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Development of material evaluation method by using a pulsed neutron transmission with pixel type detectors

Authors
Journal
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
0168-9002
Publisher
Elsevier
Publication Date
Volume
623
Issue
1
Identifiers
DOI: 10.1016/j.nima.2010.03.082
Keywords
  • Pixel Type Detector
  • High Counting Rate
  • Pulsed Neutron Imaging
  • Time Of Flight
  • Bragg Edge
  • Resonance Absorption

Abstract

Abstract A spectroscopic neutron imaging is attractive in the research field of energy-selective neutron radiography. Imaging using the time-of-flight (TOF) method at a pulsed neutron source is very suitable for such spectroscopic measurements. We developed new two-dimensional position sensitive neutron detectors (2D-PSNDs) aiming at high detection efficiency, high counting rate and high time resolution which are the most important 2D-PSND performances for the spectroscopic imaging. These detectors consist of independent 6Li-glass (Ce) scintillator pixels, and have been used in various pulsed neutron transmission experiments. As a result, we have succeeded in developing various new imaging techniques; crystallographic, nuclide-selective and thermographic imaging.

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