Abstract
A new multitube position-sensitive detector (PSD) for small-angle neutron scattering spectrometer at the Chinese Mianyang Research Reactor was assembled in 2021. This paper presents the experimental design and implementation aimed at noise reduction, spatial resolution testing, and position correction for the multitube PSD. In addition, the analysis results indicate that the deviation of the linear fitting correction increases linearly with the gain difference between the two ends of the PSD, ultimately hindering effective position correction. To address this issue, a new position correction method for multitube PSDs has been proposed that is simpler, more accurate, and broadly applicable to similar detectors.
Published Version
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