1. Highlights from LINAC 12 in Tel Aviv, Israel Jürgen Pfingstner Alexander Gerbershagen

2. Content Alexander Organisation and program of the conference Student poster session Presentations and posters to the topics of – Colliders – Technologies relevant for CLIC Jürgen – Light sources – Proton and Ion Accelerators – New Developments

3. Organisation

4. 9th (Sun) to 14th (Fri) September Dan Panorama hotel 300+ participants 30 companies Very well organized – Good timing of sessions (starting on time, no delays) – Coffee breaks and lunches, hence lots of communication

5. Program Sunday – Student poster session, reception Mon, Tue, Thu – Morning and afternoon presentations – 1 hour of oral posters, 5 min. each – 2 hours poster session Wed – Morning presentations – Outing to Jerusalem Fri – Morning presentations

6. Student poster session

7. “On-line Dispersion-free Steering for the Main Linac of CLIC” by Jürgen “Specifications of the Distributed Timing System for the CLIC Main Linac” by Alexander Student poster session winner: “First Demonstration of Optical Frequency Shot-noise Suppression in Relativistic Electron-beams” by A.Nause (University of Tel-Aviv) – collective Coulomb interaction between the electrons of a cold intense beam during beam drift – beam charge homogenizes due to the collective interaction, and its distribution becomes sub-Poissonian – measure sub-linear growth as a function of current of the optical transition radiation

8. Presentations and posters

9. Colliders: CLIC Talks – “Status and Future of the CLIC Study” by Roberto Corsini – “RF power production at the two beam test stand at CERN” by Igor Syratchev Posters – “Recent improvements to the Control of the CTF3 High-current Drive Beam” by B. Constance – “Status and Results of the CLIC Decelerator Demonstration in the CLIC Test Facility” by S. Döbert – “Precise Stabilization of the Drive Beam Intensity for Advanced CLIC Studies in CTF3” by A.Dubrovskiy – “Detailed Analysis of Long-Range Wakefield in the Baseline Design of the CLIC Main Linac” by V. F. Khan – “Failure Tolerance Studies in the CLIC Main Linac and Beam Delivery System” by C.O. Maidana – “Normal Conducting Deflecting Cavity Development at the Cockcroft Institute” by G. Burt – investigating the effect of the couplers on beamloading and on the wakefields

10. Colliders: ILC Talks – “Status of ILC” by Akira Yamamoto (KEK) – “Results achieved by the S1-Global Collaboration for ILC” by Hitoshi Hayano (KEK) Posters – “Development of Permanent Magnet Focusing System for Klystrons” by Y. Fuwa (Kyoto University) – “ILC RF Development Summary” by C. Adolphsen (SLAC) – “Waveguide System R&D for the ILC Klystron Cluster Scheme” by C.D. Nantista (SLAC) – “LLRF Automation for the 9mA ILC Tests at FLASH” by J. Branlard (DESY) automatic detection of cavity quenches automatic adjustment of the superconducting cavity quality factor automatic compensation of detuning due to Lorentz forces Also Hadron-Lepton Collider

11. Technologies relevant for CLIC “Synchronization of Accelerator Sub-systems with Ultimate Precision” by H. Schlarb (DESY) “Solid State Marx Modulators for Emerging Applications - CLIC, ESS, ILC & Project X” – M.A. Kemp (SLAC) “Advances in Beam Tests of Dielectric-based Accelerating Structures” by A. Kanareykin (Euclid TechLabs, LLC) – diamond based accelerating structures – Beam passes through a rectangular diamond loaded resonator and induces an intense wakefield – fields up to 0.3 GV/m