@article{oai:repo.qst.go.jp:00048512, author = {Hayakawa, Takehito and Hatsukawa, Yuichi and Tanimori, Toru and 早川 岳人 and 初川 雄一}, issue = {1}, journal = {Heliyon}, month = {Jan}, note = {We studied 95gTc and 96gTc as alternatives to the medical radioisotope 99mTc. 96gTc (95gTc) can be produced by (p, n) reactions on an enriched 96Mo (95Mo) target with a proton beam provided by a compact accelerator such as a medical cyclotron that generate radioisotopes for positron emission tomography (PET). The γ-rays are measured with an electron-tracking Compton camera (ETCC). We calculated the relative intensities of the γ-rays from 95gTc and 96gTc. The calculated γ-ray intensity of a 96gTc (95gTc) nucleus is as high as 63% (70%) of that of a 99mTc nucleus. We also calculated the patient radiation doses of 95gTc and 96gTc, which were larger than that of 99mTc by a factor of 2–3 based on the applied assumptions. A medical PET cyclotron which can provide proton beams with energies of 11–12 MeV and a current of 100 μA can produce 12 GBq (39 GBq) of 96gTc (95gTc) for operation time of 8 h, which can be used for 240 (200) diagnostic scans.}, pages = {e00497-1--e00497-20}, title = {Proposal of 95gTc and 96gTc as alternatives to medical radioisotope 99mTc}, volume = {4}, year = {2018} }