Dosimetry for californium-252(252Cf) neutron-emitting brachytherapy sources and encapsulation, storage, and clinical delivery thereof
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United States of America Patent
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Apr 22, 2003
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N/A
app pub date -
Aug 17, 2000
filing date -
Aug 19, 1999
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Expired
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Abstract
The present invention discloses a methodology for the characterization and determination of mixed-field dosimetry for .sup.252 Cf Applicator Tube (AT)-type medical sources, utilizing ionization chambers, GM counters, and Monte Carlo methods. Unlike the previous methodologies, the present invention discloses a specification of dose to muscle, rather than dose to water, for clinical dosimetry of .sup.252 Cf medical sources. A dosimetry protocol, similar to that utilized for ICRU-45, with parameters determined specifically for .sup.252 Cf brachytherapy is disclosed. Neutron isodose distributions and data necessary for clinical implementation of .sup.252 Cf AT sources are also disclosed herein. Additionally, novel methods for the encapsulation, storage, and delivery/implantation of .sup.252 Cf radionuclide sources are disclosed.
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