Low-frequency transmission of the chest in an outpatient population: implications for the AMBER imaging system

The human chest is a demanding object for conventional radiography. There is a large difference in X-ray lransmittance between the lung and the mediastinal areas. In order to create an image which can be judged in a single view one has resorted to high kVp exposures and the use of wide latitude receptors. In a study on an out-patient population the X-ray transmittance of the chest was measured. From these data a sample response for the AMBER imaging system is derived.