Large-format photon-counting arrays

Journal Article · Fri Jul 01 00:00:00 EDT 1988 · Publ. Astron. Soc. Pac.; (United States)

DOI:https://doi.org/10.1086/132246· OSTI ID:6685471

Rodgers, A W; Van Harmelen, J; King, D; Conroy, P; Harding, P

Recently-constructed large-format photon-counting arrays used as spectroscopic and imaging detectors are described. The photon-counting imaging systems use microchannel plate intensifiers which are optically coupled to multiple CCDs through fiber-optic conduits. S-20 quartz substrate cathodes are used in the blue and NEA Ga-As cathodes for wavelengths greater than 580 nm. Event centering results in detector resolution of 42 lp/mm at 50 pct modulation, being fundamentally limited by the microchannel plate pore diameter of 12 microns. The current systems have 1460 x 960 pixels format. The dead space between module CCDs is 30 microns. There is, in principle, no limit to this format. 6 references.

• Research Organization: Mount Stromlo and Siding Spring Observatories, Canberra (Australia)
• OSTI ID: 6685471
• Journal Information: Publ. Astron. Soc. Pac.; (United States), Vol. 100
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
47 OTHER INSTRUMENTATION
ASTROPHYSICS
PHOTOMETERS
CHARGE-COUPLED DEVICES
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IMAGE INTENSIFIERS
MEMORY DEVICES
SIGNAL-TO-NOISE RATIO
MEASURING INSTRUMENTS
SEMICONDUCTOR DEVICES
640100* - Astrophysics & Cosmology
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