Metal technetium target and target chemistry for the production of 97Ru via the 99Tc(p,3n) 97Ru reaction

✍ Scribed by N.G. Zaitseva; V.I. Stegailov; V.A. Khalkin; N.G. Shakun; P.T. Shishlyannikov; K.G. Bukov

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 564 KB
• Volume: 47
• Category: Article
• ISSN: 0969-8043
• DOI: 10.1016/0969-8043(95)00272-3

✦ Synopsis

Radionuclidic pure 97Ru (tl/2 = 2.9 days) was produced by a (p,3n) reaction on 99Tc, using the internal radiation facility of the JINR phasotron. The conditions of the irradiation, target construction, thick-target yield and radiochemical separation of 97Ru from Tc target material were searched.

The 97Ru yield really obtained during 1 h irradiation of Tempt (2.8-3.0 g/era2; 1.0-1.2 g) with a proton beam of energy 50 MeV and intensity 8/~A was equal to 45-50 mCi/h. The radiochemical separation of ultramicroamounts of ruthenium and macroamounts of technetium is based on Rue4 distillation from HNO3 or H2SO 4 solutions at 90°C with air flow. The chemical yield of 97Ru is not less than 95%, the decontamination factor is more 104, the duration of chemical operation is 6-7 h.