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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
191

Cluster counting studies in a SuperB drift chamber prototype

Dejong, Samuel Rudy 05 September 2012 (has links)
SuperB is a high luminosity e+e- collider experiment that is currently being designed to explore the flavour sector of particle physics. The detector at SuperB will contain a drift chamber, a gas filled device used to measure the momentum and identity of particles produced in the collisions. Particle identification in a drift chamber uses the measured amount of ionization deposited by the particle in the cells of the chamber, which provides a measurement of the particle speed. The ionization loss is traditionally measured by integrating the total charge released by the ionization after a gas amplification avalanche process. Since such a measurement has potentially large uncertainties associated with fluctuations in the gas amplification and other processes, it is possible that measuring the number of primary clusters of ionization caused by the particle could provide an improvement in the measurement of the ionization loss. The results of experiments performed at the University of Victoria and the TRIUMF laboratory M11 test beam using a SuperB drift chamber prototype to test the feasibility of counting clusters are presented here. The ability to separate muons and pions at the momenta explored in the TRIUMF testbeam was similar to the ability to separate pions and kaons at the higher momenta of SuperB. It was found that counting the clusters provides a significant improvement to particle identification when combined with the traditional measurement of the integrated charge. / Graduate
192

Untersuchungen zur NOx-Einspeicherung an Ceroxid mittels IR-Spektroskopie in diffuser Reflexion

Philipp, Susanne. Unknown Date (has links)
Darmstadt, Techn. Universiẗat, Diss., 2007. / Dateien im PDF-Format.
193

The late Quaternary environmental history of the Lake Heron Basin, Mid Canterbury, New Zealand : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Science in Geology in the University of Canterbury /

Pugh, J. M. January 2008 (has links)
Thesis (M. Sc.)--University of Canterbury, 2008. / Typescript (photocopy). One map in pocket. Includes bibliographical references (leaves 131-145). Also available via the World Wide Web.
194

The sedimentology, morphology and evolution of Two Gravel Barachois, Placentia Bay, Newfoundland /

Boger, Rebecca A., January 1997 (has links)
Thesis (M. Sc.)--Memorial University of Newfoundland, 1997. / Blbliography: leaves 278-293.
195

Beiträge zur Sensorik redox-aktiver Gase

Kamp, Bernhard. January 2002 (has links)
Stuttgart, Univ., Diss., 2002.
196

Understanding long-term beach width change in the Oceanside littoral cell, California

Chenault, Carla D. January 2007 (has links)
Thesis (Ph. D.)--University of California, Santa Cruz, 2007. / Includes bibliographical references.
197

Dynamics of the coupled ice-ocean system in the marginal ice zone study of the mesoscale processes and of constitutive equations for sea ice /

Häkkinen, Sirpa. January 1984 (has links)
Thesis (Ph. D.)--Florida State University, 1984. / Typescript. Includes bibliographical references (leaves 91-95).
198

Moving hotspots evidence from paleomagnetism and modelling /

Antretter, Maria. Unknown Date (has links)
University, Diss., 2001--München.
199

Sediment storage and delivery on Holocene glacial timescales, Granite Creek, southern Alaska /

Blair, Mehgan O'Hearn. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2005. / Printout. Includes bibliographical references (leaves 48-52). Also available via the World Wide Web.
200

Kinetische und mechanistische Untersuchung der heterogenen Reaktionen von Stickoxiden an Mineralstaub-Oberflächen

Börensen, Christoph. Unknown Date (has links) (PDF)
Universiẗat, Diss., 2001--Essen.

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