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Displaying 1951 - 1975 of 4635

Efficiency of quasiparticle evacuation in superconducting devices

January 23, 2012
Author(s)
Sukumar Rajauria, L. Pascal, P. Gandit, F. Hekking, B. Pannetier, H. Courtois
… superconductor strip in proximity to a metallic trap junction. In particular, we have measured accurately the … in the superconductor. We show that a metallic trap junction contributes signi¯cantly to the evacuation of …

Spatial Uniformity and Resolution in Inkjet-Printed 241Am Phantoms Imaged by Digital Autoradiography

August 15, 2025
Author(s)
Sean Jollota, Denis Bergeron, Andrew Nupp, R Verkouteren, Svetlana Nour, Ryan Fitzgerald, Ohyun Kown, Jeffrey Radtke, Bryan Bednarz, Brian Miller, Larry DeWerd
… patterns were printed onto stainless steel, nickel, and gold-coated nickel substrates. Imaging was performed at … successfully resolved printed features at 10 μm², and gold-coated nickel consistently exhibited the most confined …

Relevance assessment: are judges exchangeable and does it matter?

July 21, 2008
Author(s)
Ian M. Soboroff, Peter Bailey, Nick Craswell, Alan Smeaton, Emine Yilmaz, Paul Thomas
… are exchangeable. We consider three classes of judge: gold standard judges, who are topic origi- nators and are … some caution regarding relative system performance, but gold standard judges are preferred. …

A 3D-printed alkali metal dispenser

May 1, 2018
Author(s)
Eric B. Norrgard, Daniel S. Barker, James A. Fedchak, Nikolai N. Klimov, Julia K. Scherschligt, Stephen P. Eckel
… the number of atoms loaded into a magneto-optical trap. The source loads $\approx 10^7$ $^7$Li atoms in the trap in $\approx 1$\,s. The loaded source weighs 700\,mg and …

Solid-Phase Microextraction Sorbents

June 22, 2012
Author(s)
Thomas J. Bruno, Paris D. Svoronos
While trapping sorbents have been used for many years in headspace analysis (most commonly with gas chromatography), the modern techniques of solid phase microanalysis (SPME) are particularly applicable to survey analyses [1]. In the following tables, we

A Well Collimated Quasi-Continuous Atom Laser

March 1, 1999
Author(s)
Edward W. Hagley, Lu Deng, M M. Kozuma, J Wen, Kristian Helmerson, S L. Rolston, William D. Phillips
We demonstrate extraction of sodium atoms from a trapped Bose-Einstein condensate (BEC) using a coherent stimulated Raman process. Optical Raman pulses drive transitions between trapped and untrapped magnetic sublevels so as to give the output coupled BEC

Ultra-Cold Collisions of Atoms and Molecules

February 19, 2017
Author(s)
Paul S. Julienne
The study of collisions of neutral atoms and molecules at ultralow collision energies is made possible by advances in techniques for cooling and trapping such species. Excellent reviews of laser cooling of atoms are given in the Nobel Lectures of Chu 2
Displaying 1951 - 1975 of 4635
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