Mar/Apr 1999 Feature Articles: New Advances In Filmless Radiography - by Peter K. Soltani, Timothy E. Kinsella, Martin J. Dowling, Dan Wysnewski, Ken Swartz Health And Safety: Ultraviolet Radiation In The Workplace Technical Tips: Developer, UV Intensity and the Probability of Detection Ultrasonic Technique Development Using Imagine3D - by Walter Weber, Doug Mair Tricks Of The Trade - submitted by Douglas Whitely