title: Radiometals from liquid targets: 94mTc production using a standard water target on a 13 MeV cyclotron.
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.
authors.affiliation: TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, Canada. choehr@triumf.ca
authors.forename: Cornelia
authors.initials: C
authors.lastname: Hoehr
authors.forename: Tom
authors.initials: T
authors.lastname: Morley
authors.forename: Ken
authors.initials: K
authors.lastname: Buckley
authors.forename: Michael
authors.initials: M
authors.lastname: Trinczek
authors.forename: Victoire
authors.initials: V
authors.lastname: Hanemaayer
authors.forename: Paul
authors.initials: P
authors.lastname: Schaffer
authors.forename: Thomas
authors.initials: T
authors.lastname: Ruth
authors.forename: François
authors.initials: F
authors.lastname: Bénard