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dc.contributor.authorVaughnn, David, 1963-
dc.creatorVaughnn, David, 1963-en_US
dc.date.accessioned2013-04-03T13:24:55Z
dc.date.available2013-04-03T13:24:55Z
dc.date.issued1994en_US
dc.identifier.urihttp://hdl.handle.net/10150/278448
dc.description.abstractA new figure of merit, the potential information gathering power, P , is developed for use in evaluating the performance of spectrographs. It is based on the premise that it is desirable to maximize the product of the SNR at each resolution element in the reduced data by the number of resolution elements. Because of this general intent, it places no a priori emphasis on any particular scientific use. This figure is then applied to the task of improving the performance of a real fiber-fed astronomical spectrograph when it is operated in its high-resolution mode. It is shown that the optimum configuration corresponds to adding a new field lens, changing the focal length and size of the collimator, and arranging the camera and collimator axes to the narrowest allowable geometry. An approximate gain of between 15% to 18% may be realized.
dc.language.isoen_USen_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.subjectPhysics, Optics.en_US
dc.subjectPhysics, Optics.en_US
dc.titleApplying information gathering power to the design of a field lens for a high resolution fiber-fed astronomical spectrographen_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.levelmastersen_US
dc.identifier.proquest1360247en_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineOptical Sciencesen_US
thesis.degree.nameM.S.en_US
dc.identifier.bibrecord.b32565501en_US
refterms.dateFOA2018-09-04T04:59:34Z
html.description.abstractA new figure of merit, the potential information gathering power, P , is developed for use in evaluating the performance of spectrographs. It is based on the premise that it is desirable to maximize the product of the SNR at each resolution element in the reduced data by the number of resolution elements. Because of this general intent, it places no a priori emphasis on any particular scientific use. This figure is then applied to the task of improving the performance of a real fiber-fed astronomical spectrograph when it is operated in its high-resolution mode. It is shown that the optimum configuration corresponds to adding a new field lens, changing the focal length and size of the collimator, and arranging the camera and collimator axes to the narrowest allowable geometry. An approximate gain of between 15% to 18% may be realized.


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