coded-aperture telescope

coded-aperture telescope

[‚kōd·əd ‚ap·ə·chər ′tel·ə‚skōp]

(astronomy)

A soft gamma-ray telescope that uses a coded mask to image celestial sources; the position of a gamma-ray source is determined by comparing the observed projection pattern of the mask with all possible projection patterns.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.