Through upgrades and enhancements, which are now standard on current PETtrace 800 cyclotrons, a GE PETtrace cyclotron installed in 2002 has demonstrated reliable routine production at total target beam currents of 180 μA without detriment to saturation and yields. Routine production at 200 μA has been achieved and its evaluation is continuing. Self-shielded target using W/Cu alloy for the target body afforded a reduction in dose rate from the Havar foils by a factor of ∼ 8-10, reducing dose from the targets and need for removing targets during maintenance. The main activation product in the shield is (T1/2 24 h). The ((T1/2 5.3 y) activation is about 250 times less at 24 h post EOB and is not considered a major issue despite its long half-life.
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