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Navigation to
sections:
The Microanalysis System
What makes a Good Detector?
The Pulse Processor
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section
Role of the pulse processor
Analog pulse shaping
Time variant shaping
Digital pulse shaping
Fixed process time
Adaptive pulse shaping
Resolution & count rate
Pulse pile-up protection
Comparing different pulse processors
Summary
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The
pulse processor
Summary
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Both detector and pulse
processor are equally important parts of the measurement chain
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Pulse processor performance
is characterized by the maximum acquisition rate and resolution achievable
at each process time
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Measuring the change in
energy calibration and resolution as the count rate changes shows how
reliably the measurement chain will provide accurate data for automatic peak
identification and standardless quantitative analysis
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Even small changes in
resolution or energy calibration can lead to large errors when analyzing
severely overlapped X-ray lines
References
K. Kandiah, A. J. Smith and
G. White, IEEE Trans. Nucl. Sci., NS-22, 2058 (1975)
P.J. Statham, In
Proceedings NIST-MAS Special Topics Workshop, “Understanding the Accuracy
Barrier in Quantitative Electron Probe Microanalysis and the Role of
Standards” NIST, Gaithersburg, MD, USA, April 8-11, (2002)
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