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Optimizing Sensor Arrays for Detecting Dirty Daniel Obenshain

Summary: Optimizing Sensor Arrays for Detecting Dirty
Daniel Obenshain
September 26, 2008
1 Abstract
Professor Ryan McLean and others at Caltech have developed a new, cheaper
radiation sensor using CdZnTe materials. Professor K. Mani Chandy and the
Infospheres research group have developed algorithms for aggregating the data
collected by many of these sensors working in concert. This paper considers
the optimal placement for such sensors. This paper concludes that stationary
sensors are far inferior to mobile sensors.
2 Background
Professor Ryan McLean at Caltech has sucessfully developed inexpensive ra-
diation detectors that are less accurate than existing high-quality expensive
detectors[1] . Said detectors rely on a 20 mm x 20 mm x 5 mm slab of CdZnTe
to detect gamma rays emitted by the radioactive materials in the dirty bomb
being transported by the terrorist[1].
3 Spherical sensors
As a base case, Concetta Pilotto examined the implications of using sensors that
are perfectly spherical. This makes the calculations easier, as the cross sectional


Source: Amir, Yair - Department of Computer Science, Johns Hopkins University


Collections: Computer Technologies and Information Sciences