Transmutable radiotherapy device
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United States of America Patent
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Sep 25, 2001
Grant Date -
N/A
app pub date -
Nov 6, 1998
filing date -
Mar 24, 1998
priority date (Note) -
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Abstract
A general purpose radiotherapy device can be fabricated to net or near-net shape and then made radioactive in a single activation step. The device is made at least partially of a transmutable material which is transformable to a radioisotope-containing material upon activation by an accelerated beam of charged particles, such as protons, deuterons or alpha particles. The transmutable material is preferably rhodium and the radioisotope preferably comprises palladium-103. The beam energy and device dimensions are selected so that energy from the beam in the range which is most likely to produce a desired transmutation reaction in the device is absorbed, while at least a portion of the energy which is insufficient to effect the desired transmutation reaction is not retained in the device.
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