Student Work

Air Kerma Strength Measurement of a Cs-137 Source Using a Seven-Distance Ionization Technique

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Brachytherapy describes a process where radioactive sources are inserted directly into the target area of a patient to treat disease. Before they can be used for treatment, brachytherapy sources must be calibrated such that medical physicists know their exact air kerma strength - a quantity given by manufacturers as a standard. Each individual source must be measured before use. Therefore, medical physicists must have an efficient technique for measuring air kerma strength. The goal of this project was to build a system that uses a "seven-distance" ionization measurement technique to measure the air kerma strength of a cesium-137 source. Results obtained using this method were also compared to those obtained using a gamma spectroscopy technique.

  • This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.
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Identifier
  • E-project-042313-090559
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Year
  • 2013
Date created
  • 2013-04-23
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Last modified
  • 2021-01-07

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