Final Focus Test Beam Collaboration Meeting,Stanford, California, February 26-28, 1992
The Collaboration met at SLAC for three days February 26th-28th, 1992 to review progress on development and installation of the FFTB beamline and its related systems, and to discuss goals for initial running with beams. Sessions on the first day concentrated on design and fabrication of magnets, and on the job of mechanically aligning and stabilizing the locations of beamline elements. These efforts require considerable coordination between segments of the Collaboration with magnets built in Russia and Japan, magnet movers built in Germany and Japan, and alignment techniques and hardware developed in the U.S. and Germany. A complete session was devoted to review the status of the instrumentation for the beamline. An important piece of work, done during the meeting by K.Oide of KEK, suggested that it would be possible to adjust the focal length of the system over an extended range without undue increase in spot size. This has since been confirmed, and will allow the Orsay Spot Monitor and the Laser-Compton Monitor to be installed and tested during the initial commissioning with beams. Reports were made on refinements to the optical lattice and progress in development of tuning algorithms for the beamline. Experience and prospects for obtaining the desired beam emittance from the SLAC linac were discussed, and initial studies of beam through the launch section of the FFTB were reported. These have provided first experience with the magnet movers and beam position monitors that will be used throughout the beamline. The Collaboration discussed the schedule for completion of the project and goals for the first tests of the system with beam. We expect final installations to occur late this year and checkout of the system to continue through the first months of 1993. It was recognized that extensive tests of the alignment systems and magnet positioning devices without beam will be possible. It was also seen that there is much testing of the thermal and mechanical stability of the beamline and electronics housings to do. Questions identified to be addressed with first beams included tests and calibration of beam position monitors, wire scanners and spot-size monitors, and alignment of magnetic elements with beam-based techniques. The business of the week was accompanied by a tour of the FFTB facility and by opportunities for members of the Collaboration to find time to meet informally with each other. It was decided that the next meeting of the FFTB Collaboration will be held at the LC92 Conference in Garmisch Partenkirchen in July of this year.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 878396
- Report Number(s):
- SLAC-WP-066; TRN: US0700248
- Country of Publication:
- United States
- Language:
- English
Similar Records
A Project to Design and Build the Magnets for a New Test Beamline, the ATF2, at KEK
Beam-based alignment of the final focus test beam