An emerging technology is the Cosmic Ray Neutron Sensor (CRNS). These systems measure naturally occurring neutrons from cosmic rays to understand the moisture levels in soil below the surface, which can help to better understand the impact to plant root systems and nutrients. With such information, we can make better irrigation decisions, conserve energy, and provide better predictive ecological models and warnings for events such as drought and flood conditions. The RDT Cosmic Soil Moisture Monitor (Cosmic-SMM), provides accurate measurements of the water content in soil, providing real-time, critical data to decision makers in irrigation, water management, agriculture, and climate monitoring.
With a high neutron-sensitivity and large sensing-area, it is possible to measure soil moisture content without an on-board radiation source, and instead measure the natural neutron background. The cosmic-ray background is made up of a spectrum of neutron energies, ranging from thermal (0.025 eV) to fast neutrons (>1 MeV). Epithermal neutrons, in the middle of this range (~0.025eV – 1MeV), make up the majority of the neutrons (once thermalized) measured by the neutron detector. When a neutron interacts in hydrogen (water), it loses energy, sometimes all of its energy, and therefore a correlation can be made between the number of neutrons measured by the Cosmic-SMM and the volume of water within the soil.
ESR5000 Benchtop ESR / EPR Spectrometer (Formerly MS-5000)
microESR Benchtop ESR / EPR Spectrometer
Lexsyg Research Imaging TL-OSL-RF System
Lexsyg Smart TL / OSL Reader
bMCA Ethernet Multi-Channel Analyzer