| collimator |
a small telescope attached to a large telescope to use in setting the line of the larger one optical device consisting of a tube containing a convex achromatic lens at one end and a slit at the other with the slit at the focus of the lens; light rays leave the slit as a parallel beam
Ãâó: wordnet.princeton.edu/perl/webwn
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| collimator |
(col
Ãâó: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| collimator |
A collimator is a device used to filter a stream of rays (such as X-rays) so that only those travelling parallel to each other in a certain direction are allowed through. The picture shows a lead collimator used in X-ray machines. The image will be recorded on the plate at the left of the picture. ...
Ãâó: en.wikipedia.org/wiki/Collimator
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| collimator |
A shield placed in the path of a primary beam to restrict the size of that radiation beam.
Ãâó: www.hc-sc.gc.ca/hecs-sesc/ccrpb/publication/safety...
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| collimator |
means a radiation shield that is placed on the end of the guide tube or directly onto a radiographic exposure device to restrict the size of the radiation beam when the sealed source is cranked into position to make a radiographic exposure.
Ãâó: www.nrc.gov/reading-rm/doc-collections/cfr/part034...
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