Science and Technology of Nuclear Installations / 2013 / Article / Tab 4

Research Article

Evaluation of and Productions Based on a High-Performance Cyclotron

Table 4

The Tc production yields estimated at EOB for different irradiation times at 15 and 20 MeV proton beams on 99.05 Mo-enriched metallic molybdenum and optimized target configuration. 500  A proton current and 500 W/cm2 mean areal power density are considered on target. A series of production quality parameters are calculated and listed (see body text).

Tc production = 15 MeV
Beam power on target (kW)7.5
Beam power deposited inside Mo sample (kW)1.41

Irradiation time 1 h 2 h 3 h 6 h

Integral yield (mCi/ A) 5.32 10.05 14.28 24.38
In-target activity (Ci) 2.66 5.03 7.14 12.2
Specific activity (Ci/g)
Tc/Total activity 0.9877 0.9853 0.9848 0.9861
Tc/Total activity 0.1809 0.2929 0.3693 0.4984
Tc/ Tc 0.2224 0.2103 0.1990 0.1699
Isotopic purity (IP) 0.2200 0.2081 0.1970 0.1682
Radionuclidic purity (RNP) 0.1831 0.2973 0.3750 0.5055

Tc production = 20 MeV
Beam power on target (kW)10.0
Beam power deposited inside Mo sample (kW)3.95

Irradiation time 1 h 2 h 3 h 6 h

Integral yield (mCi/ A) 10.35 19.58 27.81 47.56
In-target activity (Ci) 5.17 9.79 13.90 23.78
Specific Activity (Ci/g)
Tc/Total activity 0.9573 0.9488 0.9468 0.9491
Tc/Total activity 0.20060.31620.39260.5190
Tc/ Tc 0.1862 0.1760 0.1665 0.1420
Isotopic purity (IP) 0.1698 0.1606 0.1520 0.1297
Radionuclidic purity (RNP) 0.2095 0.3333 0.4147 0.5468

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