Speaker
Description
Summary
The present mechanical design of the vertex detector for SiD is integrated with both
the design of the SiD outer tracker and with beam tube support. A method to allow
vertex detector servicing has been taken into account in developing the design. The
design includes a 12.5 cm long central barrel with silicon pixels. Four disks with
silicon pixels and three additional disks, which could be based upon silicon pixels
or micro-strips, are located beyond each barrel end. Since sensor technologies are
rapidly evolving and final operating requirements are uncertain, we have assumed
sensor operation at -10 Celsius or above and air-cooling. That allows the number of
radiation lengths represented by the vertex detector to be limited. Carbon fiber
structures integrate silicon support with support of a beryllium beam tube. Initial
estimates of the number of radiation lengths represented by the vertex detector,
power removed by air-cooling, and sensor temperatures will be given.
