1. Collaboration of TE-VSC-SCC with straw-material working group NA62
Coating adherence tests
Permeation results
Surface analysis results
Wil Vollenberg and Delphine Letant-Delrieux
TE-VSC-SCC
NA62 straw working group meeting;
W.V. & D.L.D.

2. SAMPLES FROM: Pilot coating run by FEP:
- Melinex 406; Cu50/AU20: CO A-01
- Melinex 406; Cu100/AU20: CO A-02
Hostaphan RNK 2600; Cu50/AU20: CO A-01
Hostaphan RNK 2600; Cu100/AU20: CO A-02
Coating adherence test at FEP by cross cut test:
Cross cut: 11*11 cuts
Calibrated scotch on it
Pull
Percentage of squares that peels off.
NA62 straw working group meeting;
W.V. & D.L.D.

3. Adherence tests at CERN: cross test and scotch test
Hostaphan
RNK 2600
50 Cu + 20 Au
100 Cu + 20 Au
NA62 straw working group meeting;
W.V. & D.L.D.

4. Adherence tests at CERN: cross test and scotch test
MELINEX 406
100 Cu + 20 Au
50 Cu + 20 Au
NA62 straw working group meeting;
W.V. & D.L.D.

5. Items not yet understood:
Adherence problems at PEF for Melinex ,
at CERN Melinex
AT CERN: Aging of samples:
Melinex : better adherence after aging ??
Tests of aging in controlled conditions:
100 Cu + 20 Au
50 Cu + 20 Au
NA62 straw working group meeting;
W.V. & D.L.D.

6. Adherence tests at CERN: scotch test
Hostaphan RNK Cu + 20 Au
Melinex Cu + 20 Au
NA62 straw working group meeting;
W.V. & D.L.D.

7. Items not yet understood:
Good adherence for Coatings on Hostaphan RNK 2600, independent of thickness / aging conditions
Some unexpected results for adherence of coatings on Melinex 406.
NA62 straw working group meeting;
W.V. & D.L.D.

8. Permeation results
NA62 straw working group meeting;
W.V. & D.L.D.

9. Surface analysis results (XPS)
Uncoated samples coming from rolls coated by Fraunhofer (CA )
NA62 straw working group meeting;
W.V. & D.L.D.

10. Future activities Permeation (Ar and CO2) determination of:
Hostaphan RNK 2600 Cu100/Au20 (ongoing)
Hostaphan RNK 2600 with welding
NA62 straw working group meeting;
W.V. & D.L.D.