coded mask
coded mask
[′kōd·əd ‚mask] (engineering)
A pattern of tungsten blocks that absorb gamma-ray photons in a gamma-ray telescope, and are arranged so that an astronomical gamma-ray source projects on a position-sensitive detector a pattern that is characteristic of the direction of arrival of the photons.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
FlatCam shares its heritage with lens-less pinhole cameras, but instead of a single hole, it features a grid-like
coded mask positioned very close to the sensor.
However, although the part model is fixed for a given inspection task, the
coded mask may change for different parts of the same class.
They squabble, eat pizza, say "Cowabunga!" and wear colour
coded masks.
Copyright © 2003-2025 Farlex, Inc
Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.