Global ETD Search

41	A Search for Dark Matter with the ZEPLIN II Detector Gao, Jianting 14 January 2010 (has links) Galaxies and clusters of galaxies are believed to be dominated by non-luminous non-baryonic dark matter. A favored candidate is a new type of Weakly Interacting Massive Particle (WIMP) with a mass of order 100 GeV/c^2. The ZEPLIN II experiment is a WIMP search experiment that attempts to directly detect WIMP interactions using the two-phase xenon approach. The detector measures both scintillation and ionization generated by interactions in a 31 kg liquid xenon target. This approach provides a powerful discrimination between nuclear recoils, as expected from WIMPs, and background electron recoils. In this work, we develop a new X^2 approach to determine the three dimensional event positions in an attempt to improve the background rejection. The optical properties of the PTFE reflectors and the grids of the detector were determined using the Geant4 simulation, and event positions were obtained by finding the best match to the amount of light in each photomultiplier. This was found to greatly improve the position resolution. The approach was then applied to the WIMP search data. It was found that one of the dominating background sources was events from the gas above the anode grid and not from the PTFE walls caused by the small signals as previously thought. WIMP search results were then obtained from the first 31 days of stable ZEPLIN II data using two methods. Although the X^2 method greatly improved position resolution, the number of background events was not significantly altered and the new limit agreed well with the limit published by the collaboration. Dark Matter ZEPLIN WIMP Two-phase Xenon
42	The equation of state of frozen neon, argon, krypton, and xenon ... Kane, Conrad Gabriel. January 1939 (has links) Thesis (Ph. D.)--Catholic University of America, 1939. / Cover title. From Journal of chemical physics, v. 7, Aug. 1939.
43	An economic evaluation of the recovery of krypton and xenon from nuclear fuels reprocessing plants Boyum, Bruce Montgomery, 1947- January 1971 (has links) No description available. Reactor fuel reprocessing. Gases -- Liquefaction. Xenon. Krypton.
44	High spin states of some xenon and tellurium isotopes Ramsay, Eric Barnaby. January 1983 (has links) No description available. Xenon -- Isotopes. Tellurium -- Isotopes. Nuclear spin.
45	(p,xn) cross sections in 127I. Turcotte, Ronald E. January 1968 (has links) No description available. Iodine -- Isotopes -- Decay Xenon -- Isotopes -- Decay
46	Syntheses and characterization of fluorides and oxide fluorides of xenon(II), xenon(IV), xenon(VI), and iodine(VII) / Pointner, Bernard E. Schrobilgen, Gary Lee John. January 2005 (has links) Thesis (Ph.D.)--McMaster University, 2005. / Supervisor: G. J. Schrobilgen. Includes bibliographical references (leaves 305-318).
47	Syntheses and characterization of fluorides and oxide fluorides of xenon(II), xenon(IV), xenon(VI), and iodine(VII) / Pointner, Bernard E. Schrobilgen, Gary Lee John. January 2005 (has links) Thesis (Ph.D.)--McMaster University, 2005. / Supervisor: G. J. Schrobilgen. Includes bibliographical references (leaves 305-318).
48	Radioxenon generation using highly enriched uranium / Elliott, Anthony James. January 1900 (has links) Thesis (M.S.)--Oregon State University, 2009. / Printout. Includes bibliographical references (leaves 105-107). Also available on the World Wide Web.
49	The equation of state of frozen neon, argon, krypton, and xenon ... Kane, Conrad Gabriel. January 1939 (has links) Thesis (Ph. D.)--Catholic University of America, 1939. / Cover title. From Journal of chemical physics, v. 7, Aug. 1939.
50	Konventionelle Puls-NMR an 129Xe auf Einkristalloberflächen Gerhard, Peter B. January 2004 (has links) (PDF) Marburg, Univ., Diss., 2004. / Erscheinungsjahr an der Haupttitelstelle: 2003

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