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This work centers around a state of the art gamma and neutron radiation detector, which is able to display radiation information about its surrounding at every second. Information about the count
 

Summary: ABSTRACT
This work centers around a state of the art gamma and neutron radiation detector, which is able to
display radiation information about its surrounding at every second. Information about the count
level is displayed along with the energy range of the detected radiation. Currently, similar sensors
are only capable of passive radiation detection and function in stationary positions on the sides of
highways, the entrances to buildings, and at major intersections.
The sensor has design considerations which allow it to move about and be more aggressive in its
search. Its small size and low profile design allow it to be mounted on a robotic platform and
search in small spaces such as underneath a car. Ultimately it would be able to autonomously
localize an unknown number of dangerous radioactive sources, allowing workers to stay at a safe
distance.
The sensor has been characterized using exempt Cs-137 and Co-60 gamma sources. A
thorough profile was done of the measurements made by the sensor at varying distances with
different combinations of radioisotopes present. Based on the findings, an algorithm was developed
to scan an area similar to that of the wheelbase of a car and record the radiation levels. These
measurements are used to localize from one to three radioactive sources.
1. INTRODUCTION
Few papers have been published concerning the autonomous detection and localization of
radioactive sources; however a large number of papers are available that address the localization
of isotropic sources in other contexts. The most common application involves the localization of

  

Source: Abidi, Mongi A. - Department of Electrical and Computer Engineering, University of Tennessee

 

Collections: Computer Technologies and Information Sciences