Spoilt films in X-ray departments

Publication of the survey undertaken by R. J. Berry and R. Oliver (May, 1975) coincided with the installation of a Du Pont Cronex Daylight Chest Changer at the Wollongong Hospital which we hoped would reduce our proportion of spoilt films. All four departments surveyed by Berry and Oliver are known to one of us (A. McK). The Wollongong Hospital, apart from its 500 bed size, corresponds most closely to the district general hospital of their survey; approximately 30,000 examinations are performed each year.