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G S Innes

Publications and source records attributed to G S Innes.

6 recordsLinked to original sources
PubMed1983

Electron contamination of large cobalt 60 photon beams.

Experimental results are presented of the electron contamination of cobalt 60 gamma photon beams from the Mobaltron MS80, over a range of SSD's from 60 cm to 3.5 m. In the absence of an electron filter, the skin dose can exceed the dose at 4 mm depth by up to 1.6 times due to the high level of electron emission from the depleted uranium collimators. 4 mm of perspex effectively removes these electrons, and in the filtered beam, the skin dose cannot exceed the 4 mm dose. The electron contamination of a 6 MV X-ray beam is compared.

Cobalt Radioisotopes↗