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Elemental X-ray imaging using the Maia detector array: The benefits and challenges of large solid-angle
Citation
Ryan, CG and Kirkham, R and Hough, RM and Moorhead, G and Siddons, DP and de Jonge, MD and Paterson, DJ and De Geronimo, G and Howard, DL and Cleverley, JS, Elemental X-ray imaging using the Maia detector array: The benefits and challenges of large solid-angle, Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment, 619, (1-3) pp. 37-43. ISSN 0168-9002 (2010) [Refereed Article]
DOI: doi:10.1016/j.nima.2009.11.035
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 not, vert, similar100 M pixels in size.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | SXRF; PIXE; Dynamic analysis; X-ray microprobe; Silicon detector; Trace element imaging; Fundamental parameter method |
| Research Division: | Physical Sciences |
| Research Group: | Synchrotrons and accelerators |
| Research Field: | Accelerators |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding knowledge |
| Objective Field: | Expanding knowledge in the physical sciences |
| ID Code: | 70472 |
| Year Published: | 2010 |
| Web of Science® Times Cited: | 154 |
| Deposited By: | Research Division |
| Deposited On: | 2011-06-23 |
| Last Modified: | 2011-10-29 |
| Downloads: | 0 |
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