| 摘要 |
FIELD: measurement equipment. ^ SUBSTANCE: application: to detect spatial distribution and concentration of a component in a pore space of a porous material. The invention concept is as follows: it consists in the fact that a contrast X-ray substance is pumped into a sample of a porous material, such as a water-soluble salt of metal with high atomic weight that enters into a selective ion-exchange reaction with a surveyed component, of the common formula: R+M-, where R+ is selected from the group {Ba +; Sr2+; Tl+; Rb+Ç}, and M- is selected from the group {Cln; NOn; OHn; CH3COO, SO4; Ç} in accordance with the table of solubility of inorganic substances in water, upon completion of the reaction of selective ion exchange, a non-contrast displacement agent is pumped into a sample, the sample is scanned by means of X-ray microtomography to define spatial distribution and concentration of a surveyed component by means of analysis of the produced computer tomographic image. ^ EFFECT: higher X-ray contrast of low-contrast components contained in a pore space, when doing computer tomography of porous material samples. ^ 2 cl, 2 dwg |
