Accession Number : AD0761826

Title :   Calorimetric Transmission Measurements through Thin Carbon Foils for Spectral Characterization of X-Ray Energies below 2 keV.

Descriptive Note : Rept. for Jan-Dec 72,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s) : Craven,W. M. ; Burns,W. C.

Report Date : 25 MAY 1973

Pagination or Media Count : 26

Abstract : The feasibility of spectral characterization of a pulsed source of x rays with energies below 2 keV has been demonstrated. The method is based on calorimetric measurement of x-ray transmission through carbon foils of 1-micrometer thickness. With the use of a 12-element array of calorimeters, the complete transmitted fluence profile is obtained from a single x-ray pulse. The calorimeter elements have been designed for high sensitivity, and results show that a fluence as low as 10 microcal/sq cm is detectable. A new computer code, called EXSPEC, has been used to unfold x-ray spectra from experimental transmitted fluence profiles. (Author)

Descriptors :   (*X RAYS, MEASUREMENT), EXPERIMENTAL DESIGN, FOILS(MATERIALS), CARBON, CALORIMETRY

Subject Categories : Physical Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE