C.M. Marianno, J.L. Erchinger, and A.D. Herring,
"Using a Specialized Radiation Portal System to Monitor Livestock Following a Radiological Incident,"
23rd Annual National Radiological Emergency Preparedness Conference, Austin, Texas, 8-11 April 2013.
Large scale contamination following a radiological incident will
have a great effect on the economy. For instance if some deposition
occurred near a single beef feed lot tens of millions of dollars'
worth of cattle would be considered contaminated until proven
otherwise. Through the National Response Framework (NRF) the United
States Department of Agriculture (USDA) has the responsibility of
supporting, screening and decontaminating poultry, wildlife,
livestock, and companion animals in a radiological emergency. Since
the USDA does not currently possess these capabilities, the
National Institute of Food and Agriculture is supporting research
on the development of a radiation portal monitoring (RPM) system
for livestock. This work occurred in 2 phases. First, 3 commercial
RPMS, designed for pedestrian and vehicle use, were tested using
cattle. The second phase, involving a custom detector array,
employed up to 6 - 2"x4"x16" sodium iodide detectors. In both cases
Cs-137 sources were placed in various locations on a steer's body
and the animal was allowed to walk through the portal. Large
passageways as well as press chutes, typically found in feed lots
were utilized for these studies. This study found that the
commercial RPMs would require hardware and software modifications
to be used for such a mission. The custom system, used in its
various configurations, was -137 in one second, record spectral
information for isotope identification and localize contamination
on the animal. This talk will discuss this work in addition to
comparing the commercial and custom systems.
Associated Project(s):Effective Contamination Detection for Livestock Following a Radiological Event