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A high-luminosity position sensitive neutron detector for residual stress measurements

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6 Author(s)
Myung-Kook Moon ; Korea Atomic Energy Res. Inst., Daejon, South Korea ; Chang-Hee Lee ; Em, V.T. ; Kang, Hee-Dong
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Because the diffraction angle is equal or close to 90° in residual stress measurements by neutron diffraction, the luminosity of the device can be increased by expansion of the detection window height without the deformation of the diffraction peak. A high luminosity position sensitive neutron detector has been designed and fabricated for measuring residual stress. The detector has a working window of 200 × 100 mm2. The detector has high efficiency, good position resolution, and linearity, small position error and low background counts. The detector characteristics are presented.

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Nuclear Science, IEEE Transactions on  (Volume:49 ,  Issue: 5 )