Research Article

Evaluation of and Productions Based on a High-Performance Cyclotron

Table 3

The Mo production yields expected at EOB for different irradiation conditions, based on 99.05 Mo-enriched metallic molybdenum (thick and optimized target configurations), 500  A proton current, and 500 W/cm2 mean areal power density on target.

Mo production = 70 MeV = 40 MeV
Beam power on target (kW)3520
Target configuration Thick Optimized Thick Optimized
Beam power deposited in target (kW) 31.1 24.1 16.1 10.1

Irradiation time: 12 h
Integral yield (mCi/ A) 119.5 116.5 34.7 34.5
In-target activity (Ci) 59.7 58.3 17.4 17.3
Specific activity (mCi/g) 119.8 136.5 159.5 205.2

Irradiation time: 24 h
Integral yield (mCi/ A) 224.8 219.2 65.4 65.1
In-target activity (Ci) 112.4 109.6 32.7 32.6
Specific activity (mCi/g) 225.4 256.9 300.0 386.0

Saturation: 21 d
Integral yield (mCi/ A) 1003.3 978.3 291.9 290.5
In-target activity (Ci) 501.6 489.2 145.9 145.3
Specific activity (mCi/g) 1011.4 1152.3 1345.4 1731.1