Well here's some information about microwave treatment of cancer: <a href="http://www.cancer.org/docroot/ETO/content/ETO_1_4X_Types_of_radiation_used_to_treat_cancer.asp?sitearea=ETO" target="_blank">http://www.cancer.org/docroot/ETO/content/ETO_1_4X_Types_of_radiation_used_to_treat_cancer.asp?sitearea=ETO</a> So I wouldn't bet on it nor would I bet on communication microwave devices such as klystrons to do what magnetrons are already doing and made for.