1. Perugia SuperB Workshop June 16-19, 2009
SVT- Status
Major issues to be resolved and status of the R&D necessary to resolve them.
Perugia SuperB Workshop
June 16-19, 2009
Giuliana Rizzo
Universita’ & INFN Pisa
G. Rizzo
SVT Status – SuperB Workshop, Perugia June

2. SVT Status – SuperB Workshop, Perugia June 19 - 2009
R&D work reorganized to prepare a baseline for TDR with:
Layer0 based on hybrid pixels
R&D still needed
Layer1-Layer5 similar to BaBar SVT
Layout Optimization & Design
Hybrid Pixels
Hybrid pixels hot issues:
50x50 mm2 pitch + fast readout
First front-end chip & pixel sensor in production in Sept. ‘09
First lab test Feb ’09
Testbeam with sensor connected Sept (bump-bonding schedule not yet clear)
Light pixel module support & cooling
prototypes support under test now
Pixel module interfaces
Front end analog cell design ongoing
S/N ~ 100 for 200 um thick sensor
Fast readout architecture optimized for Layer0 rate of 100 MHz/cm2
VHDL simulation shows Efficiency > 98 %
Small chip (4k pixels) layout is starting
G. Rizzo
SVT Status – SuperB Workshop, Perugia June

3. Pixel Module Interfaces
Light material high speed (160 MHz) and high track density pixel bus needed: requirements in competition!
First prototype submitted for production (CERN PCB shop) First test Fall ‘09
Simulation with present design encouraging
Several options under evaluation for the link HDI- DAQ board
Fast (3<->20Gbit/s) & “rad hard” link ( depending on the location)
Mixed technology solution (Cu+Optical link) affordable for a baseline option with 3 GBit/s (store data in HDI until LV1 trigger decision arrives):
Test setup under construction with the various components to validate them
G. Rizzo
SVT Status – SuperB Workshop, Perugia June

4. SVT Status – SuperB Workshop, Perugia June 19 - 2009
Other issues
Safety factor 5 for background rate (from pair production) is enough?
SVT mechanics and IR need to be designed to allow an “easy”/”fast” removal of Layer0:
for replacement of Layer0 when needed
Engineering of the more “standard” part of the detector still to start (L1-L5 & support structure): getting organized with a quite little manpower
G. Rizzo
SVT Status – SuperB Workshop, Perugia June