1. The Lab‘s Status & Future August 2003 – Fermilab - InterActions, Petra Folkerts, DESY Report from DESY, Hamburg, Germany

2. The Lab‘s Status & Future August 2003 – Fermilab - InterActions, Petra Folkerts, DESY DESY‘s 3 Columns Accelerator R&D Work since 1992: superconducting linear accelerator for the TESLA LC and the X-FEL Particle Physics 1000 HEP users at HERA II 3 detectors H1, ZE_US, HERMES (HERA-B finished data acquisition in Febr. this year Synchrotron Radiation Research 2000 SR users in the HASYLAB HAmburg SYnchrotron radiation LAB

3. The Lab‘s Status & Future August 2003 – Fermilab - InterActions, Petra Folkerts, DESY TESLA and X-FEL October 2002 X-FEL Supplement March 2001 5-volume TESLA TDR (LC + X-FEL)

4. The Lab‘s Status & Future August 2003 – Fermilab - InterActions, Petra Folkerts, DESY The Decision 5 February 2003 Decision of the German Federal Research Ministry on Large-Scale Facilities 1) YES to the TESLA XFEL „A new free electron laser is to be built at the DESY research centre in Hamburg. In view of the locational advantage, Germany is prepared to cover half of the investment costs amounting to 673 million. Talks on European cooperation will soon start so that it will be possible to take a decision on construction within about two years. The construction period will be appr. six years.“

5. The Lab‘s Status & Future August 2003 – Fermilab - InterActions, Petra Folkerts, DESY The Decision 2) NOT YET to the TESLA LC „No German site is at present proposed for the TESLA linear accelerator. The reason is that the accelerator project will be an international collaboration. International developments must therefore be taken into account. An independent initiative by Germany concerning the site of the accelerator is neither appropriate nor necessary. DESY will, however, be able to continue its international research work so that German participation in a future global project will be possible.“ (PLUS 120 Mio Eur for PETRA III as a national project )

6. The Lab‘s Status & Future August 2003 – Fermilab - InterActions, Petra Folkerts, DESY The Decision 14 June 2003, Public Science Forum in Hamburg Research Minister Edelgard Bulmahn: “TESLA is not buried – and as well as scientists may have dreams ministers may have dreams. But from the today’s point of view, I never can’t guarantee that TESLA could be realized in 10 years or that there will be a decision on TESLA in 5-6 years.” “With the X-FEL and the PETRA III project DESY’s future is assured for a long time. Both projects are an enormous challenge and DESY enjoys the German government’s confidence of the successful realization of both projects.”

7. The Lab‘s Status & Future August 2003 – Fermilab - InterActions, Petra Folkerts, DESY The Consequence Since June 2003 DESY is on the way to change from a Particle Physics Lab with a strong Synchrotron Radiation Research Department into a Light Source Lab with Particle Physics Groups and activities

8. The Lab‘s Status & Future August 2003 – Fermilab - InterActions, Petra Folkerts, DESY DESY Status HERA II until 2006/07 With 3 detectors No HERA III possible X

9. The Lab‘s Status & Future August 2003 – Fermilab - InterActions, Petra Folkerts, DESY DESY Status Light sources for HASYLAB 43 measurement stations DORIS PETRA (test beam, parasitic)

10. The Lab‘s Status & Future August 2003 – Fermilab - InterActions, Petra Folkerts, DESY DESY Future VUV-FEL from 2004 in operation as a user facility based on the TESLA Test Facility experience with sc TESLA acceleration modules

11. The Lab‘s Status & Future August 2003 – Fermilab - InterActions, Petra Folkerts, DESY DESY Future PETRA III from 2007 rebuilding the HERA injector PETRA II based on the TESLA Test Facility experience with sc TESLA acceleration modules

12. The Lab‘s Status & Future August 2003 – Fermilab - InterActions, Petra Folkerts, DESY European X-FEL Lab Next 2 years: Build-up an European X-FEL Collaboration Preparation of the X-FEL construction approval

13. The Lab‘s Status & Future August 2003 – Fermilab - InterActions, Petra Folkerts, DESY DESY‘s HEP future Data analysis of HERA II … 2010 ? No experiments after 2007 (no HERA III program) e+e- physics and detector R&D for the next LC R&D for TESLA: sc cavities, high gradient (800 GeV) GAN and Grid Participate in the in the LC working groups of ECFA and ICFA

14. The Lab‘s Status & Future August 2003 – Fermilab - InterActions, Petra Folkerts, DESY DESY‘s Outreach future DESY as a light source lab X-FEL promotion Communication of HERA discoveries Outreach for pp: InterActions Collaboration EPOG ELCSG-OSC