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Table 2 Properties of prompt gamma positron emission radioisotopes. Only the positrons and prompt gammas with the two highest branching ratios are listed. Data from the National Institute of Standards and Technology [14], Laboratoire National Henri Becquerel [15], and Brookhaven National Laboratory [16]

From: Physics of pure and non-pure positron emitters for PET: a review and a discussion

Isotope Half-life Branching (β+) in % β+ E max (MeV) Branching (γ) in % γ E (PG) (MeV)
68Ga 67.8 min 87.7, 1.2 1.899, 0.821 3.2 1.077
76Br 16.2 h 25.8, 6.3 3.382, 0.871 74.0, 15.9 0.559, 0.657
82Rb 1.3 min 81.8, 13.1 3.378, 2.601 15.1 0.777
86Y 14.7 h 11.9, 5.6 1.221, 1.545 82.5, 32.6 1.077, 0.627
124I 100.2 h 11.7, 10.7 1.535, 2.138 62.9, 11.2 0.602, 1.691