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Displaying 4026 - 4050 of 17264

NbN Film Development for PHEB Devices

September 1, 2002
Author(s)
Eyal Gerecht, V. A. Bhupathiraju, Erich N. Grossman, Jeffrey W. Nicholson, Fernando Rodriguez-Morales, Dazhen Gu, Sigfrid Yngvesson
… fabricating a thin NbN film at the National Institute of Standards and Technology in Boulder, CO. A two-fold approach … are deposited on MgO substrates which are heated to about 800 °C during deposition. A typical Tc is about 10 K and the …

Proceedings of the LADAR Calibration Facility Workshop, June 12-13, 2003

October 1, 2003
Author(s)
Geraldine S. Cheok
The use and scope of LADAR applications continues to expand as the technology matures, but standard protocols or procedures for calibrating and testing of LADARs have yet to be developed. While selections of LADAR instruments are generally based on the

DC Voltage Synthesis Using a Pulse-Quantized Josephson Voltage Source

May 1, 2000
Author(s)
Samuel Benz, Laurie Christian, Charles J. Burroughs, Clark A. Hamilton
We have synthesized and measured dc voltages using a bipolar pulse-quantized Josephson voltage waveform synthesizer. Bias current ranges were determined for 101 equally spaced dc voltage steps between -18.6 and +18.6 mV. The flatness of a step at -7.444 mV

Quantitative Analysis of Zirconium Alloys Using Borate Fusion and Wavelength Dispersive X-Ray Fluorescence Spectrometry

January 26, 2021
Author(s)
John R. Sieber, Anthony F. Marlow, Rick L. Paul, Charles A. Barber, Laura J. Wood, Lee L. Yu, Alaina Rieke, Amy Kutnerian, Jessica McCandless, Candace Wallace
… The National Institute of Standards and Technology (NIST) uses borate fusion, … (WDXRF) spectrometry and synthetic calibration standards for high performance, quantitative analyses of a … preserves measurement sensitivity. Synthetic calibration standards are made to closely match the fused samples, and …

Working equation for a Fabry-Perot cavity based optical pressure standard

May 1, 2024
Author(s)
Yuanchao Yang, Patrick Egan, Tom Rubin
… working equation for a FP cavity based optical pressure standard (OPS) is derived and presented which includes … Gouy phase, is negligible. To operate an OPS as a primary standard, two unknown parameters, i.e. mirror dispersion … equation for a Fabry-Perot cavity based optical pressure standard …

A Direct Comparison System for Power Calibration up to 67 GHz*

July 1, 2012
Author(s)
Thomas M. Wallis, Thomas P. Crowley, Denis X. LeGolvan, Ronald A. Ginley
… mm coaxial connectors adapted to 1.85 mm serve as transfer standards while between 50 GHz and 67 GHz, WR15 waveguide … power sensors adapted to 1.85 mm serve as transfer standards. The design and implementation of the system, a … power measurement, measurement standards, microwave sensors, metrology, effective …

Medical Applications of Nano-electrotechnologies: Challenges and Concerns for Technology Roadmaps, International Standards and Measurements

September 23, 2010
Author(s)
Herbert S. Bennett
… This paper presents reasons why standards are important for medical applications of … consensus-based international technology roadmapping and standards activities. It gives key results from a recent … the opportunities and challenges of international standards and associated measurements to advance medical …
Displaying 4026 - 4050 of 17264
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