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Proceedings Paper

Tritium-powered radiation sensor network
Author(s): Marc S. Litz; Johnny A. Russo; Dimos Katsis
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Paper Abstract

Isotope power supplies offer long-lived (100 years using 63Ni), low-power energy sources, enabling sensors or communications nodes for the lifetime of infrastructure. A tritium beta-source (12.5-year half-life) encapsulated in a phosphor-lined vial couples directly to a photovoltaic (PV) to generate a trickle current into an electrical load. An inexpensive design is described using commercial-of-the-shelf (COTS) components that generate 100 μWe for nextgeneration compact electronics/sensors. A matched radiation sensor has been built for long-duration missions utilizing microprocessor-controlled sleep modes, low-power electronic components, and a passive interrupt driven environmental wake-up. The low-power early-warning radiation detector network and isotope power source enables no-maintenance mission lifetimes.

Paper Details

Date Published: 12 May 2016
PDF: 12 pages
Proc. SPIE 9824, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVII, 982412 (12 May 2016); doi: 10.1117/12.2222177
Show Author Affiliations
Marc S. Litz, U.S. Army Research Lab. (United States)
Johnny A. Russo, U.S. Army Research Lab. (United States)
Dimos Katsis, Athena Energy Corp. (United States)

Published in SPIE Proceedings Vol. 9824:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVII
Augustus Way Fountain III, Editor(s)

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