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Record 20 of 7498
The Lick Observatory image-dissector scanner.
Author and Affiliation:
Robinson, L. B.
Wampler, E. J.(Lick Observatory, Santa Cruz, Calif., United States)
Abstract: A scanner that uses an image dissector to scan the output screen of an image tube has proven to be a sensitive and linear detector for faint astronomical spectra. The image-tube phosphor screen acts as a short-term storage element and allows the system to approach the performance of an ideal multichannel photon counter. Pulses resulting from individual photons, emitted from the output phosphor and detected by the image dissector, trigger an amplifier-discriminator and are counted in a 24-bit, 4096-word circulating memory. Aspects of system performance are discussed, giving attention to linearity, dynamic range, sensitivity, stability, and scattered light properties.
Publication Date: Feb 01, 1972
Document ID:
19720042025
(Acquired Dec 04, 1995)
Accession Number: 72A25691
Subject Category: INSTRUMENTATION AND PHOTOGRAPHY
Document Type: Journal Article
Publisher Information: United States
Contract/Grant/Task Num: NSF GP-29684; NGL-05-061-008; NGR-05-061-006
Financial Sponsor: NASA; United States
Description: 6p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ASTRONOMICAL OBSERVATORIES; ASTRONOMICAL SPECTROSCOPY; IMAGE DISSECTOR TUBES; OPTICAL SCANNERS; STELLAR SPECTRA; COMPUTER STORAGE DEVICES; CONFERENCES; COUNTING CIRCUITS; ELECTROMAGNETIC PULSES; PHOTONS
Imprint And Other Notes: (Symposium on Advanced Electronic Systems for Astronomy, Santa Cruz, Calif., Aug. 31-Sept. 2, 1971.) Astronomical Society of the Pacific, Publications, vol. 84, Feb. 1972, p. 161-166.
Availability Source: Other Sources
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