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Report No.

Development of scintillator based neutron detectors for intense pulsed neutrons, 10; Development of image signal processing device for neutron image detectors

Ebine, Masumi; Katagiri, Masaki; Birumachi, Atsushi; Nakamura, Tatsuya; Hosoya, Takaaki; Soyama, Kazuhiko

It is dispensable to develop two-dimensional neutron imaging detectors with high position resolution, high time resolution, high counting rate, high detection efficiency, wide detection area and wide dynamic range for pulsed-neutron scattering instruments in J-PARC. Therefore, we developed an image signal-processing device that used two FPGAs with 100MHz clock for these detectors. After photon-counting signals are converted to digital signals by sampling method using the clock signal, a neutron incident position is found out by analyzing the pattern of these digital signals in the device. The incident position finding characteristics obtained by the pattern analysis method are reported.



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