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Displaying 426 - 450 of 1383

Time-Division SQUID Multiplexers for Transition-Edge Sensors

January 14, 2003
Author(s)
Kent D. Irwin, James A. Beall, Joern Beyer, Steven Deiker, W.Bertrand (Randy) Doriese, S. L. Ferreira, Gene C. Hilton, Sae Woo Nam, Carl D. Reintsema, Joel Ullom, Leila R. Vale
Microcalorimeters and bolometers based on superconducting transition-edge sensors (TES) are important tools for the detection of photons from millimeter waves through gamma rays, and for applications ranging from materials analysis to astronomy. There is a

A Well Dressed Microscope: Practical Experience with Microcalorimeter and Silicon Drift Detector Systems

December 31, 2002
Author(s)
John A. Small, Dale Newbury, John Henry J. Scott, L. King, Sae Woo Nam, Kent D. Irwin, Steven Deiker, Shaul Barkan, Jan Iwanczyk
NIST, Gaithersburg has recently installed a first generation silicon drift detector (SDD) from Photon Imaging and the NIST Boulder microcalorimeter energy dispersive x-ray spectrometer (υcal-EDS) on a JEOL 840 SEM, as shown in Fig. 1. [1,2] The instrument

The Development of Microcalorimeter EDS Arrays

November 1, 2002
Author(s)
Kent D. Irwin, James A. Beall, Steven Deiker, Gene C. Hilton, L. King, Sae Woo Nam, Dale Newbury, Carl D. Reintsema, John A. Small, Leila R. Vale
High-energy-resolution cryogenic microcalorimeters are a powerful new tool for x-ray microanalysis. With demonstrated energy resolution 20 times better than with conventional semiconductor EDS, microcalorimeters are useful in applications such as nanoscale

Advances in Weld Hydrogen Sensors

June 1, 2002
Author(s)
David Olson, B. Mishra, R D. Smith, S. Niyomsoan, P. Termsuksawad, Y D. Park, V I. Kaydanov, Z Gavra, Ronald B. Goldfarb
Through the application of modern physics concepts, advanced hydrogen sensors are being developed for rapid determination of weld hydrogen content and distribution. Electronic, optical, and magnetic property measurements have demonstrated the ability to

Present Results and Future Goals of the Cryogenic Dark Matter Search

January 1, 2002
Author(s)
T. A. Perera, D. Abrams, D. S. Akerib, D. B. Bauer, A. Bolozdynya, P. Brink, R. Bunker, B. Cabrera, D. O. Caldwell, J. P. Castle, Fengbo Hang, R. M. Clarke, M. B. Crisler, R. Dixon, D. Driscoll, S. Eichblatt, R. J. Gaitskell, S. R. Golwala, E. E. Haller, J. Hellmig, D. Holmgren, Martin Huber, S. Kamat, C. Maloney, V. Mandic, John M. Martinis, P. Meunier, Sae Woo Nam, Harold E. Nelson, M. Perillo-Issac, R. R. Ross, T. Saab, B. Sadoulet, J. Sander, R. W. Schnee, T. Shutt, Amy Smith, A. H. Sonnenschein, A. L. Spadafora, G. Wang
The Cryogenic Dark Matter Search (CDMS) uses Ge and Si detectors to search for Weakly Interacting Massive Particles (WIMPs) via their elastic-scattering interaction with atomic nuclei. The present results from CDMS give limits on the spin-independent WIMP

Microhotplate Platforms for Chemical Sensor Research

June 1, 2001
Author(s)
Stephen Semancik, Richard E. Cavicchi, M C. Wheeler, J E. Tiffany, G Poirier, R M. Walton, John S. Suehle, B. Panchapakesan, D. E. DeVoe
This paper describes the development and use of microdevices and microarrays in chemical sensor research. The surface-micromachined microhotplate structure common within the various platforms included here was originally designed for fabricating

Jim Zimmerman and the SQUID

March 1, 2001
Author(s)
Richard L. Kautz
The career of Jim Zimmerman, beginning with a solid foundation in electronics and cryogenics, reached a turning point in 1965 when he became coinventor of the rf SQUID (Superconducting Quantum Interference Device), while working at the Scientific
Displaying 426 - 450 of 1383