Related Experiment Videos
Radiation dose equivalent to stowaways in vehicles
Siraj M Khan1, Paul E Nicholas, Michael S Terpilak
1Bureau of Customs and Border Protection, 1300 Pennsylvania Avenue, NW, Suite 1575, Washington, DC 20229, USA. siraj.m.khan@dhs.gov
Health Physics
|April 15, 2004
Summary
The U.S. Bureau of Customs and Border Protection uses non-intrusive inspection (NII) systems for border security. Studies show radiation doses to stowaways are negligibly small, posing no health hazard.
Area of Science:
- Border Security Technology
- Radiation Safety
- Public Health
Background:
- Non-intrusive inspection (NII) systems are widely used by U.S. Customs and Border Protection at ports of entry.
- These systems utilize X-rays and gamma rays to detect contraband in vehicles and containers.
- Undocumented individuals may hide in conveyances, raising concerns about radiation exposure.
Purpose of the Study:
- To assess the radiation dose equivalent received by stowaways concealed within inspected conveyances.
- To ensure compliance with acceptable radiation dose limits for individuals.
- To document the safety of NII systems for potential stowaways.
Main Methods:
- A study protocol was developed and implemented by U.S. Customs and Border Protection.
- Radiation dose levels were measured and documented for stowaways.
- Data was collected from deployed NII systems at various border locations.
Main Results:
- The radiation dose equivalent imparted to stowaways was found to be negligibly small.
- Measurements confirmed that exposure levels are well within acceptable safety limits.
- No significant health hazard was identified from NII system radiation exposure.
Conclusions:
- Deployed NII systems present a negligible radiation risk to stowaways.
- The study validates the safety of current NII technologies for border inspection.
- Radiation safety protocols are effective in protecting individuals from harmful exposure.