Speaker
Michael Wohlmuther
(Paul Scherrer Institut)
Description
Results of numerical calculations and the experimental characterization of the neutron flux profile at the ultracold neutron (UCN) source of the Paul Scherrer Institut (PSI) are presented. At first, the MCNPX-based model of the Monte-Carlo simulation with its detailed description of the so-called ``Cannelloni''-type spallation target assembly and the realistic proton beam profile modeling is described. Thereafter the experimental determination of the thermal neutron flux profile using gold foil activation, along the height of the UCN tank, starting from the proton beam plane, is presented. Both calculations and measurements were performed for standard beam parameters, with the full proton beam on target. Finally, a comparison of simulation and experimental result is discussed.
Primary authors
Michael Wohlmuther
(Paul Scherrer Institut)
Dr
Vadim Talanov
(Paul Scherrer Institut (PSI))
