Ir-192 Basic Physics Data from TG43

Half-life: 73.83 days
Photon energy: 0.38 MeV (avg)
Half-value layer: 2.5 mm lead
Recommended dose rate constant in water: 1.12 cGy/U-hr
Air kerma strength conversion factor: 7.227 U/mgRaEq

seeds are available from numerous distributors.

Alpha-Omega Services, 16220 Gundry Ave.
Paramount, CA 90723 (213) 630-4221

Best Industries, Inc., 7643-B Fullerton Road
Springfield, VA 22153 (703) 451-2378