Evaluation Of Carbon-Fiber Cassettes

The use of carbon fiber for cassette fronts and table tops has been advanced as a method of reducing x-ray exposure. We have evaluated a carbon fiber cassette by comparison to a Kodak X-omatic cassette. Although the transmission of the carbon fiber is considerably high-er than that of the X-omatic cassette, the radiation saving is limited to low kVp's. Al-though some decrease in primary/scatter ratio was measured, the overall contrast increased somewhat over most of the kVp range investigated.