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Finapp Cosmic Ray Neutron Sensor
Select options This product has multiple variants. The options may be chosen on the product page -
Neutron Sensing Technologies
Neutron sensing technologies enable small changes of soil moisture to be measured with high accuracy.
Neutron sensing technologies count slow neutrons that have been thermalised by collision of fast neutrons or cosmic rays with hydrogen in the soil and which have bounced back to the slow neutron detector. The detectors only count returning slow, low energy neutrons. Neutrons are only slowed down by hydrogen atoms as hydrogen is the only element in the soil of similar size and mass. The count of the slow neutrons indicates the number of hydrogen atoms that have been recorded at a particular soil depth. The only source of hydrogen in soil is within water and so small changes in soil moisture can be monitored continuously as changes in hydrogen content in the soil and thermalised neutron density.
The Neutron Probe is a portable solution for highly accurate soil moisture measurements using a drilled hole, whilst the CRNS Finapp is a wide area surface and topsoil measurement solution