1. Slide 1UCSB CMS Weekly Status MeetingCMS 4-Hybrid Test System Sam Burke EE UCSB 4-Hybrid Thermal Test System Status 4 August 2003 Sam Burke UCSB HEP Group

2. Slide 2UCSB CMS Weekly Status MeetingCMS 4-Hybrid Test System Sam Burke EE Progress ARC Interface Electronics Design à LVDS to CMOS NIM Converter à NIM Module fabrication underway Cold Box Cover surfacing to improve seal

3. Slide 3UCSB CMS Weekly Status MeetingCMS 4-Hybrid Test System Sam Burke EE UCSB Hybrid Cold Box

4. Slide 4UCSB CMS Weekly Status MeetingCMS 4-Hybrid Test System Sam Burke EE LVDS to CMOS NIM

5. Slide 5UCSB CMS Weekly Status MeetingCMS 4-Hybrid Test System Sam Burke EE LVDS/CMOS Converter INPUTS à 2ea LVDS (from ARC) à 1ea CMOS Enable (from cold box system) OUTPUTS à 2ea 5v CMOS (to Hybrid pulse

6. Slide 6UCSB CMS Weekly Status MeetingCMS 4-Hybrid Test System Sam Burke EE LVDS/CMOS NIM Module

7. Slide 7UCSB CMS Weekly Status MeetingCMS 4-Hybrid Test System Sam Burke EE Cold Box Cover

8. Slide 8UCSB CMS Weekly Status MeetingCMS 4-Hybrid Test System Sam Burke EE Future Plans Seal up remaining air leaks in Cold Box Calibrate UCSB Hybrid Cold Box after sealing à CERN Box is 25min on cooling à CERN Box is 3min on heating Cooling Rate Study à Chiller water temperature –Room Temp / Dew Point / 5 deg C

9. Slide 9UCSB CMS Weekly Status MeetingCMS 4-Hybrid Test System Sam Burke EE Cold Box Air Lock

10. Slide 10UCSB CMS Weekly Status MeetingCMS 4-Hybrid Test System Sam Burke EE Future Plans Verify Air Flow sensor calibration à New FR1005 Air 0.40 L/min*volt +-3% Integrate Cold Box System with 4 Hybrid ARC Stand in Clean Room