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Open Access Publications from the University of California

An associated particle imaging system for soil-carbon measurements

  • Author(s): Ayllon Unzueta, M;
  • Brodie, E;
  • Brown, C;
  • Castanha, C;
  • Gary, C;
  • Hicks Pries, C;
  • Larsen, W;
  • Ludewigt, B;
  • Rosenstrom, A;
  • Persaud, A
  • et al.

We present first results from experimental data showing the capabilities of an Associated Particle Imaging system to measure carbon in soil and other elements. Specifically, we present results from a pre-mixed soil sample containing pure sand (SiO2) and 4 % carbon by weight. Because the main isotopes of all those three elements emit characteristic high-energy gamma rays following inelastic neutron scattering, it is possible to measure their distribution with our instrument. A 3D resolution of several centimeters in all dimensions has been demonstrated.

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