An Associated Particle Imaging System for Soil-Carbon Measurements
2019
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 (SiO$_2$) 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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