The form is also available on-line. Extensive testing of the Accelerator optics and controls systems are continuing during the next week as part of the commissioning process. The transverse beam envelope was investigated to ensure that the beam had at least 0.5 centimeters clearance from the beam centerline at all locations in the Accelerator. A few tight spots were discovered and adjusted in the beam spreader regions where the beam goes from the Linacs to the arcs. The RF phase distribution system was temperature stabilized and is now being referenced to a laser system.
Reproducibility is better than one degree.
The time to tune a cavity was reduced to two minutes per cavity by an automated system. The phasing of the cavities was also automated. Working in the background, the system can do all cavities in a few hours. Over 60 cavities have been processed with high-pulsed peak power in an attempt to reduce field emission and arcing. Virtually all cavities showed reduction of radiation near waveguides.