Open AccessSOLID ANGLE SUBTENDED BY A CIRCULAR APERTURE AT POINT AND SPREAD SOURCES: FORMULAE AND SOME TABLES
Author(s) -
A.H. Jaffey
Publication year - 1952
Language(s) - English
Resource type - Reports
DOI - 10.2172/4393519
Subject(s) - solid angle , point (geometry) , aperture (computer memory) , physics , geometry , optics , geodesy , mathematics , geography , detector , acoustics