Radioactive ion
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United States of America Patent
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Issued Date -
Jun 2, 2005
app pub date -
Jan 14, 2005
filing date -
Dec 12, 2001
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Abandoned
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Abstract
The present invention relates to a method for implantation of Xe isotopes in a matrix for production of .sup.125I sources that do not shed radioactive atoms. .sup.125Xe implanted at 12 kV in steel, titanium and gold does not evolve after more than 10 half-lives (380 h) and .sup.125I from the decay of implanted .sup.125Xe is equally stable for 2 half-lives (120 d). The matrix having radioxenon implanted is useful as a medical device, for instance as a 'seed' for radiotherapeutic uses or in production of stents. Methods of treatment utilizing such devices are also encompassed by the present invention.
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