Method for preparing a radiopharmaceutical and radium-224 radiopharmaceutical

Abstract

26 20 25 27 96 80 10 D ec 2 02 5 A B S T R A C T 2 0 2 5 2 7 9 6 8 0 1 0 D e c 2 0 2 5 2 6 FIG. 1 FIG. 2 Thorium 232 14.1 billion years Radium 228 5.75 years Actinium 228 6.13 hours Thorium 228 1.91 years Radium 224 3.66 days α β- β- α First milking Second milking Third milking (M1) (M2) (M3) （１） （２） （３） 1 2 3 4 5 6 7 8 5 10 11 12 1 / 2 FIG. 1 Thorium 232 Radium 228 Actinium 228 6.13 hours Thorium 228 Radium 224 FIG. 2 3 7 11 1 5 5 2 6 10 4 8 12 20 25 27 96 80 10 D ec 2 02 5 F I G . 1 2 0 2 5 2 7 9 6 8 0 1 0 D e c 2 0 2 5 A c t i n i u m 2 2 8 R a d i u m 2 2 4 F I G . 2 7 5 5 2 6 1 0 4 8 1 2

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