Table 2 Comparison of activities and reaction rates of ⁹⁹Mo in various Mo metal samples after one production day of ¹⁸F in a low-energy cyclotron with neutrons generated through the ¹⁸O(p, n)¹⁸F reaction

Mass

10.29075

10.2612

2.94533

Irradiation Time (s)

15540

16500

16500

Time after EOB (s)

98753

37736

39210

Count Time (s)

600

600

600

Total Counts ⁹⁹Mo

391785

333068

197469

Total ¹⁸F Produced (Ci)

19.189

19.649

19.649

⁹⁹Mo Activity (Bq)

1.28E+05

9.00E+04

5.16E+04

⁹⁹Mo Activity (Ci)

3.45E–06

2.43E–06

1.40E–06

⁹⁹Mo Specific Activity (Ci/g)

3.35E–07

2.37E–07

4.74E–07

Spec. Act. ⁹⁹Mo (Ci/g)/¹⁸F (Ci)

1.75E–08

1.21E–08

2.41E–08

Ratio ⁹⁹Mo (Ci)/¹⁸F (Ci)

1.80E–07

1.24E–07

7.10E–08

Reaction Rate of ⁹⁹Mo (Bq)

2.87E+06

1.91E+06

1.10E+06

Reaction Rate of ⁹⁹Mo (Ci)

7.77E–05

5.17E–05

3.93E–05

Reaction Rate of ⁹⁹Mo (Ci/g)

7.55E–06

5.04E–06

1.34E–05