Cyclotron produced ⁴⁴gSc from natural calcium

G W Severin; J W Engle; H F Valdovinos; T E Barnhart; R J Nickles

doi:10.1016/j.apradiso.2012.04.030

Cyclotron produced ⁴⁴gSc from natural calcium

Appl Radiat Isot. 2012 Aug;70(8):1526-30. doi: 10.1016/j.apradiso.2012.04.030. Epub 2012 May 24.

Authors

G W Severin¹, J W Engle, H F Valdovinos, T E Barnhart, R J Nickles

Affiliation

¹ Medical Physics Department, University of Wisconsin-Madison, Madison, WI 53706, United States. gwseverin@gmail.com

Abstract

(44g)Sc was produced by 16MeV proton irradiation of unenriched calcium metal with radionuclidic purity greater than 95%. The thick target yield at saturation for (44g)Sc was 213 MBq/μA, dwarfing the yields of contaminants (43)Sc,(44 m)Sc, (47)Sc and (48)Sc for practical bombardment times of 1-2h. Scandium was isolated from the dissolved calcium target by filtration, and reconstituted in small volumes of dilute HCl. Reactions with the chelate 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) indicated a reactivity of 54 ± 14 Gbq/μmol at end-of-bombardment.

Publication types

Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't

MeSH terms

Calcium / chemistry*
Cyclotrons*

Substances

Calcium

Abstract

Publication types

MeSH terms

Substances

Grants and funding