Calorimetric Transmission Measurements through Thin Carbon Foils for Spectral Characterization of X-Ray Energies below 2 keV.
Rept. for Jan-Dec 72,
AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS
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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 microcalsq cm is detectable. A new computer code, called EXSPEC, has been used to unfold x-ray spectra from experimental transmitted fluence profiles. Author
- Physical Chemistry