X=ray diagnostic test phantom increasing parameters with single exposu - has several units with transducers, filters and quotient element

摘要

Test phantom for quality control in x-ray diagnostics has several units interacting with x-rays. The first unit has 2 transducers for converting x-rays into a.c. signals with a linear characteristic, a filter, which defines and gives different strong redn. in the x-radiation to the 2 transducers and a quotient element, the output signal of which is a measure of the quotient of the time integrals of the a.c. signals. This phantom increases the no. of test parameters that can be obtd. with a single x-ray exposure.