3D imaging of nuclear reactions using GEM TPC

Jan Stefan Bihałowicz; Mikołaj Ćwiok; Wojciech Dominik; Grzegorz Kasprowicz; Krzysztof Poźniak

doi:10.1117/12.2075052

25 November 2014 3D imaging of nuclear reactions using GEM TPC

Jan Stefan Bihałowicz, Mikołaj Ćwiok, Wojciech Dominik, Grzegorz Kasprowicz, Krzysztof Poźniak

Proceedings Volume 9290, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2014; 92902C (2014) https://doi.org/10.1117/12.2075052
Event: Symposium on Photonics Applications in Astronomy, Communications, Industry and High-Energy Physics Experiments, 2014, Warsaw, Poland

Abstract

We present a prototype of time projection chamber with planar electronic readout. The particular aspect of the readout is the arrangement and connection of pads in three linear arrays. A track of an ionizing particle may be reconstructed by applying the specially developed algorithms to the signals generated simultaneously in the three linear arrays of strips rotated by 60°. This provides the measurement of the coordinates of the track segment corresponding to the defined time slice in the plane perpendicular to the drift vector. The relative coordinate in the orthogonal direction is provided by the measurement of time sequence of signals at the known drift velocity value. It is expected to achieve comparable precision of 3D reconstruction of charged tracks in nuclear reactions at low energies as for the pixel readout but with significantly reduced costs of electronics. In this work the results of the first experiments using this TPC are presented. The reconstructed tracks of α particles from decay of ²²²Rn using simple algorithm are shown. The encouraging results confirm the capability of such TPC to measure low-energy charged products of nuclear reactions and nuclear decays.

Citation Download Citation

Jan Stefan Bihałowicz, Mikołaj Ćwiok, Wojciech Dominik, Grzegorz Kasprowicz, and Krzysztof Poźniak "3D imaging of nuclear reactions using GEM TPC", Proc. SPIE 9290, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2014, 92902C (25 November 2014); https://doi.org/10.1117/12.2075052

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