Compton tomography generally makes use of the same scanning techniques (rotations and translations) as transmission tomography but modifies the reconstruction software. However, it is also possible to use an x-y scanning technique, i.e. two independent sets of linear translations of the source and of the detector. The x-y technique allows one to scan only a limited zone of the sample, whereas the rotation-translations method needs to scan the whole sample. x-y scanning has a serious drawback: it is more sensitive than the translation-rotation technique to self-absorption phenomena in the matrix. In this paper a new algorithm for x-y scanning reconstruction is described. This algorithm considers and corrects self-absorption effects without requiring a priori knowledge about the chemical composition.
A correction procedure for the self-absorption artifacts in X-Ray Compton tomography / Brunetti, Antonio; Golosio, B.; Cesareo, R:. - In: X-RAY SPECTROMETRY. - ISSN 0049-8246. - 31:(2002), pp. 377-382. [10.1002/xrs.592]
A correction procedure for the self-absorption artifacts in X-Ray Compton tomography
BRUNETTI, Antonio;
2002-01-01
Abstract
Compton tomography generally makes use of the same scanning techniques (rotations and translations) as transmission tomography but modifies the reconstruction software. However, it is also possible to use an x-y scanning technique, i.e. two independent sets of linear translations of the source and of the detector. The x-y technique allows one to scan only a limited zone of the sample, whereas the rotation-translations method needs to scan the whole sample. x-y scanning has a serious drawback: it is more sensitive than the translation-rotation technique to self-absorption phenomena in the matrix. In this paper a new algorithm for x-y scanning reconstruction is described. This algorithm considers and corrects self-absorption effects without requiring a priori knowledge about the chemical composition.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.