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Title: Design Optimization of Radionuclide Nano-Scale Batteries

Abstract

Radioisotopes have been used for power sources in heart pacemakers and space applications dating back to the 50's. Two key properties of radioisotope power sources are high energy density and long half-life compared to chemical batteries. The tritium battery used in heart pacemakers exceeds 500 mW-hr, and is being evaluated by the University of Florida for feasibility as a MEMS (MicroElectroMechanical Systems) power source. Conversion of radioisotope sources into electrical power within the constraints of nano-scale dimensions requires cutting-edge technologies and novel approaches. Some advances evolving in the III-V and II-IV semiconductor families have led to a broader consideration of radioisotopes rather free of radiation damage limitations. Their properties can lead to novel battery configurations designed to convert externally located emissions from a highly radioactive environment. This paper presents results for the analytical computational assisted design and modeling of semiconductor prototype nano-scale radioisotope nuclear batteries from MCNP and EGS programs. The analysis evaluated proposed designs and was used to guide the selection of appropriate geometries, material properties, and specific activities to attain power requirements for the MEMS batteries. Plans utilizing high specific activity radioisotopes were assessed in the investigation of designs employing multiple conversion cells and graded junctions with varyingmore » band gap properties. Voltage increases sought by serial combination of VOC s are proposed to overcome some of the limitations of a low power density. The power density is directly dependent on the total active areas.« less

Authors:
; ; ;
Publication Date:
Research Org.:
University of Florida, Gainesville, FL (US)
Sponsoring Org.:
none (US)
OSTI Identifier:
840305
Resource Type:
Conference
Resource Relation:
Conference: Americas Nuclear Energy Symposium (ANES 2004), Miami, FL (US), 10/03/2004--10/06/2004; Other Information: PBD: 6 Oct 2004
Country of Publication:
United States
Language:
English
Subject:
07 ISOTOPES AND RADIATION SOURCES; 29 ENERGY PLANNING, POLICY AND ECONOMY; AGE ESTIMATION; CARDIAC PACEMAKERS; DESIGN; DIMENSIONS; ENERGY DENSITY; HALF-LIFE; NUCLEAR ENERGY; OPTIMIZATION; ORGANIC COMPOUNDS; POWER DENSITY; RADIATIONS; RADIOISOTOPES; SIMULATION; TRITIUM; VOLATILE MATTER; NESDPS Office of Nuclear Energy Space and Defense Power Systems; RADIOISOTOPE; NUCLEAR BATTERY; NANO-SCALE DESIGN; MCNP; EGS; ALPHA; BETA; CALCULATIONS

Citation Formats

Schoenfeld, D.W., Tulenko, J.S., Wang, J., and Smith, B. Design Optimization of Radionuclide Nano-Scale Batteries. United States: N. p., 2004. Web.
Schoenfeld, D.W., Tulenko, J.S., Wang, J., & Smith, B. Design Optimization of Radionuclide Nano-Scale Batteries. United States.
Schoenfeld, D.W., Tulenko, J.S., Wang, J., and Smith, B. Wed . "Design Optimization of Radionuclide Nano-Scale Batteries". United States. https://www.osti.gov/servlets/purl/840305.
@article{osti_840305,
title = {Design Optimization of Radionuclide Nano-Scale Batteries},
author = {Schoenfeld, D.W. and Tulenko, J.S. and Wang, J. and Smith, B.},
abstractNote = {Radioisotopes have been used for power sources in heart pacemakers and space applications dating back to the 50's. Two key properties of radioisotope power sources are high energy density and long half-life compared to chemical batteries. The tritium battery used in heart pacemakers exceeds 500 mW-hr, and is being evaluated by the University of Florida for feasibility as a MEMS (MicroElectroMechanical Systems) power source. Conversion of radioisotope sources into electrical power within the constraints of nano-scale dimensions requires cutting-edge technologies and novel approaches. Some advances evolving in the III-V and II-IV semiconductor families have led to a broader consideration of radioisotopes rather free of radiation damage limitations. Their properties can lead to novel battery configurations designed to convert externally located emissions from a highly radioactive environment. This paper presents results for the analytical computational assisted design and modeling of semiconductor prototype nano-scale radioisotope nuclear batteries from MCNP and EGS programs. The analysis evaluated proposed designs and was used to guide the selection of appropriate geometries, material properties, and specific activities to attain power requirements for the MEMS batteries. Plans utilizing high specific activity radioisotopes were assessed in the investigation of designs employing multiple conversion cells and graded junctions with varying band gap properties. Voltage increases sought by serial combination of VOC s are proposed to overcome some of the limitations of a low power density. The power density is directly dependent on the total active areas.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Oct 06 00:00:00 EDT 2004},
month = {Wed Oct 06 00:00:00 EDT 2004}
}

Conference:
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