Pinhole cameras: artifacts modifications, and recording of pinhole images of screen-film systems.
This paper will discuss three points concerning the x-ray pinhole camera: a) pinhole artifacts, which may erroneously be interpreted as off focus radiation, will be described along with a simple method of eliminating these artifacts, b) modifications to a commercially available pinhole camera which simplifies its use and allows for the proper leveling of the pinhole mounting plate will be presented, and c) the use of screen-film cassettes to reduce the required technique for recording the pinhole image will be discussed along with data indicating the expected error with this technique relative to dental film recording.
D011859:Radiography / Q000295:instrumentation; D013679:Technology, Radiologic / Q000295:instrumentation*