Research on cancer risk factors described by scientists at SENES Oak Ridge Inc.

A new study, "Energy dependence of dose and dose-rate effectiveness factor for low-let radiations: potential importance to estimation of cancer risks and relationship to biological effectiveness," is now available. "A dose and dose-rate effectiveness factor (DDREF) for low-linear energy transfer (LET) radiations (photons and electrons) is used in cancer risk assessments to represent an assumption that risks at low doses and low dose rates may be less than estimates that are based mainly on linear extrapolations of observed risks at higher acute doses. DDREF generally is assumed to be independent of energy," researchers in the United States report.

"However, a variety of...

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