Quantitative comparison of X-ray fluorescence microtomography setups: Standard and confocal collimator apparatus

被引：16

作者：

Chukalina, M.

Simionovici, A.

Zaitsev, S.

Vanegas, C. J.

机构：

[1] Univ Grenoble, Lab Geophys Interne & Tectonophys, F-38041 Grenoble, France

[2] Russian Acad Sci, Inst Microelect Technol, Chernogolovka 142432, Russia

来源：

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY | 2007年 / 62卷 / 6-7期

关键词：

X-ray fluorescence computer tomography; Deposited dose; Confocal scanning;

D O I：

10.1016/j.sab.2007.02.020

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Recently, there has been a renewed interest for fluorescence spectroscopy, as provided by modem setups which allow 2D and 3D imaging of elemental distributions. Two directions are currently under development: the SR-based fluorescence tomography in polar scanning geometry, provided by the new new probes bring forth a new age in fluorescence spectrometry: high resolution, high intensity and high sensitivity which allow 3D elemental mapping of volumes. The major task now is the development of these complex tools into fully quantitative probes, reproducible and straightforward for general use. In this work we analyze two X-ray fluorescence microtomography techniques: an apparatus tomography using a confocal collimator for the data collection and a standard first generation Computed Tomography (CT) in the parallel scanning scheme. We calculate the deposited dose (amount of energy deposited and distributed in the sample during the data collection time) and find the conditions for the choice of the tomography scheme. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：544 / 548

页数：5

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