A Radiological Monitoring Network for Homeland Security
C. G. Sanderson
The Environmental Measurements Laboratory (EML) has established and maintained a worldwide network of surface air sampling sites for radiological measurements for over 40 years and is the "World Calibration Center for Radioactivity" responsible for measuring radionuclides at the World Meteorological Organization's Global Atmosphere Watch sites around the world. EML has constructed a prototype monitoring platform and populated it with radiation sensors and aerosol collectors as a first node of a dense national network of radiation monitoring systems that can provide continuous real-time reporting of dose exposure background before and immediately following a domestic nuclear event (DNE). In addition to the Department of Homeland Security (DHS), other federal, state, and local emergency management agencies responsible for deployment of first responders would benefit from the real-time radiation measurements provided by this network. The platform contains a high volume air particulate sampler, a low volume two stage impactor, a pressurized ionization chamber, a gamma-ray sensor for continuous atmospheric monitoring with software to discriminate between natural and anthropogenic radiation sources, metrology sensors, thermoluminescent detectors for total integrated exposure, and a communication system. The platform and infrastructure will be able to support real-time biological and chemical sensors when they become available. The radiation data being produced by the platform's sensors are being reported on our website in real-time.
This abstract was presented at the 36th Annual Midyear Meeting, "Radiation Safety Aspects of Homeland Security and Emergency Response", Late Submissions Session, 1/26/2003 - 1/29/2003, held in San Antonio, TX.