Measurements of water content in geological samples using transmission of fast neutrons

Nordlund, Anders; Lindén, P.; Por, G.; Solymar, Mikael; Dahl, B.

doi:10.1016/s0168-9002(01)00162-0

Cited by 9 publications

(1 citation statement)

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“…24 For instance, neutron radiography was used to investigate water penetration and water distribution in geological samples and building materials. 25,26 In addition, investigation of water transport in polymers 27 and polymer electrolyte fuel cells was successfully conducted with neutron radiography techniques. 28 In the present investigation we focus on the use of neutron imaging to quantitatively investigate the ingress of water into casein films similar to those found in labeling applications.…”

Section: Introductionmentioning

confidence: 99%

Water ingress into a casein film quantified using time-resolved neutron imaging

Metwalli

Hermes

Calzada

et al. 2016

Phys. Chem. Chem. Phys.

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The migration of water into a casein film was probed with neutron radiography. From the neutron transmission images, the evolution of the water saturation profiles was extracted. The results indicate that the water influx is dominated by imbibition but also contains a diffusional component. The time dependence of the water ingress was quantified using a diffusion-like equation previously also applied to imbibition. A water transport coefficient D = 0.9 × 10(-9) m(2) s(-1) was found. This value and direct observation of the images indicate that the time taken for a typical adhesive casein-based layer to become saturated with water is of the order of hours.

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