1. Tracking in SuperLHC 1. Radiation damage
Design luminosity =10xLHC
Running time = ½ LHC
Radiation dose = 5xLHC
Inner layers of SiTrk (r=20cm) are expected to be operated at 600V after 10 years of LHC
SuperLHC  3kV (?!)
Need replacement
Need improved more rad hard technology

2. Tracking in SuperLHC 2. resolution
ADC
Strips
R=20 cm
With collider energy and/or luminosity increase (e.g. SLHC) the emphasis shifts towards higher energy jets.
Energetic jets are more collimated  need higher coordinate resolution
7% of tracks in 500 GeV jets
have merged hits
2.5% of tracks in 100 GeV jets

3. Why now? CMS SiTrk detectors design time line
RD2 report – 1994
CMS technical proposal
RD20 report
RD48 report – 1997
Start construction phase 2003
Start data taking 2007 = years
SuperLHC start data taking 2017
RD?? report =2004
RD50 is formed 10/02 to address the needs of Super LHC

4. Why in US? Unique experience
Construction and operation of SiTrk in hadron environment
We know what to do and what not to do
Real life experience in using SiTrk data
Understanding si clusters and resolution
CMS construction in the US = TOB + Forward pixels
Experience with CMS detector structure and DAQ

5. RD50
Approved by CERN 06/02
52 institutions, 5 from US (Fermilab, Purdue, Rutgers, Syracuse, BNL), 2 interested to join UCSB, UR
Areas of research
Material engineering
Oxygenation, si carbite
Device engineering
Pad, 3D, thin detectors
Rad hard technologies used for LHC are not completely characterized