EMC studies for the vertex detector of the Belle II experiment

Belle II実験のバーテックス検出器のための電磁気的互換性のテスト

Thalmeier, R.*; 谷田 聖   ; 他102名*

Thalmeier, R.*; Tanida, Kiyoshi; 102 of others*

The upgrade of the Belle II experiment plans to use a vertex detector based on two different technologies, DEPFET pixel (PXD) technology and double side silicon microstrip (SVD) technology. The vertex electronics are characterized by the topology of SVD bias that forces to design a sophisticated grounding because of the floating power scheme. The complex topology of the PXD power cable bundle may introduce some noise inside the vertex area. This paper presents a general overview of the EMC issues present in the vertex system, based on EMC tests on an SVD prototype and a study of noise propagation in the PXD cable bundle based on Multi-conductor transmission line theory.