TY - JOUR
T1 - Neutron imaging detector based on the μpIC micro-pixel chamber
AU - Parker, J. D.
AU - Hattori, K.
AU - Fujioka, H.
AU - Harada, M.
AU - Iwaki, S.
AU - Kabuki, S.
AU - Kishimoto, Y.
AU - Kubo, H.
AU - Kurosawa, S.
AU - Miuchi, K.
AU - Nagae, T.
AU - Nishimura, H.
AU - Oku, T.
AU - Sawano, T.
AU - Shinohara, T.
AU - Suzuki, J.
AU - Takada, A.
AU - Tanimori, T.
AU - Ueno, K.
N1 - Funding Information:
This work was supported by the Quantum Beam Technology Program of the Japan Ministry of Education, Culture, Sports, Science and Technology (MEXT) . The authors would like to thank the staff at J-PARC and the Materials and Life Science Facility for providing a stable neutron beam during our test experiment in November 2009.
PY - 2013/1/1
Y1 - 2013/1/1
N2 - We have developed a prototype time-resolved neutron imaging detector employing the micro-pixel chamber (μPIC), a micro-pattern gaseous detector, coupled with a field programmable gate array-based data acquisition system for applications in neutron radiography at high-intensity neutron sources. The prototype system, with an active area of 10×10 cm 2 and operated at a gas pressure of 2 atm, measures both the energy deposition (via time-over-threshold) and three-dimensional track of each neutron-induced event, allowing the reconstruction of the neutron interaction point with improved accuracy. Using a simple position reconstruction algorithm, a spatial resolution of 349±36μm was achieved, with further improvement expected. The detailed tracking allows strong rejection of background gamma-rays, resulting in an effective gamma sensitivity of 10 -12 or less, coupled with stable, robust neutron identification. The detector also features a time resolution of 0.6μs.
AB - We have developed a prototype time-resolved neutron imaging detector employing the micro-pixel chamber (μPIC), a micro-pattern gaseous detector, coupled with a field programmable gate array-based data acquisition system for applications in neutron radiography at high-intensity neutron sources. The prototype system, with an active area of 10×10 cm 2 and operated at a gas pressure of 2 atm, measures both the energy deposition (via time-over-threshold) and three-dimensional track of each neutron-induced event, allowing the reconstruction of the neutron interaction point with improved accuracy. Using a simple position reconstruction algorithm, a spatial resolution of 349±36μm was achieved, with further improvement expected. The detailed tracking allows strong rejection of background gamma-rays, resulting in an effective gamma sensitivity of 10 -12 or less, coupled with stable, robust neutron identification. The detector also features a time resolution of 0.6μs.
KW - Gaseous detector
KW - Micro-pattern detector
KW - Neutron imaging
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U2 - 10.1016/j.nima.2012.08.036
DO - 10.1016/j.nima.2012.08.036
M3 - Article
AN - SCOPUS:84867086646
SN - 0168-9002
VL - 697
SP - 23
EP - 31
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ER -