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Filtering by: Creator Envall, Kenneth Roy Language English [eng]

Measurement of gastro-intestinal and gonadal exposures in routine upper gastro-intestinal examinations using a conventional and an image intensifier fluoroscope

Creator:

Envall, Kenneth Roy

Abstract:

This study modified certain existing techniques used in the determination of the radiation exposure to various anatomical structures of the gastro-intestinal tract during fluoroscopic examinations. Monitoring films were attached directly to the patient during the routine upper gastro-intestinal examination, instead of placing the films on the panel of the fluoroscope....

Resource Type:

Masters Thesis

Full Text:

AN ABSTRACT OF THE THESIS OF Kenneth Roy Envall for the M. S. in Radiological Physics (Name
Determining in-channel (dead zone) transient storage by comparing solute transport in a bedrock channel–alluvial channel sequence, Oregon

Creator:

Gooseff, Michael N., LaNier, Justin, Haggerty, Roy, and Kokkeler, Kenneth

Abstract:

Current stream tracer techniques do not allow separation of in-channel dead zone (e.g., eddies) and out-of-channel (hyporheic) transient storage, yet this separation is important to understanding stream biogeochemical processes. We characterize in-channel transient storage with a rhodamine WT solute tracer experiment in a 304 m cascade-pool-type bedrock reach with no...

Resource Type:

Article

Full Text:

Justin LaNier, Roy Haggerty, and Kenneth Kokkeler1 Department of Geosciences, Oregon State University