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Optimization of a neutron image plate detector with low gamma-sensitivity

Masalovich, S. ; Ioffe, A. ; Schlapp, Michael ; Brückel, T. ; Seggern, Heinz von :
Optimization of a neutron image plate detector with low gamma-sensitivity.
[Online-Edition: http://www.sciencedirect.com/science/article/pii/S0168900204...]
In: Nuclear instruments & methods in physics research / A, 539 (1-2) pp. 236-249.
[Artikel], (2005)

Offizielle URL: http://www.sciencedirect.com/science/article/pii/S0168900204...

Kurzbeschreibung (Abstract)

Recent experimental studies on new materials (storage phosphors and neutron converter) to be used in a low γγ-sensitive neutron image plate detector have been performed at the Research Center Jülich and Darmstadt University of Technology. It was shown that a mixture LiF+KCl:Eu2+ (or KBr:Eu2+) features a higher neutron/gamma signal ratio compared to BaFBr:Eu2+mixed with Gd as in commercially available neutron image plates. However, the smaller neutron capture cross-section of 6Li in comparison with Gd requires the use of significantly thicker recording layers. This article presents the results of numerical estimations for the performance of such a detector. The use of image plates with a thick recording layer and a regular cell structure allowing for the increase in spatial resolution (pixelated image plate) is discussed.

Typ des Eintrags: Artikel
Erschienen: 2005
Autor(en): Masalovich, S. ; Ioffe, A. ; Schlapp, Michael ; Brückel, T. ; Seggern, Heinz von
Titel: Optimization of a neutron image plate detector with low gamma-sensitivity
Sprache: Englisch
Kurzbeschreibung (Abstract):

Recent experimental studies on new materials (storage phosphors and neutron converter) to be used in a low γγ-sensitive neutron image plate detector have been performed at the Research Center Jülich and Darmstadt University of Technology. It was shown that a mixture LiF+KCl:Eu2+ (or KBr:Eu2+) features a higher neutron/gamma signal ratio compared to BaFBr:Eu2+mixed with Gd as in commercially available neutron image plates. However, the smaller neutron capture cross-section of 6Li in comparison with Gd requires the use of significantly thicker recording layers. This article presents the results of numerical estimations for the performance of such a detector. The use of image plates with a thick recording layer and a regular cell structure allowing for the increase in spatial resolution (pixelated image plate) is discussed.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Nuclear instruments & methods in physics research / A
Band: 539
(Heft-)Nummer: 1-2
Verlag: Elsevier Science Publishing
Freie Schlagworte: Neutron detector, Image plate, Detector efficiency, Pixelated detector
Fachbereich(e)/-gebiet(e): Fachbereich Material- und Geowissenschaften > Materialwissenschaften > Elektronische Materialeigenschaften
Fachbereich Material- und Geowissenschaften > Materialwissenschaften
Fachbereich Material- und Geowissenschaften
Hinterlegungsdatum: 20 Nov 2008 08:21
Offizielle URL: http://www.sciencedirect.com/science/article/pii/S0168900204...
Zusätzliche Informationen:

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Sponsoren: The present study was supported by the EU in the frame of the TECHNI project (Contract No. HPRI-CT-1999-50005).
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