Dysprosium-166 / Holmium-166

ISOTOPE ¹⁶⁶Dy/¹⁶⁶Ho
Half Life / Daughter	Dy-166, 81.5 hours - decays to holmium-166 Ho-166, 26.8 hours to erbium-166
Major Radiation	Low intensity 80 keV gamma Beta particle, 666 keV
Form	Dysprosium chloride in 0.1 M HCl
Activity	Dy-166 - ~ 4 x 10³ Ci/g Ho-166 - carrier free
Radiopurity	> 99%
PRODUCTION
Source	Double neutron capture on enriched dysprosium-164 oxide
Processing	Dysprosium oxide target dissolved in HCl and HNO₃ mixture which is evaporated to dryness and residue taken up in a 0.1 M HCl
DISTRIBUTION
Shipment	Glass bottle
Availability	6-8 weeks advance order
Unit of Sale	0.5 - 1.0 Ci lot
Contact	Oak Ridge National Laboratory National Isotope Data Center Call: (865) 574-6984 Fax: (865) 574-6986 email: isotopes@ornl.gov