Maximum-likelihood principle for determining positions in neutron scintillation detectors

Pulse height division is generally used to determine a position channel for storing detection events in position-sensitive detectors (PSDs). An alternative method based on the maximum likelihood principle is discussed. This principle is modified in order that the storage of events can be done online...

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Bibliographic Details
Published inIEEE transactions on nuclear science Vol. 47; no. 6; pp. 2699 - 2705
Main Authors Schelten, J., Engels, R., Reinartz, R.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.12.2000
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Channels
Detectors
Event detection
Exact solutions
Gamma ray detection
Gamma ray detectors
Mathematical analysis
Maximum likelihood detection
Neutrons
On-line systems
Position sensitive particle detectors
Positron emission tomography
Scintillation counters
Simulation
Solid scintillation detectors
Spatial resolution
Variability
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Summary:Pulse height division is generally used to determine a position channel for storing detection events in position-sensitive detectors (PSDs). An alternative method based on the maximum likelihood principle is discussed. This principle is modified in order that the storage of events can be done online. Analytic expressions for the spatial resolution are derived and evaluated. Both detection methods are simulated for linear PSDs. Results on uniformity, linearity, stability and spatial resolution are presented. The major specific advantage of the proposed method is an improved uniformity of the response along the entire detector.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9499
1558-1578
DOI:10.1109/23.901176