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A Correction procedure for the self-absorption artifacts in x-ray Compton tomography

Brunetti, Antonio and Golosio, Bruno and Cesareo, Roberto (2002) A Correction procedure for the self-absorption artifacts in x-ray Compton tomography. X-Ray Spectrometry, Vol. 35 (5), p. 377-382. eISSN 1097-4539. Article.

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DOI: 10.1002/xrs.592

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.

Item Type:Article
ID Code:2028
Status:Published
Refereed:Yes
Uncontrolled Keywords:Compton tomography, x–y scanning technique, self-absorption effects
Subjects:Area 02 - Scienze fisiche > FIS/07 Fisica applicata (a beni culturali, ambientali, biologia e medicina)
Divisions:001 Università di Sassari > 03 Istituti > Matematica e fisica
Publisher:John Wiley & Sons
eISSN:1097-4539
Deposited On:18 Aug 2009 10:06

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