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Displaying 601 - 615 of 615

Microcalorimeter EDS: Benefits and Drawbacks

August 1, 2000
Author(s)
David A. Wollman, Dale Newbury, Sae Woo Nam, Gene C. Hilton, Kent D. Irwin, David A. Rudman, Steven Deiker, Norman F. Bergren, John M. Martinis
The commercial introduction of high-count-rate, near-room-temperature silicon drift detectors (presently available) and high-energy-resolution cryogenic microcalorimeters (forthcoming) is an exciting development in x-ray microanalysis, in which detector

Microcalorimeter Energy-Dispersive Spectrometry Using a Low Voltage Scanning Electron Microscope

July 1, 2000
Author(s)
David A. Wollman, Sae Woo Nam, Gene C. Hilton, Kent D. Irwin, Norman F. Bergren, David A. Rudman, John M. Martinis, Dale Newbury
We describe the current performance of the prototype microcalorimeter energy-dispersive spectrometer (5cal EDS) developed at NIST for X-ray microanalysis. We show that the low-energy 5cal EDS, designed for operation in the energy range 0.2-2 keV, offers

Exclusion Limits on the WIMP-Nucleon Cross Section from the Cryogenic Dark Matter Search

June 19, 2000
Author(s)
R. Abusaidi, D. S. Akerib, P. D. Barnes, D. B. Bauer, A. Bolozdynya, P. Brink, R. Bunker, B. Cabrera, D. O. Caldwell, J. P. Castle, R. M. Clarke, P. Colling, M. B. Crisler, A Cummings, A. Da Silva, A. K. Davies, R. Dixon, B. L. Dougherty, D. Driscoll, S. Eichblatt, J. Emes, R. J. Gaitskell, S. R. Golwala, D. Hale, E. E. Haller, J. Hellmig, Martin Huber, Kent D. Irwin, J. Jochum, F. P. Lipschultz, A. Lu, V. Mandic, John M. Martinis, Sae Woo Nam, Harold E. Nelson, B. Neuhauser, M. J. Penn, T. A. Perera, M. Perillo-Issac, B Pritychenko, R. R. Ross, T. Saab, B. Sadoulet, R. W. Schnee, D. N. Seitz, P. Shestople, T. Shutt, Amy Smith, G. W. Smith, A. H. Sonnenschein, A. L. Spadafora, W. Stockwell, J. D. Taylor, Stephen White, S. Yellin, B. A. Young
The cryogenic Dark Matter Search (CDMS) employs Ge and Si detectors to search for weakly interacting massive particles (WIMPs) via their elastic-scattering interactions with nuclei while discriminating against interactions of background particles. CDMS

Exclusion Limits on the WIMP-Nucleon Scattering Cross-Section from the Cryogenic Dark Matter Search

January 1, 2000
Author(s)
S. R. Golwala, R. Abusaidi, D. S. Akerib, P. D. Barnes, D. B. Bauer, A. Bolozdynya, P. Brink, B. Cabrera, D. O. Caldwell, J. P. Castle, R. M. Clarke, P. Colling, M. B. Crisler, A. Da Silva, A. K. Davies, R. Dixon, S. Eichblatt, Kent D. Irwin, R. J. Gaitskell, E. E. Haller, J. Hellmig, Martin Huber, J. Jochum, F. P. Lipschultz, John M. Martinis, Sae Woo Nam, J. Nelson, B. Neuhauser, T. A. Perera, M. Perillo-Issac, R. R. Ross, T. Saab, B. Sadoulet, R. W. Schnee, P. Shestople, T. Shutt, Amy Smith, A. H. Sonnenschein, A. L. Spadafora, S. Yellin, B. A. Young
The Cryogenic Dark Matter Search (CDMS) employs massive ionization- and phonon-mediated detectors to search for WIMPs via their elastic scattering interactions with nuclei while discriminating against interactions by other background particles. Limits on

First Astronomical Application of a Cryogenic Transition Edge Sensor Spectrophotometer

December 31, 1999
Author(s)
R. W. Romani, Aaron J. Miller, B. Cabrera, Enectali Figueroa-Feliciano, Sae Woo Nam
We report on the first astronomical observations with a photon-counting pixel detector that provides arrival time ((delta)R, less then or equal to} 0.15 eV) resolved measurements from the near-IR through the near UV. Our test Observations were performed by

Toward a 2-eV Microcalorimeter X-ray Spectrometer for Constellation-X

October 1, 1999
Author(s)
C. K. Stahle, Simon R. Bandler, T W. Barbee, J. Beeman, R.P. Brekosky, B. Cabrera, M. Cunningham, Steven Deiker, Enectali Figueroa-Feliciano, F. M. Finkbeiner, G R. Frank, K. C. Gendreau, E. E. Haller, Gene C. Hilton, Kent D. Irwin, R. L. Kelley, S. E. Labov, M. J. Li, N. Madden, John M. Martinis, D. McCammon, Sae Woo Nam, F. S. Porter, H. Schnopper, E. H. Silver, A. E. Szymkowiak, G. S. Tucker, A. Walker, David A. Wollman
Constellation-X is a cluster of identical observatories that together constitute a promising concept for a next-generation, high-throughput, high-resolution, astrophysical x-ray spectroscopy mission. The heart of the Constellation-X mission concept is a