Construction of precision wire readout planes for the Short-Baseline Near Detector (SBND)

Acciarri, R. and Andreopoulos, C. and Asaadi, J. and Babicz, M. and Backhouse, C. and Badgett, W. and Bagby, L. F. and Barnes, C. and Basharina-Freshville, A. and Basque, V. and Baxter, A. and Bazetto, M. C. Q. and Beltramello, O. and Betancourt, M. and Bhanderi, A. and Bhat, A. and Bishai, M. R. M. and Bitadze, A. and Blake, A. S. T. and Boissevain, J. and Bonifazi, C. and Book, J. Y. and Brailsford, D. and Brandt, A. and Bremer, J. and Brooks, T. and Bullard, B. A. and Camilleri, L. and Carneiro, M. F. and Fernández, R. Castillo and Chalifour, M. and Chisnall, G. and Cianci, D. and Crespo-Anadón, J. I. and Cristaldo, E. and Cuesta, C. and Astiz, I. L. de Icaza and Roeck, A. De and Pereira, G. De Sá and Souza, G. de and Dennis, S. R. and Giulio, L. Di and Dixon, S. and Elvin, A. and Holt, S. and Mercer, I. and Nowak, J. and Ratoff, P. and Statter, J. and Wilson, A. (2020) Construction of precision wire readout planes for the Short-Baseline Near Detector (SBND). Journal of Instrumentation. ISSN 1748-0221

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The Short-Baseline Near Detector time projection chamber is unique in the design of its charge readout planes. These anode plane assemblies (APAs) have been fabricated and assembled to meet strict accuracy and precision requirements: wire spacing of 3 mm +/- 0.5 mm and wire tension of 7 N +/- 1 N across 3,964 wires per APA, and flatness within 0.5 mm over the 4 m +/- 2.5 m extent of each APA. This paper describes the design, manufacture and assembly of these key detector components, with a focus on the quality assurance at each stage.

Item Type:
Journal Article
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Journal of Instrumentation
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This is an author-created, un-copyedited version of an article accepted for publication/published in ournal of Instrumentation. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at doi:10.1088/1748-0221/15/06/P06033
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27 May 2020 16:15
Last Modified:
07 Jul 2020 07:16