 12, 1976
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History