SEPARATION OF MULTITRACERS FROM HEAVY-ION-IRRADIATED TARGETS BY MELTING UNDER REDUCED PRESSURE

Masako IWAMOTO; Yoshio KOBAYASHI; Shao Yong CHEN; Yoshitaka OHKUBO; Shizuko AMBE; Minoru YANOKURA; Amar Nath GARG; Fumitoshi AMBE

doi:10.2116/analsci.7.Supple_313

Masako IWAMOTO, Yoshio KOBAYASHI, Shao Yong CHEN, Yoshitaka OHKUBO, Shizuko AMBE, Minoru YANOKURA, Amar Nath GARG, Fumitoshi AMBE

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Keywords: separation, radioactive nuclide, multitracer, heavy-ion reaction

JOURNAL FREE ACCESS

1991 Volume 7 Issue Supple Pages 313-316

DOI https://doi.org/10.2116/analsci.7.Supple_313

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Abstract

Au, Ag, and Cu foils were irradiated with high-energy heavy ions accelerated with the RIKEN Ring Cyclotron. The foils were melted in a quartz tube at a temperature slightly above the melting point of each foil under reduced pressure. Radioactive nuclides evaporated from the foil and deposited on the cold finger or the cold part of the tube were successively washed with warm water (70°C) and hydrochloric acid solutions. The γ-ray spectra of the foils and solutions showed that a number of radioactive nuclides were separated from the target to yield carrier- and salt-free multitracer solutions.

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