1. IPHC-LBL-BNL video conference 19 Jan 2007 HFT development MimoStar2 based telescope

2. IPHC-LBL-BNL video conference 19 Jan 2007 Outline Our goals Setup Current status Problems to solve What next …

3. IPHC-LBL-BNL video conference 19 Jan 2007 Our goals: test functionality of a prototype MIMOSTAR2 detector in the environment at STAR:  Charged particle environment near the interaction region in STAR.  Performance of our cluster finding algorithm.  Performance of the MIMOSTAR2 sensors.  Functionality of our tested interfaces to the other STAR subsystems.  Performance of our hardware / firmware as a system.  The noise environment in the area in which we expect to put the final HFT.

4. IPHC-LBL-BNL video conference 19 Jan 2007 STRATIX DAUGHTER CARD RORC SIU MimoStar2 chips on kapton cables MOTHER BOARD Acquisition Server (Linux) Telescope setup - components Control PC (Win)

5. IPHC-LBL-BNL video conference 19 Jan 2007 Power, clk, sync, jtag analog mxfirst Control, readout TELESCOPE HEAD 3 MimoStar2 chips as TELESCOPE Telescope setup

6. IPHC-LBL-BNL video conference 19 Jan 2007 East Pole Tip installation H. Wieman

7. IPHC-LBL-BNL video conference 19 Jan 2007 Current Status Electronics Hardware / Hardware – All required PCBs, cables, computers, etc are in hand. We are currently working on some problems involving noise in our electronics setup. We hope to resolve this shortly and assemble and test the telescope setup in a beam run at the ALS at LBL before moving the system to BNL for the beam test. Firmware – The required functionality required for the test has been implemented and tested in the ways possible before a working set of detectors is used. Integration – The insertion tube and electronics box are in place at BNL as is the cooling system, DAQ and control PCs. Final assembly and testing of the telescope is required before we can do further testing.

8. IPHC-LBL-BNL video conference 19 Jan 2007 Problems to solve - distortions In the configuration with a fully loaded kapton cable we see some distortions which appear in the middle of the frame

9. IPHC-LBL-BNL video conference 19 Jan 2007 Problems to solve - noise The noise doesn’t come from the DAQ system (~1 ADC) setupsub arrayPeak [ADC] Noise [ADC] ENC [e - ] IPHC (40°C) Std--17.8 Rad--25.3 Mezz. fullStd2605.232.8 Rad2225.440.0 Mezz. partStd2865.129.2 Rad2475.234.8 Flex 1Std2684.225.7 Rad2274.834.7 Flex 2aStd3045.632.0 Rad2665.835.7 Flex 2bStd1833.934.9 Rad1624.040.5 IPHC – results from Strasbourg Mezz. Full – chip bonded on a mezzanine card Mezz. Part – chip bonded on a mezzanine card with part of the bonds (like for a flex cable) Flex1 – only on flex cable in the hft system Flex2 – two chips in parallel in the hft system