Thermal Neutron Digital Imaging System Based Cooled CCD

The imaging system is one of key assembles of neutron radiography facility. The collimator neutron flux is drawn from the horizontal channel by the use of SPRR-300 as a neutron resource. The convector made of 6LiFZnS(Ag) and the long focus professional twilight lens with the small field of view are used, and the digitalized CCD(Charge Coupled Device) camera is developed by the use of scientific grade CCD chip, the double thermocouple refrigeration and 14bit A/D convector. The image grabbing, processing and analyzing software of double bytes has been developed by the use of Visual C++ and C++ Builder, and the facility of anti-radiation for CCD is set up. The experiments show that the used technology is reasonable, and the destination of design is arrived at and the image quality can be matched with similar device at abroad.