Table 1.

Standardized geometries for Ac-225/Fr-221 measurements.

Radio-(i)TLC-scanner	Strips (ITLC-SG, 0.5 × 10 cm), activity spotted at RF 0.1, sealed with parafilm after separation was performed
HPGe-detector	ITLC strip cut at RF 0.7, top and bottom measured in borosilicate glass tube (Pyrex 12 × 7.5 mm) in 10 mL reaction tube (8.5 mL, 75 × 15.7 mm)
Gamma counter	Activity concentration of <10 kBq, (5 µL radiolabeling solution) in Milliq water (total volume of 1 mL)
Dose calibrator	8–12 MBq, 3–8 mL final solution in 10 mL syringe (Luer Lock) with stopper