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. 2012 May 25;39(6):3435–3444. doi: 10.1118/1.4718874

TABLE I.

The measured photopeak mean energies and energy resolutions from 67Ga, 99 mTc, 111In, and 201Tl.

  Energy (keV) FWHM
Radionuclide True Measure (keV) (%)
67Ga 300 299 25.5 8.5
111In 246 247 22.4 9.1
67Ga 185 184 17.2 9.3
111In 171 172 17.9 10.4
99mTc 140 141 10.4 7.4
67Ga 93 93 11.4 12.2
201Tl 71 71 7.7 10.9