1. L. Greiner1IPHC-LBNL Phone Conference 05/2012 STAR IPHC-LBNL Phone Conference News and updated ladder testing

2. L. Greiner2IPHC-LBNL Phone Conference 05/2012 STAR Topics Two power bus cable design and status Power regulator testing cable design and status Ladder testing results post IPHC visit (MS) General project progress. Discussion

3. L. Greiner3IPHC-LBNL Phone Conference 05/2012 STAR Two power bus cable design Design and layout are complete. Gerbers have been sent to Rui at CERN PBC shop. LBNL PO has been placed. Waiting on delivery date.

4. L. Greiner4IPHC-LBNL Phone Conference 05/2012 STAR Two power bus cable design (cont) Outer and Inner driver board design and layout complete. Outer driver board has been sent for fabrication (10 pieces) to CERN PCB shop.

5. L. Greiner5IPHC-LBNL Phone Conference 05/2012 STAR Power Regulator Test Cable Power regulator cable test schematic is complete. Power regulator cable layout is underway. We will be producing these PCBs locally, not in the CERN PCB shop.

6. L. Greiner6IPHC-LBNL Phone Conference 05/2012 STAR PXL Project News Preparation for DOE yearly review at BNL in July Primarily a project progress review with significant technical content. A set of documentation for the PXL detector CD-2/3 is available at http://rnc.lbl.gov/hft/hardware/docs/sensor_review/summary_v2.doc http://rnc.lbl.gov/hft/hardware/docs/sensor_review/summary_v2.doc Additional documentation for this review will be posted soon. New Virtex-6 based RDO motherboards. Design is complete and testing has finished 3 PCB architecture, new connectors, cables, 9U VME physical format. Full complement of 10 assembled boards have been ordered for the prototype run RDO. Expected delivery in 3 weeks. Significant Progress in mechanical structures. See pictures next slide

7. L. Greiner7IPHC-LBNL Phone Conference 05/2012 STAR Hardware progress

8. L. Greiner8IPHC-LBNL Phone Conference 05/2012 STAR Discussion Topics Ladder testing results. Implications of instability in thresholds and noise. Any other suggested testing? Are these effects understandable through the analysis of the sensor design? Ultimate 2 submission schedule. Monthly phone conferences – propose a schedule. (2 nd Tuesday of every month?) Please check your recurring meetings)