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Advances in detectors for astronomical spectroscopy
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1982Abstract Image-reproducing detectors for ultraviolet, optical and near infrared spectroscopic applications in astronomy are described. Emphasis is placed on detectors of the image photon-counting type and on charge-coupled devices.
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2016
The charge-coupled device (CCD) is the foremost imaging device in observational astronomy. The CCD has high quantum efficiency and linearity compared to film, but it suffers from several sources of noise. We illustrate how to reduce noise by backing and applying flat, bias, and dark frames.
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The charge-coupled device (CCD) is the foremost imaging device in observational astronomy. The CCD has high quantum efficiency and linearity compared to film, but it suffers from several sources of noise. We illustrate how to reduce noise by backing and applying flat, bias, and dark frames.
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Detectors for THz astronomical imaging and spectroscopy
IEEE Photonics Conference 2012, 2012The universe shines very brightly in the THz band. I will describe some of the technological developments that have led to an exponential, Moore's-law improvement in our ability to study the universe at THz frequencies.
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Josephson Detectors Make Astronomical Observations
Physics Today, 1970Since the discovery of the Josephson effect, astronomers have been intrigued with the possibility of using junctions of two superconductors connected by a weak link to detect millimeter and submillimeter radiation from astronomical objects. Now Bruce T.
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Avalanche diodes as photon-counting detectors in astronomical photometry
SPIE Proceedings, 2000Photon-counting silicon avalanche photo-diodes (APDs) offer very high quantum efficiency, and might eventually replace photocathode detectors in high-speed photometry of astronomical objects. Laboratory studies have been performed on both passively and actively quenched APDs.
Dainis Dravins, Daniel Faria, Bo Nilsson
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Large format imaging photon detector for astronomical spectroscopy
Review of Scientific Instruments, 1987We describe the design and development of a large format 40-mm active diameter imaging photon detector. The design comprises an S20 semitransparent photocathode proximity focused onto a stack of two microchannel plates clamped back to back having channel length to diameter ratios of 80:1.
M. Clampin, R. P. Edwin
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Recent astronomical detector development at the University of Arizona
SPIE Proceedings, 2012The University of Arizona Imaging Technology Laboratory (ITL) has been developing back illuminated detectors and detector technologies for several astronomical projects in recent years. These projects include the WIYN telescope One Degree Imager (ODI) mosaic of Orthogonal Transfer Array CCDs, the VIRUS detectors for the University of Texas' Hobby ...
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Development of the MIC photon-counting detector for astronomical applications
SPIE Proceedings, 1990The MIC, a 40-mm intensified microchannel-plate photo-counting detector being developed for the Anglo-Australian, Isaac Newton, and William Herschel telescopes, is described and illustrated with diagrams and sample spectra. The MIC is linked by optical fibers to a fast-scanning CCD detector, and an accurate centroiding technique is applied to yield an ...
John L. A. Fordham +3 more
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Considerations about far infrared detectors for astronomical purposes
Infrared Physics, 1973Abstract In this paper we are dealing with the “throughput” ΩS and with the optical bandwidth Δλ of an IR-detector when it is employed at the focus of a telescope to observe point-like sources. We have found that the maximum signal-to-noise ratio is obtained for ΩS≃ λ2 and Δλ ≃ λ.
B. Carli, F. Melchiorri
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Integrated detector array preprocessing for infrared astronomical applications
Conference on 'Smart' Sensors, 1978On-board preprocessing of astronomical data from integrated infrared detector arrays and discrete detectors will allow increases in sensitivity and reductions in costs for observations from cryogenic space telescopes. A variety of preprocessing functions for this application, which could be implemented either through analog on-chip devices or through ...
C. MCCREIGHT, H. LUM
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