Protective Coating of Irradiation Device for Fast-Neutron Reactor

Neutron flux Measurement at Tapiro fast reactor for APD’s Irradiation fluence evaluation

The Avalanche Photodiodes (APD) were chosen as photon sensors for the barrel region of the CMS electromagnetic calorimeter. The LHC will be a hard environment for what concerns the radiation levels in the detectors. The most relevant damage on APDs is caused by neutrons that produce an increase in the dark current of these devices. In the CMS-ECAL collaboration a big effort was indeed done to u...

Determination of neutron temperature in irradiation channels of reactor

The neutron temperature is a characteristic parameter in irradiation channels of reactor. For nuclides which have resonances in the thermal neutron energy range, their Westcott g-factors are different from unity. The values of g-factors and cross-sections of (n, γ) reaction of these nuclides are temperature dependence. The standard energy for tabulation of thermal neutron cross-section (σ0) is ...

Anal neurofibrosarcoma treated with fast neutron irradiation.

Acute effects of fast neutron irradiation on mouse liver.

Until now, the multiple biological effects of ionizing radiation on liver have been reported. However, there has not been any reports of fast neutron-mediated liver injuries including liver regeneration or fibrosis. Here, we described the biological effects of acute fast neutron irradiation on the liver. After the fast neutron irradiation of 0, 0.25, 1, 2, 4 and 8 Gy on mice, hepatocyte necrosi...

Fast neutron irradiation of some Hamamatsu APD’s - preliminary results

The preliminary results of a programme of measurements of the effects of fast neutron irradiation on the performance of the Hamamatsu APDs proposed for the barrel ECAL in CMS are reported.