Thesis (M.S.)--University of Michigan, 1966. / Degree awarded Dec. 1966. Project completed April 1967.

Thesis (M.S. in Physics)--Naval Postgraduate School, June 1990. / Thesis Advisor(s): Neighbours, J.R. Second Reader: Colson, W. B. "June 1990." Description based on title screen as viewed on October 16, 2009. DTIC Identifier(s): Rise Time Effects. Author(s) subject terms: Cerenkov Radiation, Semi-Infinite Path, Rise Time Effects. Includes bibliographical references (p. 51). Also available in print.

Active interrogation of cargo containers employing monoenergetic photons offers an expeditious low-dose approach in pursuit of shielded special nuclear materials. Cherenkov detectors can be used for a variety of purposes, including imaging of the cargo contingent upon gamma ray energies used in interrogation. If the gamma ray energies are sufficiently well separated, as the case in $^{11}$B(d,n-$\gamma$)$^{12}$C reaction resulting in 4.4 MeV and 15.1 MeV photons, spectral analysis using Cherenkov detectors is possible. Applying an array of custom designed Cherenkov detectors reduce undesired low energy background, both natural and scatter from the application environment, while producing the capability of high contrast transmission imaging. Spectral analysis of the image can be used to confirm the presence of high-Z materials by analyzing the relative transmission of the two main energies emitted by exploiting the large difference in Compton Scatter and pair production cross sections. These detectors require a special approach to design and energy calibration due to the lack of resolution in order for spectral analysis to take place. This thesis addresses the design and utility of Cherenkov detectors for active interrogation with monoenergetic photons as well as the results of computational and experimental studies of their energy calibration and application to imaging with material identification.

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Thesis (M.S. in Physics)--Naval Postgraduate School, June 2009. / Thesis Advisor(s): Neighbours, John R. "June 1990." Second Reader: Buskirk, Fred R. Description based on title screen as viewed on 19 October 2009. DTIC Identifier(s): Electron accelerators, leakage (electrical), phermex acceleration, DCS (Digitizing Camera System), theses. Author(s) subject terms: Cherenkov radiation, transition radiations, EMP, radio frequency radiation, electron beam. Includes bibliographical references (p. 78-79). Also available in print.

No description available.

"January 2002." / Bibliography: p. 147-152. / x, 152 p. : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.)--University of Adelaide, Dept. of Physics and Mathematical Physics, 2002

Investigations of the cosmic ray flux around the " knee " in the all - particle energy spectrum can provide information on the origin of this steepening. Studies of air shower development in this region are especially informative, although experiments in recent years have produced some conflicting results. Some report an unusually rapid development of showers, which has been interpreted in terms of an increased proportion of heavy nuclei in the flux, compared with the directly measured low energy composition. This thesis describes measurements of the lateral distribution of Cerenkov light associated with air showers with sea level sizes between ~ 10 ^ and 1O7 particles. It is shown that the slope of the lateral distribution is sensitive to air shower development and that the shape is in agreement with the results of recent calculations. These calculations are used to assign depths of maximum to the showers observed. A comprehensive simulation of the selection biases present in the experiment is used in the interpretation of the results on the depth of shower maximum. The data are shown to be consistent with a cosmic ray composition rich in iron in the energy region studied. / Thesis (Ph.D.)--Department of Physics, 1985.