MEASUREMENT AND CALCULATION OF CF-252 FISSION NEUTRON-INDUCED GAMMA-FIELDS IN IRON

The **2**5**2Cf fission neutron-induced gamma fields in iron have been investigated experimentally and theoretically The gamma leakage spectra from a series of relatively small iron spheres and the space-dependent gamma spectra within a relatively large steel pile have been measured with an absolutely calibrated Si(Li) Compton spectrometer in the energy range from 0. 3 to 3 MeV. In addition, neutron spectra (with a spherical proton recoil proportional counter and a **3He semiconductor spectrometer) and **2**3**5U fission rates have been measured within the steel pile. The measurements are compared with calculations.