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Report No.
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$$^{99}$$Mo production via $$^{100}$$Mo(n,2n)$$^{99}$$Mo using accelerator neutrons

Nagai, Yasuki

$$^{rm 99m}$$Tc, the daughter nuclide of $$^{99}$$Mo, is the most common radioisotope used in diagnosis. About 95% of $$^{99}$$Mo has been produced by the fission reaction of highly enriched $$^{235}$$U in research reactors in the world. We proposed a new route to produce $$^{99}$$Mo via $$^{100}$$Mo(n,2n)$$^{99}$$Mo using neutrons from an accelerator. We have performed all important steps necessary to obtain high-quality $$^{rm 99m}$$Tc using $$^{99}$$Mo, which was produced using fast neutrons from $$^{3}$$He (d,n)$$^{4}$$He. We showed that other medical isotopes, such as $$^{90}$$Y, $$^{64}$$Cu, and $$^{67}$$Cu, are significantly produced using accelerator neutrons.

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