Accession Number : AD0784402

Title :   Exploratory Tests of a Curved-Crystal X-Ray Spectrograph for Diagnostics of the Casino Spectrum.

Descriptive Note : Final rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Birks,L. S. ; Dozier,C. M. ; Sandelin,J. W. ; Johnson,E. T. ; Brown,D. B.

Report Date : JUL 1974

Pagination or Media Count : 13

Abstract : Exploratory tests were carried out with the curved-crystal spectrograph and tantalum foil targets using the 1 MeV electron Van de Graaff and the Gamble I facilities. Characteristic Ta K alpha lines were readily observable with 0.1 Coulomb irradiation on the electron Van de Graaff or with one shot on Gamble I. Good Ta bremsstrahlung spectra required longer exposures as would be expected; faster film intensifying screens would reduce exposure requirements by two to five times. Ancillary tests included a balanced-filter experiment to measure Ta characteristic radiation independently of the crystal spectrograph and the use of secondary fluorescers excited by primary x-rays from the Ta target. (Modified author abstract)

Descriptors :   *Bremsstrahlung, *Tantalum, *X ray spectra, Van de Graaff generators

Subject Categories : Crystallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE