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Radiation resistant PIDECα cell using photon intermediate direct energy conversion and a 210Po source.

Charles L Weaver1, Robert J Schott1, Mark A Prelas1

  • 1Nuclear Science and Engineering Institute, University of Missouri, Lafferre Hall, Columbia, MO 65211, United States.

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
|December 4, 2017
PubMed
Summary

This study demonstrates a new nuclear battery design using alpha particles that resists radiation damage. The Photon Intermediate Direct Energy Conversion (PIDEC) alpha (PIDECα) cell shows no performance degradation after a year of testing.

Keywords:
AlphavoltaicNuclear batteryPIDECα cellRadiation damage

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Area of Science:

  • Nuclear energy
  • Materials science
  • Radiation physics

Background:

  • Betavoltaic and alphavoltaic cells suffer performance degradation due to radiation damage from high-energy particles.
  • Indirect excitation methods, like the Photon Intermediate Direct Energy Conversion (PIDEC) framework, offer a way to protect transducers from radiation.
  • Previous work demonstrated a radiation-resistant PIDEC cell using beta particles (PIDECβ cell).

Purpose of the Study:

  • To investigate the feasibility of using alpha particles within the PIDEC framework for nuclear batteries.
  • To assess the radiation resistance of an alpha-particle-driven PIDEC cell (PIDECα cell).

Main Methods:

  • Incorporation of alpha particles into the PIDEC framework using the alpha emitter 210Po to create a PIDECα cell.
  • Exposure of the PIDECα cell transducer to alpha particles for over one year.

Main Results:

  • The PIDECα cell was successfully constructed and operated using alpha particles.
  • The PIDECα cell transducer exhibited no adverse effects from radiation damage after more than a year of exposure to alpha particles.

Conclusions:

  • The PIDEC framework is effective in mitigating radiation damage for alpha-particle-driven nuclear batteries.
  • PIDECα cells offer a promising solution for developing radiation-hardened nuclear batteries with potentially higher power density than beta-based systems.