Wt. Watson et al., RESULTS OF MODELING AND EXPERIMENTAL MEASUREMENTS FOR THE DESIGN OF ANEUTRON SURFACE MOISTURE MEASUREMENT SENSOR, IEEE transactions on nuclear science, 44(3), 1997, pp. 764-768
Computer modeling and experimental testing have been performed to prod
uce a design for a neutron-moderation-based surface moisture sensor. R
esults indicate that this sensor should be capable of providing inform
ation about the moisture concentration profile in the top 15 cm of mat
erial. Tests show that the sensor should be capable of operating in th
e expected high temperature and gamma-ray exposure rate fields within
the Hanford Site tanks. A field-ready sensor and an in-tank deployment
system were fabricated for application of this technology to the Hanf
ord Site tank farms.