Abstract

We have been developing a micro-strip (MS) gas detector system with individual readouts for neutron scattering experiments. The performance of two-dimensional position sensitive neutron imaging detector such as a high spatial resolution, a high detection efficiency, a fast temporal response, low gamma-ray sensitivity are required for detecting the accurate Bragg-peak from the sample target. To meet these specifications in addition to a compact size in spite of multi-channel gas based detector, we constructed the detector system that has a gas vessel with 541 channel feedthrough directly connecting to the data processing circuits. The developed detector system exhibited a temporal response of 200 ns, a spatial resolution of about 1.0 mm in full width at half maximum and good agreement between an incident position and measured peak position with a gas pressure of 6.4-atm helium with 1.6-atm CF4

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