A program to obtain reliable photoabsorption cross sections

Conference · Fri Jan 01 00:00:00 EST 1988

OSTI ID:5051854

Del Grande, N K; Tirsell, K G

A program to obtain reliable photoabsorption cross sections for a broad range of elements has been initiated at Lawrence Livermore National Laboratory. Using well-characterized samples, absolute measurements have been made with overall uncertainties of /+-/10% or less over energy ranges from about 50 eV to several keV, at several synchrotron radiation facilities. More than a dozen elements have been investigated and other measurements are being planned for elements beryllium (Z-4) through uranium (Z-92). Among the interesting phenomena observed are the resonances/enhancements which seem to accompany virtually every inner shell threshold. Specific examples discussed in this paper include carbon, nickel and uranium. Comparison with theory and existing data compilations/data bases indicate the need for substantial theoretical and compilation improvements. 24 refs., 6 figs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5051854
• Report Number(s): UCRL-96792; CONF-880110-30; ON: DE88008904
• Resource Relation: Conference: SPIE O-E Lase '88: optoelectronics and laser applications in science and engineering, Los Angeles, CA, USA, 10 Jan 1988
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CARBON
PHOTONUCLEAR REACTIONS
NICKEL
RESONANCE ABSORPTION
URANIUM
CROSS SECTIONS
EXPERIMENTAL DATA
ABSORPTION
ACTINIDES
DATA
ELEMENTS
INFORMATION
METALS
NONMETALS
NUCLEAR REACTIONS
NUMERICAL DATA
TRANSITION ELEMENTS
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