Applying information gathering power to the design of a field lens for a high resolution fiber-fed astronomical spectrograph

Persistent Link:
http://hdl.handle.net/10150/278448
Title:
Applying information gathering power to the design of a field lens for a high resolution fiber-fed astronomical spectrograph
Author:
Vaughnn, David, 1963-
Issue Date:
1994
Publisher:
The University of Arizona.
Rights:
Copyright © 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.
Abstract:
A 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.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Physics, Optics.; Physics, Optics.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Optical sciences
Degree Grantor:
University of Arizona

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleApplying information gathering power to the design of a field lens for a high resolution fiber-fed astronomical spectrographen_US
dc.creatorVaughnn, David, 1963-en_US
dc.contributor.authorVaughnn, David, 1963-en_US
dc.date.issued1994en_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.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.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectPhysics, Optics.en_US
dc.subjectPhysics, Optics.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineOptical sciencesen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.identifier.proquest1360247en_US
dc.identifier.bibrecord.b32565501en_US
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