Study of Photo-Production of Radioactive Ion Beams

                              Nikita Bernier
                                 TRIUMF

Abstract:
TRIUMF laboratory is constructing a 50 MeV, 10 mA superconducting electron
linear accelerator as part of its future Advanced Rare IsotopE Laboratory
(ARIEL) project. The electrons will be used to produce radioactive beams via
electron-driven photo disintegration of 9Be. The photons necessary for the
photo-fission are produced by braking radiation when the electrons pass through
a heavy metal converter, such as Tantalum or Tungsten. The current FLUKA project
consists in the study of photo-production of 8Li through the reaction
9Be(a,p)8Li. This requires the photonuclear interactions to be activated for
the simulation. Detailed transport of electrons and photons is also required. We
are interested in scoring the energy deposition in the target and the production
rate of rare isotopes. Also of interest is the equivalent dose outside the
target chamber from the residual activation after end of bombardement. The
9Be-160 production target is modeled from specifications of the Institut de
Physique Nucleaire Orsay, without a converter, where the preliminary tests will
take place later this year. This presentation will focus on the modeling of the
target and the cards required for simulating photo-fission with an electron
beam.