A real-time statistical alarm method for mobile gamma spectrometry-Combining counts of pulses with spectral distribution of pulses
Författare
Summary, in English
A well-founded decision needs to take into account as much information from a sample as possible. In gamma spectrometry, the number of photons and their energy are the two quantities readily accessible to the physicist and both should be used in order to increase the power of a statistical test. While the problem of counts of pulses has been much studied the problem of spectral distribution of pulses has been generally overlooked. This work presents a statistical test combining tests on count rate and tests on spectral distribution. The proposed method is shown to have an acceptable false positive rate and, when compared with two other test statistics found in the literature, greater power. (C) 2012 Elsevier B.V. All rights reserved.
Publiceringsår
2012
Språk
Engelska
Sidor
55-60
Publikation/Tidskrift/Serie
Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
Volym
681
Fulltext
- Available as PDF - 340 kB
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Dokumenttyp
Artikel i tidskrift
Förlag
Elsevier
Ämne
- Accelerator Physics and Instrumentation
Nyckelord
- Gamma spectrometry
- Hypothesis testing
- Low counts
- Multinomial
- distribution
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0167-5087