1. Hans Weise Review Meeting on TESLA Test Facility Phase 2 Introduction Part 2 Hans Weise

2. Status 4/94 250 kV thermionic gun 4 accelerator modules beam dump

3. Hans Weise First discussions about the TTF FEL Spring 1994 First 250 keV beam on 02.04.96

4. Hans Weise 02.06.97

5. Hans Weise TESLA Test Facility Linac Common effort of almost all laboratories using s.c. accelerating cavities, e.g. (CERN), Cornell, DESY, INFN, (KEK), Saclay, TJNL 40 partners from 11 countries More than 75 cavities with gradients up to 35 MV/m

6. Hans Weise

8. 22.02.00 First lasing of the TTF FEL

9. Hans Weise TESLA Test Facility - Operation week 3 / 2002 FEL User Operation week 7 / 2002 Accelerator Studies 100% 80% 60% 40% 20% 35404550510 Beam uptime and operational uptime (users or acc.studies) The TTF Linac was operated 7 days per week, 24 hours. Approx. 50% of the time was allocated to FEL operation including a large percentage of user time. The FEL requires very stable beam conditions. In its different set-ups, approx. 13,000 hours beamtime were achieved since 1997. Based on the TTF experience several FELs using superconducting accelerator technology are proposed. 2001 2002 week

10. Hans Weise ACC6 BYPASS UNDULATOR DUMP COLLIMATOR ACC7 SEED ACC1ACC2ACC3ACC4ACC5RF-GUN BC2BC3e - beam a new RF Gun a new injector conceptInjector 3 three new accelerator modulesACC3 to ACC5 (3*, 4, 5) and later this year another twoACC1 and ACC2 (2*, 1*) another bunch compressorBC3 new beamlinesmore than 150 m a new collimator concepttransv. and energy collim. a long undulator6 modules, 30 m a long bypass and a spectrometer line

11. Hans Weise ACC6 BYPASS UNDULATOR DUMP COLLIMATOR ACC7 SEED ACC1ACC2ACC3ACC4ACC5RF-GUN BC2BC3e - beam Common effort of almost all laboratories using s.c. accelerating cavities, e.g. (CERN), Cornell, DESY, INFN, (KEK), Saclay, TJNL 40 partners from 11 countries And again... Finally well have 48 s.c. cavities at TTF2. This is a great test facility for both the X-FEL and the TESLA LC.

12. Hans Weise

13. Speakers of the next session are... Mr. X Mrs. Y Chair Person to introduce the topics to prepare the disussion to collect the distributions

14. Hans Weise Whats your experience with... Have you ever used... What are your plans concerning... Informal Discussions should be used for the exchange of knowledge / info preparation of discussions reviews and planning

15. Hans Weise Topic 1 Topic 2 other stuff Flipchart to collect topics for the Open Plenary Discussion

16. Hans Weise

20. Welcome My talk is about the most.. Some young and unexperienced speaker need your help! Thanks... un- interesting section of TTF2. Therefore I dont like to talk at all! And my English is so bad. I dont know how to say this. There are so many faces... I dont like to see them! OK! Lets enjoy the TTF2 Meeting.