Activation cross sections of alpha-particle induced nuclear reactions on hafnium and deuteron induced nuclear reaction on tantalum: Production of W-178/Ta-178m generator

作者：Tarkanyi F; Takacs S; Ditroi F^*; Hermanne A; Ignatyuk A V; Uddin M S

来源：Applied Radiation and Isotopes, 2014, 91: 114-125.

DOI：10.1016/j.apradiso.2014.05.016

• Hafnium and tantalum target
• alpha-Irradiation
• Deuteron irradiation
• Hafnium, tantalum and tungsten radioisotopes
• Physical yield
• W-178 production

In the frame of a systematic study of charged particle production routes of medically relevant radionuclei, the excitation function for indirect production of Ta-178m through Hf-nat(alpha,xn)W-178-Ta-178m nuclear reaction was measured for the first time up to 40 MeV. In parallel, the side reactions Hf-nat(alpha,x)W-179,W-177,W-176,W-175, Ta-183,Ta-182,Ta-178g,Ta-177,Ta-176,Ta-175, Hf-179m,Hf-177m,Hf-175 were also assessed. Stacked foil irradiation technique and gamma-ray spectrometry were used. New experimental cross section data for the Ta-nat(d,xn)W-178 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 (He-3,x)) production routes for W-178.

• 出版日期2014-9