Author/Authors :
Banda، نويسنده , , Y. and Coulter، نويسنده , , P. and Cussans، نويسنده , , D. and Damerell، نويسنده , , C. and Devetak، نويسنده , , E. and Fopma، نويسنده , , J. and Foster، نويسنده , , B. and Frost، نويسنده , , R. and Gao، نويسنده , , R. and Goldstein، نويسنده , , J. and Greenshaw، نويسنده , , T. C. Harder، نويسنده , , K. and Hawes، نويسنده , , B. and Hillert، نويسنده , , S. and Jeffery، نويسنده , , B. and John، نويسنده , , J.J. and Kundu، نويسنده , , N. and Li، نويسنده , , Y. and Murray، نويسنده , , P. and Nomerotski، نويسنده , , A. and Perry، نويسنده , , C. and Stefanov، نويسنده , , K. and Thomas، نويسنده , , S. and Velthuis، نويسنده , , J. and Wolliscroft، نويسنده , , T. and Worm، نويسنده , , S. and Yow، نويسنده , , J. and Zhang، نويسنده , , Z.، نويسنده ,
Abstract :
The Linear Collider Flavour Identification (LCFI) Collaboration is developing the sensors, readout electronics and mechanical support structures for the vertex detector 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 the 1% level. In order to satisfy this requirement, Column Parallel CCDs (CPCCDs), Column Parallel Readout chips (CPRs) and Column Parallel Driver chips (CPDs) have been developed. The CPCCD has to operate at a clock frequency of 50 MHz, which represents a difficult technical challenge due to the large sensor capacitance. The design and performance of the second generation CPCCD sensors, CPC2, and the new driver chip, CPD1, which meet these challenging requirements, are described.