To prove that X-ray paper is of adequate quality for use in the radiologic quality control of NTR fuel eleaents a comparison was made between X-ray paper and X-ray film. Radiologic control Is applied in radiography of U/Al cast blocks (30 mm thick) from which MTR fuel plates are rolled down. The plates themselves are also controlled by radiography, and fuel plates radiographs can be further used to assess the homogeneity of the uranium distribution in the plate. The quality of plate radiographs was aasasait by measuring radiographic density contrast under an Al step wedge. The Al equivalentes of a test plate were also determined by densitonatric scanning. The quality of U/Al cast blocks radiographs was Judged by using IQI's of ISO type (in the fore of holes drilled in the block itself) and ASTM type (plate with holes»placed on the block). All comparative work was done using Kodak aed Agfe-Cevaert X-ray paper and fluorescent intensifying screens as well as X-ray fils (noscreen for plate radiography, Pb intensifying screen« for block radiography). The results proved that X-ray paper is of sufficient good quality to be used for radiologic control of MTR fuel elements. Its use gives considerable gains in exposure and processing times, as well as in the cost of the radiographic material.
|Place of Publication||Roskilde, Denmark|
|Publisher||Risø National Laboratory|
|Number of pages||13|
|Publication status||Published - 1976|