Neutrons at the cyclotron:

p+Be neutrons:          Neutron energy range:          0 – 16 MeV (continuous spectra)          Maximum intensity at zero degree direction:          1.5 * 1016 sr-1C-1 (at 18 MeV proton energy)          Typical flux rate at zero degree direction:          2.5 * 109 cm-2s-1 (at 18 MeV proton energy)          Maximum flux rate at zero degree direction:          5.0 * 109 cm-2s-1 (at 18 MeV proton energy)          Description of the fields:          anisotropic and in-homogenous fields in air with some gamma contribution          depending on the irradiation conditions; the fields are not collimated and not          filtered; panorama-like irradiation is feasible          Typical gamma contribution:          ~ 8 % of the neutron dose absorbed in human muscle equivalent media          Minimum source sample distance: 10 cm          Maximum source sample distance: 150 cm          Metrology background:          ionisation chambers, thermoluminescent ribbons, multifoil activation technique

d+Be neutrons:          Neutron energy range:          0 – 12 MeV (continuous spectra)          Maximum intensity at zero degree direction:          0.8 * 1016 sr-1C-1 (at 10 MeV deuteron energy)          Typical flux rate at zero degree direction:          1.5 * 109 cm-2s-1 (at 10 MeV deuteron energy)          Maximum flux rate at zero degree direction:          3.0 * 109 cm-2s-1 (at 10 MeV proton energy)          Description of the fields:          anisotropic and in-homogenous fields in air with some gamma contribution          depending on the irradiation conditions; the fields are not collimated and not          filtered; panorama-like irradiation is feasible          Typical gamma contribution:          ~ 8 % of the neutron dose absorbed in human muscle equivalent media          Minimum source sample distance: 10 cm          Maximum source sample distance: 150 cm          Metrology background:          ionisation chambers, thermoluminescent ribbons, multifoil activation technique