Evaluation of ⁹⁹Mo and ^99𝑚Tc Productions Based on a High-Performance Cyclotron

Table 2

The integral production yields (normalized per incident proton) estimated on 100Mo-enriched sample thicknesses both for ⁹⁹Mo and 99𝑚Tc productions. Additional production quality parameters for 99𝑚Tc are listed as well.

Proton energy	Target for; 99Mo (mm)	Target for; 99𝑚Tc (mm)	99Mo/p (adu)	99𝑚Tc/p (adu)	99𝑚Tc/99𝑚+𝑔Tc; yield ratio	99𝑚Tc/all Tc; yield ratio
70 MeV	Optimized 5.93	/	5.52⋅10^−3	/	/	/
	Thick 6.74	/	5.67⋅10^−3	/	/	/
40 MeV	Optimized 1.82	/	1.66⋅10^−3	/	/	/
	Thick 2.47	/	1.72⋅10^−3	/	/	/
25 MeV	Optimized 0.66	0.94	2.75⋅10^−4	6.70⋅10^−4	0.187	0.117
	Thick 1.00	1.04	2.78⋅10^−4	7.03⋅10^−4	0.191	0.115
20 MeV	Optimized 0.46	0.57	5.83⋅10^−5	5.65⋅10^−4	0.198	0.170
	Thick 0.63	0.65	5.83⋅10^−5	5.97⋅10^−4	0.203	0.161
15 MeV	Optimized 0.14	0.26	1.95⋅10^−6	2.84⋅10^−4	0.235	0.211
	Thick 0.33	0.35	1.99⋅10^−6	3.23⋅10^−4	0.244	0.185