C.S. Cutler1 J. Fitzsimmon1 D. Medvedev1 L.F. Mausner1

1, Brookhaven National Laboratory, Upton, New York, United States

The collider accelerator complex at Brookhaven National Laboratory operates a proton LINAC which provides protons for high energy nuclear physics experiments and production of medical isotopes. The Linac proton energy can be incrementally tuned from 66 to 200 MeV in steps at 90, 118, 140, 160, 180 MeV. More than 90% of the pulses are directed via beamline to Brookhaven Linac Isotope Producer (BLIP) which was built with a shielded shaft that allows targets to be inserted into and out of beam in an underwater target station utilized for target cooling. The beam can deliver both rastered and focused beam patterns at an average current as high as 165 µA. BNL is part of the DOE tri-Lab effort consisting of ORNL, LANL and BNL to evaluate high energy proton irradiations of Thorium to provide multi-Curie quantities of Ac-225 for clinical applications. This requires developing robust targetry for the power distribution resulting from the high energy and current to developing the chemistry to isolate the Ac-225 from the thorium target. Presented will be the efforts at BNL in developing a thorium target to produce curie quantities using their 200 MeV linear accelerator as well as chemistry efforts to isolate the Ac-225 from the more than 400 other isotopes produced.