Abstract
The paper describes the dual-energy x-ray equipment, which
consists of a x-ray source, filters and a detector. The x-ray beam
can be moved automatically in two dimensions relative to a fixed
specimen. The purpose of the equipment is to measure
simultaneously the density and moisture content in porous
materials relevant for the building industry. The theory of
dual-energy x-ray absorptiometry (DEXA) is presented. DEXA results
on two combinations of aluminium and acrylic plastic are compared
with corresponding values calculated from the geometry of the
experimental setup. The results from the x-ray measurements show
good agreement with results from the two standard materials which
imitate water in a porous material. On this background the
dual-energy x-ray absorptiometry measurement principle can be used
on porous structural materials.
| Original language | English |
|---|---|
| Title of host publication | Building Physics in the Nordic Countries, Proc. of the 5th Symposium |
| Place of Publication | Goteborg, Sweden |
| Publisher | Chalmers tekniska högskola |
| Publication date | 1999 |
| Pages | 281-288 |
| Publication status | Published - 1999 |
| Event | 5th Symposium on Building Physics in the Nordic Countries - Gothenburg, Sweden Duration: 24 Aug 1999 → 26 Aug 1999 Conference number: 5 |
Conference
| Conference | 5th Symposium on Building Physics in the Nordic Countries |
|---|---|
| Number | 5 |
| Country/Territory | Sweden |
| City | Gothenburg |
| Period | 24/08/1999 → 26/08/1999 |