Publications associated with T2K

Ionization electron signal processing in single phase LArTPCs: Part I Algorithm description and quantitative evaluation with MicroBooNE simulation

Journal of Instrumentation IOP Science 13 (2018)

R An, J Anthony, J Asaadi, M Auger, L Bagby, S Balasubramanian, B Baller, C Barnes, G Barr, M Bass, F Bay, A Bhat, K Bhattacharya, M Bishai, A Blake, T Bolton, L Camilleri, D Caratelli, RC Fernandez, F Cavanna, G Cerati, H Chen, E Church, D Cianci, GH Collin

We describe the concept and procedure of drifted-charge extraction developed in the MicroBooNE experiment, a single-phase liquid argon time projection chamber (LArTPC). This technique converts the raw digitized TPC waveform to the number of ionization electrons passing through a wire plane at a given time. A robust recovery of the number of ionization electrons from both induction and collection anode wire planes will augment the 3D reconstruction, and is particularly important for tomographic reconstruction algorithms. A number of building blocks of the overall procedure are described. The performance of the signal processing is quantitatively evaluated by comparing extracted charge with the true charge through a detailed TPC detector simulation taking into account position-dependent induced current inside a single wire region and across multiple wires. Some areas for further improvement of the performance of the charge extraction procedure are also discussed.

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