Mr
Georg Gassner
(SLAC National Accelerator Laboratory)
16/09/2010, 10:50
instrumentation, software and methods
In order to evaluate the performance of the Leica Absolute Tracker AT401 we performed a series of measurements in our underground calibration facility at sector 10 of the SLAC accelerator. The first was a check of the horizontal angle measurement accuracy and the level to gravity feature. The second was to compare the Laser Tracker distance measurements to our interferometer on a 30 m long...
Catherine Le Cocq
(SLAC)
16/09/2010, 11:10
instrumentation, software and methods
This paper compares the three cameras currently available for photogrammetric surveys in the Metrology Department at SLAC. All of them: Nikon D200, Nikon D300 GSI-modified and Alpa12 metric with Phase One Achromatic Plus digital back were tested on a calibration wall using the Australis software. The first part of the paper summarizes these repeatability studies. The second part introduces...
Dr
David Martin
(ESRF)
16/09/2010, 11:30
ground motion, long term monitoring, vibration
In 2008, the Council of the European Synchrotron Radiation Facility (ESRF) launched the ESRF Upgrade Programme 2009-2018, an ambitious ten-year project serving a community of more than 10,000 scientists. Funding for the first phase of the Upgrade (from 2009 to 2015) has been secured to deliver:
- eight new beamlines with capabilities unique in the world;
- refurbishment of many existing...
C. Zhang
(Japan Synchrotron Radiation Research Institute)
16/09/2010, 11:50
ground motion, long term monitoring, vibration
The operation of the SPring-8 was started in July 1997. From thence, the observations of the variations of magnet alignment are executed at regular periods.
This paper concludes twelve years measurements. It is verified that the alignment of the magnets is very stable and the deteriorations were small. And, the deteriorations become estimated after several year observations. Meanwhile,...
