Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976pasp...88..960s&link_type=abstract
Astronomical Society of the Pacific, Publications, vol. 88, Dec. 1976-Jan. 1977, p. 960-965.
Astronomy and Astrophysics
Astronomy
111
Astronomical Spectroscopy, Photons, Quantum Counters, Spectrometers, Image Intensifiers, Multiplexing, Optical Emission Spectroscopy, Seyfert Galaxies
Scientific paper
A multichannel detector system is described in which the positions of individual photon events in a high-gain image intensifier are decoded in the output of a video detector. The high-gain intensifier consists of a pair of three-stage electrostatic image-tube assemblies each containing three fiber-optically-coupled tubes potted in a rugged package with an internal high-voltage supply. Operation of the electrooptical system is discussed along with the pulse-detection process and the operation of the spectrograph in which the image-tube assembly is mounted. It is noted that the spectrometer detects 1.0 count/sec per A for an object of magnitude 13.0 at the peak of its response in the visual band when no light is lost on the slit, that a 10% coincidence correction is reached at an overall count rate of 860 per sec, and that the response follows an exponential law up to count rates of about 4000 per sec. The measured spectrum of the Seyfert galaxy NGC 5548 is provided as an example of the raw data produced by the instrument on a 1.5 meter telescope.
Hiltner William A.
Shectman Stephen A.
No associations
LandOfFree
A photon-counting multichannel spectrometer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A photon-counting multichannel spectrometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A photon-counting multichannel spectrometer will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1052384