U.S.-based radiation detection and monitoring products provider Mirion Technologies Inc. plans to expand its senior secured term loan by $80 million. The company intends on using the proceeds to fund a partial repurchase of convertible preferred stock. We are affirming our 'B' corporate credit rating and issue-level ratings on the company. The outlook is stable, reflecting our expectations that the company will continue to operate within credit measures commensurate for the rating. NEW YORK (Standard&Poor's) Feb. 13, 2013--Standard&Poor's Ratings Services said today that it affirmed its ratings on San Ramon, Ca.-based Mirion Technologies Inc., including the 'B' corporate credit rating. The outlook is stable. At the same time, we affirmed our 'B' issue rating on the