Novel neutron detectors based on the time projection method

We present the first prototype of a novel thermal neutron detector using the time projection method. The system consists of 8 TimePix ASICs with postprocessed InGrid meshes. Each ASIC has 256×256 pixels of 55 µm × 55 µm in size with the capability to measure charge or time. This allows to visualize...

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Bibliographic Details
Published inPhysica. B, Condensed matter Vol. 551; pp. 517 - 522
Main Authors Köhli, M., Desch, K., Gruber, M., Kaminski, J., Schmidt, F.P., Wagner, T.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 15.12.2018
Elsevier BV
Subjects
10Boron
Algorithms
Neutron converter
Neutron counters
Neutron detection
Neutrons
Optical properties
Particle physics
Particle tracking
Position sensitive
Sensors
Spatial analysis
Spatial resolution
Thermal neutrons
Thickness
Time projection chamber
TimePix
Position sensitive
Neutron converter
10Boron
TimePix
Neutron detection
Time projection chamber
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Summary:We present the first prototype of a novel thermal neutron detector using the time projection method. The system consists of 8 TimePix ASICs with postprocessed InGrid meshes. Each ASIC has 256×256 pixels of 55 µm × 55 µm in size with the capability to measure charge or time. This allows to visualize entire conversion particle tracks with their spatial and time information and, by using event reconstruction algorithms, discriminate against the background of others. By using the Scalable Readout System the detector as presented here could also be upscaled to much larger active areas. In the current configuration with a B410C layer of 1μm thickness aligned in parallel to the readout we could achieve in Ar:CO2 80:20 a spatial resolution of σ=(115±8)μm.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2018.03.026