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A cryogenic detector for submillimetre astronomy

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dc.contributor.advisor Naylor, David
dc.contributor.author Gom, Bradley Gustav
dc.contributor.author University of Lethbridge. Faculty of Arts and Science
dc.date.accessioned 2007-04-24T21:10:12Z
dc.date.available 2007-04-24T21:10:12Z
dc.date.issued 1999
dc.identifier.uri http://hdl.handle.net/10133/102
dc.description xiv, 156 leaves : ill. ; 28 cm. en
dc.description.abstract Over the last several years, a submillimetre astronomical polarizing Fourier Transform Spectrometer (FTS) has been developed for use at the James Clerk Maxwell Telescope (JCMT) located atop Mauna Kea, Hawaii. A new liquid3 He cooled dual polarization detector system has been carefully designed for use with this FTS to eliminate noise problems encountered with UKT14, the JCMT facility bolometric detector. The objective of this thesis is to evaluate and optimize the performance of the new detector system. The design of the detector system is discussed, and the noise performance of the system is evaluated. The system performance is determined from photmetric, classical B-I, and spectroscopic measurements. Compared to UKT14, the intrinsic bolometer noise is reduced by a factor of - 2. More importantly, the spectral signal to noise ratio is improved by a factor of - 10 due to the elimination of electrical pickup and microphone noise in the detector signal. en
dc.language.iso en_US en
dc.publisher Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 1999 en
dc.relation.ispartofseries Thesis (University of Lethbridge. Faculty of Arts and Science) en
dc.subject Fourier transform spectroscopy en
dc.subject Fourier transform spectroscopy -- Noise en
dc.subject Submillimeter astronomy en
dc.subject Dissertations, Academic en
dc.title A cryogenic detector for submillimetre astronomy en
dc.type Thesis en
dc.publisher.faculty Arts and Science
dc.publisher.department Department of Physics

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