Radiometals from liquid targets: 94mTc production using a standard water target on a 13 MeV cyclotron

Cornelia Hoehr; Tom Morley; Ken Buckley; Michael Trinczek; Victoire Hanemaayer; Paul Schaffer; Thomas Ruth; François Bénard

doi:10.1016/j.apradiso.2012.06.004

Radiometals from liquid targets: 94mTc production using a standard water target on a 13 MeV cyclotron

Appl Radiat Isot. 2012 Oct;70(10):2308-12. doi: 10.1016/j.apradiso.2012.06.004. Epub 2012 Jun 28.

Authors

Cornelia Hoehr¹, Tom Morley, Ken Buckley, Michael Trinczek, Victoire Hanemaayer, Paul Schaffer, Thomas Ruth, François Bénard

Affiliation

¹ TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, Canada. choehr@triumf.ca

PMID: 22871432
DOI: 10.1016/j.apradiso.2012.06.004

Abstract

Solutions containing a high concentration (0.325-0.995 g/ml) of natural-abundance ammonium heptamolybdate tetrahydrate ((NH(4))(6)Mo(7)O(24))·4H(2)O were irradiated at 13 MeV on a proton-beam cyclotron using a standard liquid target. (94m)Tc was produced via the (94)Mo(p,n)(94m)Tc reaction with measured yields of 110±20 MBq for the highest concentrated solution using 5 μA proton beams for 60 min. Saturation yields of up to 40±6 MBq/μA were achieved. Pertechnetate was isolated from the target mixture with 70.9±0.7% efficiency using a solid-phase extraction resin.