Naslov
Multi-spectral (W, Mo, Cu, and Ag) XCT measurements

Autori
Katić, Marko ; Markučič, Damir ; Baršić, Gorana

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
8th Conference on Industrial Computed Tomography (iCT) 2018, 6-9 Feb, Wels, Austria / Kastner, J. - Wels : NDT.Net, 2018

Skup
8th Conference on Industrial Computed Tomography (iCT 2018)

Mjesto i datum
Wels, Austrija, 06.02.2018. - 09.02.2018

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Computed tomography, multi-spectral CT, CT accuracy

Sažetak
X-ray computed tomography (XCT) is becoming widely used for metrology of complex geometry, and special attention is given to improvement of measurement of assemblies that are made of different materials, since they are common in industrial applications. Multi-material objects are adding additional problems in XCT data evaluation, which only complicates the usual issues found in single material XCT (beam hardening, streak artefacts etc.). Dual-energy XCT scanning is a well-known approach to resolve issues arising from samples having various densities- a sample is scanned at two distinct power levels, creating different X-ray spectra for each scan. Using different X-ray target materials is a different way of achieving this ; emission spectrum can be changed while keeping the power level constant. Constant energy results with a constant focal spot size over multiple scans, meaning that such multi-spectral technique should provide better accuracy in XCT scans.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA