(bŭk'ē )

German-born U.S. radiologist, 1880–1963.

B. diaphragm A specialized film holder with a moving grid located immediately beneath the radiographic table or upright apparatus. It decreases the effects of scatter and secondary radiation during a radiographic exposure. SYN: Potter-Bucky diaphragm.

B. factor A measure of the amount of radiation absorbed by the Bucky diaphragm. This indicates the amount by which to increase the technical factors when a grid is being used.