Abstract
The positron emitting Na22 of 2.6 year half-life has been prepared in a nuclear reactor by the double reaction Li6(n, α)H3, Ne20(H3, n)Na22. The over-all yield was 2.3 × 10−7 atoms of Na22 per atom of tritium formed. Eleven grams of lithium as aluminum alloy turnings in a neon atmosphere at 200 p.s.i. was irradiated for 175 days in a neutron flux of about 4 × 1012 n./cm.2/sec. About 380 μc. of Na22 was obtained in a sodium extract having a specific activity of 10 mc. Na22/gm. of Na23. A specific activity in the curie/gm. level would be expected from a longer irradiation in the highest flux (6 × 1013 n./cm.2/sec.) in the NRX reactor. The separation and purification of the sodium proved practicable by paper chromatography or ion exchange; the analyses for trace Li and Na23 were carried out by radioactivation.
Publisher
Canadian Science Publishing
Subject
Organic Chemistry,General Chemistry,Catalysis
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
1. Production of 48V in a nuclear reactor via secondary tritons;Radiochimica Acta;2009-01
2. The thermal neutron capture cross-section and resonance capture integral of 22Na;Journal of Inorganic and Nuclear Chemistry;1967-03
3. THE B10(α,n)N13 AND B10(t,2n)C11 REACTIONS IN A NUCLEAR REACTOR;Canadian Journal of Physics;1961-11-01
4. Die einzelnen Isotope und Besonderheiten ihrer Bestimmung;Radioactive Isotopes in Physiology Diagnostics and Therapy / Künstliche Radioaktive Isotope in Physiologie Diagnostik und Therapie;1961
5. Die einzelnen Isotope und Besonderheiten ihrer Bestimmung;Künstliche Radioaktive Isotope in Physiologie Diagnostik und Therapie/Radioactive Isotopes in Physiology Diagnostics and Therapy;1961