Author/Authors :
Hawes، نويسنده , , B. and Cussans، نويسنده , , D. and Damerell، نويسنده , , C. and Devetak، نويسنده , , E. and Fopma، نويسنده , , J. and Gao، نويسنده , , R. and Goldstein، نويسنده , , J. and Greenshaw، نويسنده , , T. and Hillert، نويسنده , , S. and Kundu، نويسنده , , N. and Nomerotski، نويسنده , , A. and Perry، نويسنده , , C. and Stefanov، نويسنده , , K. and Thomas، نويسنده , , S. and Worm، نويسنده , , S.، نويسنده ,
Abstract :
The LCFI Collaboration is developing the sensors, readout electronics and mechanical support structures for the Vertex Detector (VXD) of the International Linear Collider (ILC). High-speed readout is needed to ensure that the occupancy due to the pair production background at the ILC is kept below 1% level. In order to satisfy this requirement, Column Parallel CCDs (CPCCDs) and Column Parallel Readout chips (CPRs) have been developed. The CPCCD has to operate at a clock frequency of 50 MHz, which represents a difficult technical challenge due to the relatively large sensor capacitance. The design and performance of planar transformers, which can be used to provide the required 20 A clock current, are described.
