Nuclear microprobe applications in materials science

McMillan, J.W.

doi:10.1016/0168-583x(88)90044-4

Cited by 11 publications

(1 citation statement)

References 35 publications

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“…These applications include investigations of impurity and wear in materials science 5 , the determination of trace element distribution in mineralogical samples 6 , analysis of suspended particles in urban river water 7 , and even 6 analysis of the paper, parchment, and inks of historical documents for dating purposes.s This myriad of uses results from the major advantage of the PIXE method, its ability to acquire "fast and with minimal preparation, a determination of most of the chemical elements with a high and relatively uniform sensitivity and with convenient accuracy." 9 An interesting specialization of the PIXE method is external beam analysis.…”

Section: Techniques Of Elemental Analysismentioning

confidence: 99%

Development of an External Beam Ion Milliprobe

MacLaren¹

1990

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The goals of this Trident Project were the design, construction, testing, and initial application of an external beam ion milliprobe at the U.S. Naval Academy. The ion milliprobe is a tool for elemental analysis that employs the 1.7 million volt tandem electrostatic accelerator in Michelson C-7 to provide a beam of charged particles. The mechanism used for the analysis of elemental concentration is particle induced x-ray emission (PIXE). This technique involves detecting and counting the xrays produced when the focused beam of charged particles strikes the sample to be analyzed. This paper describes the design and construction of several essential specialized devices including an electrostatic quadrupole triplet lens, a current measuring collimator, an exit tip, and a sample enclosure. It discusses the procedures necessary to align, focus, and determine the size of the beam. Finally, the results of the initial analysis are evaluated and presented. N Table of Contents Abstract, 1 Acknowledgments, 2 List of Figures, 4 1. Introduction: Building a Tool for Elemental Analysis, 5

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Section: Techniques Of Elemental Analysismentioning

confidence: 99%