Patent ID: 6346709
Filing Date: 2002-02-12
Classification: G01T

Abstract:
An alpha, beta and gamma radiation monitor for radioactive contamination, comprisinga chamber having a wall and a lower surface; a microscope extending through said wall opposes an electrometer, said electrometer protruding through said wall and having a carbon fiber within said chamber to generate a carbon fiber image; a covering means mounted on an upper edge of said wall; said covering means further comprising a plurality of radiation windows, each of said plurality of radiation windows being removable and being sufficiently thin for discrete types of radiation to penetrate said chamber; said monitor being placed in proximity to a radioactive contamination sample; an alpha window of said plurality of radiation windows permitting alpha particles from said radioactive contamination sample to penetrate said chamber; said alpha particles emitting an alpha energy; and said alpha particles generating an ionization charge causing said carbon fiber image to move upscale as a function of time to produce an alpha particle reading.