1. Frank Hartmann IEKP TEC Meeting July 03 Ring 6 mechanical Qualification In a nutshell: rel. precision agreement (Aa-Ka): 3-5µm (  rot.) abs precision agreement (Aa-Ka): 30-50µm Problems with the zero-positioning! (circle-ellipse-hole!?! in the graphite) One example:

2. Frank Hartmann IEKP TEC Meeting July 03 Circle hole in graphite & bush Round holebush

3. Frank Hartmann IEKP TEC Meeting July 03 Ellipse hole Another focus!

4. Frank Hartmann IEKP TEC Meeting July 03 Ring 4 mechanical qualification 8 R4 modules from Lyon  KA Already measured!  Aachen for crosscheck (Braunschweig yesterday) To mention : 4 sensors are within 10µm vs. rot. 2 sensors are +60µm off vs. rot. 2 sensors are -60µm off vs. rot. –?? 4 sensors/plate 4 in the “middle”, 2 “left”, 2 “right” ??

5. Frank Hartmann IEKP TEC Meeting July 035 pt100 Module Ring 5 (front-back) normal stereo

6. Frank Hartmann IEKP TEC Meeting July 03 Dummy petal assembly KA-dummy-petal-cooling TASK-FORCE

7. Frank Hartmann IEKP TEC Meeting July 03 Ready Detail: bridge IR Leds to inject current to simulate irrad. To investigate cooling at final power consumption! ( =950 & 1050nm) IR Leds

8. Frank Hartmann IEKP TEC Meeting July 03 Cooling tests in Stra

9. Frank Hartmann IEKP TEC Meeting July 03 R7 2 assembled (1 for KA, 1 for Stra) Mechanics: good, stiff, tolerance Si-graphite ~500µm 1st run: no problems All QTC defects found. leakage current @ 3.6µA (250V) 2nd run: 1 NEW PINHOLE leakage current @75µA (250V) 3rd run: 1 ADD. PINHOLE Leakage current @ 400µA (250V)

10. Frank Hartmann IEKP TEC Meeting July 03 R7 prototype 1 in KA – 1 in Stra Known shorts Known pinhole 3rd run: Shorts, pinholes: bonds removed 1st run 3d run Add. Pinhole (see Tonys talk) 350µA (one strip) 70µA (one strip) 1st run

11. Frank Hartmann IEKP TEC Meeting July 03 Strip defects Strip 19, pinhole pop-up @ run 3 Strip current @340µA Strip 105 new pinhole In 2nd run QTC pinhole! QTC short

12. Frank Hartmann IEKP TEC Meeting July 03

13. Frank Hartmann IEKP TEC Meeting July 03 R5 irrad hooked to hybrid all meas @ -12°C Cosmic run Some hot channels flagged