A space camera uses TDI-CCD devices as its imaging sensor. In order to evaluate the influence which is caused by space radiation environment on TDI-CCD
starting with the circuit structure of the devices
the total dose effects (TDEs) and the primary capability index of the devices are analyzed. Then the test equipment and the test methods of the devices for 60Co γ irradiation experiment are studied. In irradiation experiment
the photoelectric response capability and the contrast transfer function (CTF) are tested. By analyzing the experiment results
the following aspects have been concluded that the change of the relative responsibility
dark signal
dynamic range
SNR and CTF of TDI-CCD are below 5% when the irradiation dose is 20 kRad(Si). The TDI-CCD can satisfy the use of the space camera.