Selenium-72

ISOTOPE ⁷²Se
Half Life / Daughter	8.5 days to arsenic-72
Major Radiation	Gamma - 46.0 keV
Form	Selenium (IV) in 1 M HCl
Activity	1 mCi/ml (concentration)
Radiopurity	> 99.9%
PRODUCTION
Source	Spallation by protons in rubidium bromide targets
Processing	Dissolution, precipitation, filtration, re-dissolution
DISTRIBUTION
Shipment	Crimp-seal glass vials
Availability	Limited
Unit of Sale	Millicuries
Contact	Oak Ridge National Laboratory Isotope Business Office Call: (865) 574-6984 Fax: (865) 574-6986 email: isotopes@ornl.gov