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Electronics

Sensors

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Displaying 551 - 575 of 1388

Microcalorimeter EDS Measurements of Chemical Shifts in Fe Compounds

July 1, 1998
Author(s)
David A. Wollman, Dale E. Newbury, Gene C. Hilton, Kent D. Irwin, L L. Dulcie, Norman F. Bergren, John M. Martinis
Chemical shifts result from changes in electron binding energies with the chemical environment of atoms. In x-ray spectra, chemical shifts lead to changes in x-ray peak positions, relative peak intensities, and peak shapes. These chemical bonding effects

Pulse-Driven Josephson Digital/Analog Converter

June 1, 1998
Author(s)
Samuel Benz, Clark A. Hamilton, Charles J. Burroughs, Todd E. Harvey, Laurie Christian, J. X. Przybysz
We have designed and demonstrated a pulse-driven Josephson digital/analog converter. When used as a programmable voltage standard, this device can synthesize metrologically accurate ac waveforms as well as stable dc voltages. We show through simulations

Comparison of heteroepitaxial YBa 2 Cu 3 O 7-d and TiO 2 thin film growth

December 31, 1997
Author(s)
Alexana Roshko, F. J. Stork, David A. Rudman, D. J. Aldrich, P. A. Hotsenpiller
The growth of heteroepitaxial YBa 2Cu 3O 7-δ and TiO 2 thin films has been investigated as a function of deposition rate. film thickness, and deposition temperature. In spite of the fact that the two materials are grown at very different rates and
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