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Assessment of internal doses in emergency situations

The need for quantifying the uptake of radioiodine (131I) in thyroids in emergency situations has repeatedly been demonstrated after nuclear accidents. In addition to nuclear accidents, malevolent use of radiation and radioactive materials has become increasingly important to consider. The aim of a measurement is to identify people who may have inhaled or ingested amounts of 131I that imply a need for more extensive measurements and subsequent medical assessment. Prompt screening of larger groups enables both the necessary early stage contamination control and the subsequent estimation of radiation doses. With proper calibration, many handheld instruments can be used for control measurements of internal contamination with 131I. Stationary gamma spectrometers specialized for thyroid monitoring are obviously useful as are other spectrometers that can be fitted to this measurement situation (e.g. mobile germanium detectors). Gamma cameras available in hospitals may also be an important resource in the context of 131I measurements. These issues are further discussed in NKS-298 and NKS-324.

A similar project was previously conducted concerning whole-body counting facilities and are further discussed in NKS-238 and in NKS-258.

Page Manager: Johan Spetz|Last update: 6/25/2015

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