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Title: Elemental X-ray Imaging Using the Maia Detector Array: The Benefits and Challenges of Large Solid-Angle

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 {approx}100 M pixels in size.

Authors:
; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
Doe - Office Of Science
OSTI Identifier:
985525
Report Number(s):
BNL-93737-2010-JA
Journal ID: ISSN 0029-554X; NUIMAL; KA-04; TRN: US1006159
DOE Contract Number:  
DE-AC02-98CH10886
Resource Type:
Journal Article
Journal Name:
Nuclear Instruments and Methods
Additional Journal Information:
Journal Volume: 619; Journal Issue: 1-3; Journal ID: ISSN 0029-554X
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BNL; MOLYBDENUM; OPTIMIZATION; PIXE ANALYSIS; SENSITIVITY; SYNCHROTRONS

Citation Formats

Ryan, C G, De Geronimo, G, Kirkham, R, Hough, R M, Moorhead, G, Siddons, D P, de Jonge, M D, Paterson, D J, Howard, D L, and Cleverley, J S. Elemental X-ray Imaging Using the Maia Detector Array: The Benefits and Challenges of Large Solid-Angle. United States: N. p., 2009. Web.
Ryan, C G, De Geronimo, G, Kirkham, R, Hough, R M, Moorhead, G, Siddons, D P, de Jonge, M D, Paterson, D J, Howard, D L, & Cleverley, J S. Elemental X-ray Imaging Using the Maia Detector Array: The Benefits and Challenges of Large Solid-Angle. United States.
Ryan, C G, De Geronimo, G, Kirkham, R, Hough, R M, Moorhead, G, Siddons, D P, de Jonge, M D, Paterson, D J, Howard, D L, and Cleverley, J S. Fri . "Elemental X-ray Imaging Using the Maia Detector Array: The Benefits and Challenges of Large Solid-Angle". United States.
@article{osti_985525,
title = {Elemental X-ray Imaging Using the Maia Detector Array: The Benefits and Challenges of Large Solid-Angle},
author = {Ryan, C G and De Geronimo, G and Kirkham, R and Hough, R M and Moorhead, G and Siddons, D P and de Jonge, M D and Paterson, D J and Howard, D L and Cleverley, J S},
abstractNote = {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 {approx}100 M pixels in size.},
doi = {},
journal = {Nuclear Instruments and Methods},
issn = {0029-554X},
number = 1-3,
volume = 619,
place = {United States},
year = {2009},
month = {11}
}