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A portable survey meter method for locating and quantifying removable contamination after 131I therapies
M Selikson1, M Felice, R Forrest
1Radiation Safety Office, University of Pennsylvania, Phialdelphia 19104, USA.
Health Physics
|February 1, 1996
Summary
A sensitive survey meter effectively identifies and quantifies radioactive iodine-131 (131I) surface contamination, improving room decontamination and reoccupancy compared to traditional wipe tests.
Area of Science:
- Nuclear medicine
- Radiation safety
- Medical physics
Background:
- Hospitals frequently manage radioactive iodine-131 (131I) surface contamination after patient therapies.
- Regulatory guidelines often mandate wipe testing for removable contamination.
Purpose of the Study:
- To assess the efficacy of a sensitive portable survey meter for detecting and quantifying 131I surface contamination.
- To compare the survey meter method against the standard wipe testing procedure.
Main Methods:
- Laboratory and clinical evaluations of both wipe testing and portable survey meter detection systems.
- Comparative analysis of sensitivity, quantification accuracy, and practical application.
Main Results:
- The portable survey meter demonstrated superior performance in both locating and quantifying removable 131I contamination.
- The survey meter method offers a more efficient approach to room decontamination.
Conclusions:
- A sensitive portable survey meter is a suitable and advantageous alternative to wipe testing for 131I surface contamination.
- Utilizing survey meters facilitates prompt room cleaning and reoccupancy.