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Report No.

A Two-dimensional scintillation neutron detector for TAKUMI diffractometer in J-PARC MLF

Nakamura, Tatsuya  ; Kawasaki, Takuro   ; To, Kentaro  ; Harjo, S.   ; Sakasai, Kaoru  ; Aizawa, Kazuya  

A large area, two-dimensional scintillation neutron detector was developed for Takumi diffractometer in the J-PARC MLF. The detector is made based on a scintillator/wavelength shifting fiber technology. The detector has a neutron-sensitive area of 32 $$times$$ 32 cm with a pixel size of 5 $$times$$ 5 mm, which is about 1.5-fold larger than the SENJU detector TAKUMI is one of the neutron diffractometers in the MLF dedicated to use for engineering material research. The developed detector array adds new capabilities to the instrument to measure two-dimensional data collection at the back-scattering angles with a better time-of-flight resolution.



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