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Journal Articles

Estimated isotopic compositions of Yb in enriched $^{176}$ Yb for producing $^{177}$ Lu with high radionuclide purity by $^{176}$ Yb() $^{177}$ Lu

Nagai, Yasuki*; Kawabata, Masako*; Hashimoto, Shintaro; Tsukada, Kazuaki; Hashimoto, Kazuyuki*; Motoishi, Shoji*; Saeki, Hideya*; Motomura, Arata*; Minato, Futoshi; Ito, Masatoshi*

Journal of the Physical Society of Japan, 91(4), p.044201_1 - 044201_10, 2022/04

https://doi.org/10.7566/JPSJ.91.044201

Times Cited Count：2 Percentile：44.06(Physics, Multidisciplinary)

Recently, $^{177}$ Lu is considered as one of the most important medical RIs for treating neuroendocrine tumors. A plan to produce $^{177}$ Lu with high purity by using enriched $^{176}$ Yb samples with irradiation of deuteron beams in accelerators has been discussed. However, since the other Yb isotopes contained in the Yb sample interacts with deuterons, Lu isotopes other than $^{177}$ Lu are produced as impurities. Since the purity of $^{177}$ Lu is important for medical use, a method to evaluate the impurity of Lu has been required. In this study, we proposed a new method to estimate production yields of each Lu isotopes in Yb samples with arbitrary isotopic compositions by using excitation functions of Yb()Lu reactions and the particle transport calculation code PHITS. The method plays an important role in discussing the isotopic composition of enriched samples to produce high-purity $^{177}$ Lu using accelerators.

Journal Articles

Excitation functions of rhenium isotopes on the $^{nat.}$ W(d,xn) reactions and production of no-carrier-added $^{186}$ Re

Ishioka, Noriko; Watanabe, Satoshi; Osa, Akihiko; Koizumi, Mitsuo; Matsuoka, Hiromitsu; Sekine, Toshiaki

Journal of Nuclear Science and Technology, 39(Suppl.2), p.1334 - 1337, 2002/08

http://wwwndc.jaea.go.jp/nd2001/proc/pdf/2_1334.pdf

Experimental cross sections for the reactions $^{186}$ W(d,2n) $^{186}$ Re, $^{nat.}$ W(d,xn) $^{181-184}$ Re and $^{186}$ W(d,p) $^{187}$ W are measured up to 34 MeV using the stacked foil method. The values obtained are compared with cross sections calculated using the ALICE code. The experimental and theoretical excitation functions are in reasonable agreement except for the $^{186}$ W(d,p) $^{187}$ W reaction.