Speakers
Description
The Bonn Isochronous Cyclotron provides light ion beams with a charge-to-mass ratio Q/A ≥ 1/2 and kinetic energies ranging from 7 to 14 MeV per nucleon to one of five experimental sites. It is planned to extend the facility’s irradiation and experimentation capabilities by providing a neutron beam at one of the experimental areas in the near future. The neutrons are produced in a thick carbon converter through the deuteron breakup and proton stripping reactions. Protons are stopped in the converter whereas the neutrons’ flux and angular energy distribution is optimized by a subsequent copper/tungsten collimator.
Geant4 simulations were done and benchmarked against literature in preparation. The predicted neutron yield is in the order of 1e7 neutrons/s, the beam profile is a circular flat top beam with a FWHM of approx. 4 cm and energy distribution is centered around 10 MeV. The beam profile was measured by using a 2D-Line-Scan with a scintillator with n-gamma discrimination properties. The energy distribution will be measured with activation foils.
This contribution gives an overview of the setup and compares the simulated beam profile with experimental measurements.
| Paper status | Proceeding files received |
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