[Reduction of the radiation exposure in photofluorography by using rare earth-based fluorescent screens].

The use of highly sensitive fluorescent screens based on gadolinium in photofluorography results in considerable reduction of radiation exposure compared with conventional screens. The exposure to radiation can be reduced to a value which is hardly higher than that of a large format image. The image quality is enhanced by the incorporation of new screens because of shorter exposure times. Gadolinium foils with high image amplification are already available on a commercial basis. Exchanging them in photofluorograph equipment presents no problem.