148Gd production cross section measurements for 600- and 800-MeV protons on tantalum, tungsten, and gold

The production of 148Gd due to the spallation of tantalum, tungsten, and gold interacting with 600- and 800-MeV protons is investigated. The cumulative 148Gd production cross section was measured using charged-particle spectroscopy at WNR's facility at LANSCE. These data are compared with previous measurements and theoretical predictions of Bertini + Dresner, CEM2k + GEM2, and INCL4-ABLA. The importance of the new data on the reaction models are discussed.