1. Quality Control (Level 0) for Tail-Catcher Brian Wood University of Illinois Eric Téllez Universidad Nacional Autonoma De Mexico

2. Extrusion Run 07/08/04 Total amount extruded: 676 strips Accepted Scintillator: 218 strips Yield: 32.2% (twenty plus darkened strips)

3. Measured the Width and Thickness

4. Visual Test on Dopant Presence Ultraviolet Lamp (365 and 254 nm)

5. Evaluated all the permissible strips

6. ….continued

7. Width:

8. Thickness:

9. Attenuation Length Measurement Setup

10. Attenuation Length from Random Sampling

11. Number:Batch:L1 (Long) [Excel]: L2 (Short) [Excel]: 1 1 41.3 cm 38.0 cm 101 6 59.9 cm 48.8 cm 121 (dark) 7 69.0 cm 49.3 cm 161 9 64.1 cm 51.4 cm 182 10 31.3 cm 24.1 cm Ref (previous run) - 43.7 cm 24.1 cm

12. Conclusion We made measurements for 218 strips of extruded scintillator during which : We accumulated experience and we currently have a procedure for quality control level 0.