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Straw Material Plans

Straw Material Plans. Reminder: Excell XG 532 no longer prime candidate as metal adhesion to PET was poor. Fraunhofer are investigating samples to better understand the problem. Poor sputtering. Aging of the PET !. Visit to Fraunhofer A visit to Fraunhofer FEP ( Dresden ) was organised.

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Straw Material Plans

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  1. Straw Material Plans Neil Dixon PH/DT CERN 17/05/10

  2. Reminder: • Excell XG 532 no longer prime candidate as metal adhesion to PET was poor. • Fraunhofer are investigating samples to better understand the problem. • Poor sputtering. • Aging of the PET ! Neil Dixon PH/DT CERN 17/05/10

  3. Visit to Fraunhofer A visit to Fraunhofer FEP ( Dresden ) was organised. Fraunhofer are the specialist institute for sputtering. Dates for the next runs have been proposed. June and July, for test runs with samples supplied by CERN. Visit report: https://edms.cern.ch/document/1075080/1 Neil Dixon PH/DT CERN 17/05/10

  4. Material selection : Hostaphan GN 4600 Mitsubishi No longer available Hostaphan GN 4660 Mitsubishi No longer available Hostaphan RNK 2600 Mitsubishi Poor epoxy adhesion Excell XG 532 Toray Saehan Poor metal adhesion Melinex 406 Dupont Metal adhesion to be improved Hi-Fi PMX 726 Hi-Fi Being tested Results of all tests are stored on EDMS: https://edms.cern.ch/document/1073254/1 Status : Neil Dixon PH/DT CERN 17/05/10

  5. Sputtering at CERN and Fraunhofer Epoxy bonding Peel test Ultrasonic welding in JINR Tensile tests of welded seem Permeation tests XPS analysis EM electromicroscope analysis Material qualification tests : Neil Dixon PH/DT CERN 17/05/10

  6. To increase our choice of PET materials, we are investigating a method to improve the bond between the PET and PEI parts of the detector. Results of these tests will be available this week. Other methods are considered. Plasma Blaster : Neil Dixon PH/DT CERN 17/05/10

  7. - Purchase and coating by Fraunhofer of one or two sample rolls in June 2010. - Testing and CERN and JINR. - Preparation of another roll for July, this option will be used depending on results from the June run. Plans : Neil Dixon PH/DT CERN 17/05/10

  8. Progress is difficult. TE/VSC D. Letant-Delrieux, M. Taborelli, W. Vollenberg. EN/MME M. Scheubel, S. Sgobba PH/DT H. Danielsson, N. Dixon JINR S. Movchan. FP/PI D. Gregorio. (purchasing) Conclusion: Neil Dixon PH/DT CERN 17/05/10

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