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dc.creatorActon, Daniel Scott
dc.date.available2011-02-18T21:52:29Z
dc.date.issued1990-08
dc.identifier.urihttp://hdl.handle.net/2346/17103en_US
dc.description.abstractA 57-actuator segmented active mirror system designed for real-time correction of phase distortions due to atmospheric turbulence is described. Solar images and wavefront tilt data obtained with the active mirror system during a recent observing run are discussed. The standard model for imaging through atmospheric turbulence is described. Based on this model, mathematical expressions for the atmospheric coherence diameter, the tilt-corrected wavefront phase structure function, and the corrected and uncorrected modulation transfer functions are developed. Analytical expressions as well as functional relationships obtained through computer modeling are presented. The data are analyzed to check for agreement with the theoretical predictions from the standard model. The analyses indicate that while the standard model may be adequate to describe atmospheric turbulence in some instances, it is often quite inadequate. The analyses also show that the degree of correction performed by the active mirror system was less than ideal.
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherTexas Tech Universityen_US
dc.subjectMeteorological opticsen_US
dc.subjectSolar telescopesen_US
dc.subjectAtmospheric turbulenceen_US
dc.titleReal-time solar imaging with a 19-segment active mirror system: a study of the standard atmospheric turbulence model
dc.typeDissertation
thesis.degree.namePh.D.
thesis.degree.levelDoctoral
thesis.degree.disciplinePhysics
thesis.degree.grantorTexas Tech University
thesis.degree.departmentPhysics
dc.degree.departmentPhysicsen_US
dc.rights.availabilityUnrestricted.


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