Beryllium-7

Berylliosis studies

Magnesium-28

Magnesium tracer

Scandium-47

Radioimmunotherapy

Vanadium-48

Nutrition and environmental studies

Iron-52

Iron tracer, positron emitter

Iron-55

X-ray fluorescence source

Cobalt-57

Calibration of imaging instruments

Copper-61

Positron emitter for studies requiring longer time periods

Copper-64

Positron emitter for studies requiring longer time periods; radioimmunotherapy

Copper-67

Radioimmunotherapy

Zinc-62

Parent in the generator system for producing the positron-emitting ⁶²Cu

Germanium-68

Parent in the generator system for producing the positron-emitting ⁶⁸Ga; required in calibrating PET tomographs, potential antibody label

Arsenic-74

A positron-emitting chemical analog of phosphorus

Bromine-77

Radioimmunotherapy

Bromine-80m

Radioimmunotherapy

Strontium-82

Parent in generator system for producing the positron-emitting ⁸²Rb, a potassium analog

Yttrium-88

Radioimmunotherapy

Zirconium-89

Radioimmunotheraphy, positron emitter

Ruthenium-97

Hepatobiliary function; tumor and inflammation localization

Cadmium-109

To analyze metal alloys for checking stock, scrap sorting

Indium-111

Radioimmunotherapy

Iodine-123

SPECT brain-imaging agent

Iodine-124

Radioimmunotherapy; positron emitter

Xenon-122

Parent in generator system for producing the positron-emitting ¹²²I

Xenon-127

Used in lung ventilation studies

Barium-128

Parent in generator system for producing the positron-emitting ¹²⁸Cs, a potassium analog

Cerium-139

Gamma-ray calibration source

Tantalum-179

X-ray fluorescence source (substitute for the alpha-emitter ²⁴¹Au which is used in cardiac studies)

Tungsten-178

Parent in generator system for producing ¹⁷⁸Ta, short-lived scanning agent

Mercury-195m

Parent in the generator system for producing ^195mAu which is used in cardiac blood pool studies

Thallium-201

Cardiac imaging agent

Bismuth-205

Bismuth biological distribution

Bismuth-206

Bismuth biological distribution