title: Activation cross sections of α-particle induced nuclear reactions on hafnium and deuteron induced nuclear reaction on tantalum: production of ¹⁷⁸W/(178m)Ta generator.
abstract: In the frame of a systematic study of charged particle production routes of medically relevant radionuclei, the excitation function for indirect production of (178m)Ta through (nat)Hf(α,xn)(178)W-(178m)Ta nuclear reaction was measured for the first time up to 40 MeV. In parallel, the side reactions (nat)Hf(α,x)(179,177,176,175)W, (183,182,178g,177,176,175)Ta, (179m,177m,175)Hf were also assessed. Stacked foil irradiation technique and γ-ray spectrometry were used. New experimental cross section data for the (nat)Ta(d,xn)(178)W reaction are also reported up to 40 MeV. The measured excitation functions are compared with the results of the ALICE-IPPE, and EMPIRE nuclear reaction model codes and with the TALYS 1.4 based data in the TENDL-2013 library. The thick target yields were deduced and compared with yields of other charged particle ((p,4n), (d,5n) and ((3)He,x)) production routes for (178)W.
authors.affiliation: Institute for Nuclear Research of the Hungarian Academy of Sciences, H4026 Debrecen, Hungary.
authors.forename: F
authors.initials: F
authors.lastname: Tárkányi
authors.affiliation: Institute for Nuclear Research of the Hungarian Academy of Sciences, H4026 Debrecen, Hungary.
authors.forename: S
authors.initials: S
authors.lastname: Takács
authors.affiliation: Institute for Nuclear Research of the Hungarian Academy of Sciences, H4026 Debrecen, Hungary. Electronic address: ditroi@atomki.hu.
authors.forename: F
authors.initials: F
authors.lastname: Ditrói
authors.affiliation: Cyclotron Laboratory, Vrije Universiteit Brussel, B1050 Brussels, Belgium.
authors.forename: A
authors.initials: A
authors.lastname: Hermanne
authors.affiliation: Institute of Physics and Power Engineering, 249020 Obninsk, Russian Federation.
authors.forename: A V
authors.initials: AV
authors.lastname: Ignatyuk
authors.affiliation: Institute of Nuclear Science and Technology, Atomic Energy Research Establishment, GPO Box No. 3787, Savar, Dhaka 1000, Bangladesh.
authors.forename: M S
authors.initials: MS
authors.lastname: Uddin
keywords: (178)W production; Deuteron irradiation; Hafnium and tantalum target; Hafnium, tantalum and tungsten radioisotopes; Physical yield; α-Irradiation