Abstract
Neutron radiography (NR) provides a sensitive and quantitative technique for the determination of hydrogen. NR can therefore be used to determine the porosity of rocks impregnated with a hydrogen-containing material: in this feasibility study, the water content of granodiorite and mylonite samples was determined by quantitative NR combined with densitometric scanning. For a sample of 1-cm thickness, this technique allows porosity detection down to 0.015 with a resolution of 1 mm 2, down to 0.005 with a resolution of 1 cm 2, and is applicable for porosities higher than 0.05 with a precision of ±0.5% at a resolution of 1 cm 2. 3-D information may be gained by combination of 2-D radiographs. The accuracy of the technique was estimated by comparing the NR results with those obtained by gravimetry. Extension to resin-impregnated porosity and to other types of rock is discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
