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

Journal article

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.

Authors: Adams, C; An, R; Anthony, J; Asaadi, J; Auger, M

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: IOP Science
• Journal: Journal of Instrumentation
• Volume: 13
• Publication date: 2018-07-06
• Acceptance date: 2018-04-23
• DOI: 10.1088/1748-0221/13/07/P07006
• ISSN: 1748-0221
• Keywords: Time projection chambers; Data processing methods; Neutrino detectors