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Elemental X-ray imaging using the Maia detector array: The benefits and challenges of large solid-angle
- Source :
-
Nuclear Instruments & Methods in Physics Research Section A . Jul2010, Vol. 619 Issue 1-3, p37-43. 7p. - Publication Year :
- 2010
-
Abstract
- Abstract: The fundamental parameter method for quantitative SXRF and PIXE analysis and imaging using the dynamic analysis method is extended to model the changing X-ray yields and detector sensitivity with angle across large detector arrays. The method is implemented in the GeoPIXE software and applied to cope with the large solid-angle of the new Maia 384 detector array and its 96 detector prototype developed by CSIRO and BNL for SXRF imaging applications at the Australian and NSLS synchrotrons. Peak-to-background is controlled by mitigating charge-sharing between detectors through careful optimization of a patterned molybdenum absorber mask. A geological application demonstrates the capability of the method to produce high definition elemental images up to ∼100M pixels in size. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 01689002
- Volume :
- 619
- Issue :
- 1-3
- Database :
- Academic Search Index
- Journal :
- Nuclear Instruments & Methods in Physics Research Section A
- Publication Type :
- Academic Journal
- Accession number :
- 51810070
- Full Text :
- https://doi.org/10.1016/j.nima.2009.11.035