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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.
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Showing 81 to 90 of 369 (0.095 seconds)Spelling suggestions: "subject:"fhysics - aadiation"" "subject:"fhysics - eradiation""
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Measurement of electron beam emittance using optical transition radiation and development of a diffuse screen electron beam monitorReid, Carlton B. January 1990 (has links)
Thesis (M.S. in Physics)--Naval Postgraduate School, December 1990. / Thesis Advisor: Maruyama, Xavier K. Second Reader: Buskirk, Fred R. "December 1990." Description based on title screen as viewed on April 1, 2010. DTIC Identifier(s): Transition radiation, beam monitors, charged particle beams, diffuse screens, Optical Transition Radiation, Wartski Interferometers, Cerenkov Radiation, theses. Author(s) subject terms: Transition radiation, Lorentz Factor, diffraction pattern, charged particle beam profiling. Includes bibliographical references (p. 110). Also available in print.
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| 82 |
Radiative properties of molybdenum sulfide and other transition metal dichalcogenidesCharron, Luc G January 2004 (has links)
Low temperature radiative properties of the layered transition metal dichalcogenides 2H-MoS2, 2H-WS2 and 2H-WSe 2 are investigated. Synthetically grown crystals of all three materials, natural 2H-MoS2 single crystals and several 2H-MoS2 and 2H-WS2 commercial powders are studied. Steady-state photoluminescence (PL) measurements performed on the samples reveal two distinct radiative regions in the near infrared. The first region consisting of several sharp lines is produced by bound excitons related to the halogen transport agent intercalated within the van der Waals gap of the layered compounds. The second weaker region, composed of a broad spectral band, originates from the radiative recombination between an intrinsic crystal lattice defect center and the valence band in the conditions of a strong electron-phonon coupling. Time decay analysis of the bound excitonic radiative transitions is performed with time-resolved and PL intensity ratio measurements. The spectral and temperature dependence of the total radiative emissions of all three compounds are described in the framework of a two-channel kinetic recombination model in thermal equilibrium conditions. A configuration coordinate diagram is also constructed for 2H-MoS 2. PL intensity measurements performed on the 2H-MoS2 and 2H-WS2 synthetic crystals reveal a sublinear PL dependence on excitation intensity. Finally a technique developed to intercalate halogen molecules in natural 2H-MoS2 single crystals is described.
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Image guided radiation therapy applications for head and neck, prostate, and breast cancers using 3D ultrasound imaging and Monte Carlo dose calculationsFraser, Danielle January 2010 (has links)
No description available.
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| 84 |
Particle size determination for alpha-emitters using CR-39Hegyi, Gyorgy. January 1999 (has links)
No description available.
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| 85 |
Dosimetry of very small photon fieldsPaskalev, Kamen A. January 2002 (has links)
No description available.
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| 86 |
Implementation of Monte Carlo treatment planning for lung cancer patientsAl-Yahya, Khalid S. January 2002 (has links)
No description available.
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| 87 |
Development of a fast Monte Carlo code for dose calculation in a treatment planning and feasibility study of high contrast portal imagingJabbari Najafabadi, Keivan January 2009 (has links)
No description available.
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| 88 |
The use of computed tomography images in Monte Carlo treatment planningBazalova, Magdalena January 2009 (has links)
No description available.
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| 89 |
Kinetic theory of irreversible processes in a system of radiation and matterMao, Kefei January 1993 (has links)
No description available.
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| 90 |
The development of new devices for accurate radiation dose measurement: a guarded liquid ionization chamber and an electron sealed water calorimeterStewart, Kristin Joy January 2007 (has links)
No description available.
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