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Fluorescence measurements of the M-band photon emission from a laser-irradiated gold disk

Journal Article · · Rev. Sci. Instrum.; (United States)
DOI:https://doi.org/10.1063/1.1139692· OSTI ID:6838242
Gold M-band x rays with energies above the sulfur K edge of 2.472 keV create sulfur K/sub ..cap alpha../ fluorescence with a quantum efficiency of 8.1%. The sulfur fluorescer was a 600 x 1500-..mu..m rectangle about 1100 ..mu..m from the gold plate. It was 25 ..mu..m of C/sub 6/H/sub 4/S plastic shielded by 50 ..mu..m of beryllium. The absolute brightnesses of both the M-band spectrum and of the fluorescence line were measured by separate spectrographs. The spectrograph measuring the fluorescence did not have a direct line of sight to the hot gold. These measurements were made with 3512-A laser light irradiating the gold plate for 1 ns over a number of intensities between 2 x 10/sup 14/ and 10/sup 15/ W/cm/sup 2/.
Research Organization:
Lawrence Livermore National Laboratory, Livermore, California 94550
OSTI ID:
6838242
Journal Information:
Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 59:8; ISSN RSINA
Country of Publication:
United States
Language:
English