Author/Authors :
Szerypo، نويسنده , , J. and Gross، نويسنده , , M. and Grossmann، نويسنده , , R. and Habs، نويسنده , , D. and Kester، نويسنده , , O. and Maier، نويسنده , , H.-J. and Thirolf، نويسنده , , P. and Zech، نويسنده , , E. and Faestermann، نويسنده , , T. and Krücken، نويسنده , , R. and Maier-Komor، نويسنده , , P. and Nebel، نويسنده , , F.، نويسنده ,
Abstract :
The Munich Accelerator for Fission Fragments (MAFF) facility planned at the research reactor FRM-II in Munich is dedicated to produce, cool and accelerate high-intensity neutron-rich radioactive beams. The radioactive beam of fission fragments results from bombarding a uranium target by the thermal neutrons emerging from the reactor. Part of the nuclides is released from the target/ion source unit in a non-ionized state. This contribution is concerned with simulating the distribution of the non-ionized radioactivity along the MAFF beamline. The calculations are performed with the help of the computer program MOVAK3D. The calculated fraction of non-ionized radioactivity at the border of the experimental area is at the level of about 10−7, relative to the activity produced in the target.
Keywords :
Radiation safety , Particle sources and targets , Fission reactor , Sources of radioactive nuclei
