Helolo Radsafers, Can anyone supply me with info regarding Zirconium-88 (e.g. Half-Life, byproduct material vs. accelrator produced). Any and all info would be greatly appreciated. Thanks. Bob Dunn rso.gscancer@worldnet.att.com P.S. If Darrel Fisher is "listeninf", please send me an e-mail with your phine # and e-mail address please. Thanks