Transient response of CCD cameras to 14 MeV and 2.5 MeV neutrons

The mechanism of transient noise of CCD cameras induced by neutrons was analyzed. On the neutron beams of 14 MeV and 2.5 MeV, the transient noise of two different CCD cameras was measured at different fluences and different incidence angles. The preliminary results were drawn from the experiment. Transient noise induced by neutron usually appears as sharp spikes or impulses affecting one or a small cluster of pixels. The results are consistent with theoretical estimates. We also obtained the variation characteristics of transient noise induced by neutrons of different fluences, or different energies, or different incidence angles. In addition, we investigated the transient noise as a function of the size of CCD pixel.