Title :
Development of micro-strip gas detector system with individual readouts for neutron scattering experiments
Author :
Tanaka, H. ; Nakamura, T. ; Yamagishi, H. ; Soyama, K. ; Aizawa, K. ; Ochi, A. ; Tanimori, T.
Author_Institution :
Quantum Beam Sci. Directorate, Japan Atomic Energy Agency, Ibaraki
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
Keywords :
ionisation chambers; neutron detection; position sensitive particle detectors; Bragg peak; data processing circuits; fast temporal response; gas vessel; low gamma-ray sensitivity; microstrip gas detector system; multichannel gas based detector; neutron scattering experiments; readouts; two-dimensional position sensitive neutron imaging detector; Data processing; Gamma ray detection; Gamma ray detectors; Gas detectors; High-resolution imaging; Joining processes; Neutron spin echo; Optical imaging; Position sensitive particle detectors; Spatial resolution;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2005 IEEE
Conference_Location :
Fajardo
Print_ISBN :
0-7803-9221-3
DOI :
10.1109/NSSMIC.2005.1596325
