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Title: Noise propagation issues in Belle II pixel detector power cable

The vertex detector used in the upgrade of High-Energy physics experiment Belle II includes DEPFET pixel detector (PXD) technology. In this complex topology the power supply units and the front-end electronics are connected through a PXD power cable bundle which may propagate the output noise from the power supplies to the vertex area. This article presents a study of the propagation of noise caused by power converters in the PXD cable bundle based on Multi-conductor Transmission Line (MTL) theory. The work exposes the effect of the complex cable topology and shield connections on the noise propagation, which has an impact on the requirements of the power supplies. This analysis is part of the electromagnetic compatibility based design focused on functional safety to define the shield connections and power supply specifications required to ensure the successful integration of the detector and, specifically, to achieve the designed performance of the front-end electronics.
 [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [3] ;  [4] ;  [5]
  1. Technological Inst. of Aragon (ITAINNOVA), Zaragoza (Spain)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States). Grid Intergration, Systems, and Mobility (GISMo) and Applied Energy Division
  3. Max Planck Inst. for Physics, Munich (Germany)
  4. Ludwig Maximilian Univ., Munich (Germany)
  5. Univ. of Zaragoza (Spain). Dept. of Electric Engineering
Publication Date:
Grant/Contract Number:
AC02-76SF00515; AC02-76CH03000; FPA2014-55295- C3-3-R
Accepted Manuscript
Journal Name:
Journal of Instrumentation
Additional Journal Information:
Journal Volume: 13; Journal Issue: 04; Journal ID: ISSN 1748-0221
Institute of Physics (IOP)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE; Ministry of Economy, Industry and Competitiveness (Spain); DEPFET PXD Collaboration
Country of Publication:
United States
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 42 ENGINEERING; Simulation methods and programs; Detector grounding; Performance of High Energy Physics Detectors; Front-end electronics for detector readout
OSTI Identifier: