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Realisation of a small-size high resolution linear neutron scintillation detector

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6 Author(s)
Engels, R. ; Zentrallabor fur Electron., Forschungszentrum Julich GmbH, Germany ; Jansen, E. ; Reinartz, R. ; Reinhart, P.
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The spectrum of position sensitive neutron scintillation detectors, which have been developed and designed in our institute during the last decade, comprises several high resolution linear detectors. The design of the small size high resolution detector is based on a modified Anger technology using a linear array of 24 HAMAMATSU type R1770 rectangular photomultipliers and a 1 mm 6Li glass scintillator. The sensitive detector area is 200×20 mm and the spatial resolution is 1.2 mm. The neutron sensitivity at 1 Å is about 65% and the residual gamma sensitivity is less than 10-4 and the maximum count rate is about 100 kHz. The detector is linked to a highly flexible PC-based data acquisition system with 12 bit position and 16 bit time resolution. The stand alone detector and data acquisition system is aimed preferably at pulsed sources performing high resolution angle-dispersive time-of-flight experiments

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Nuclear Science, IEEE Transactions on  (Volume:45 ,  Issue: 3 )