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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Roux, D. |
| Copyright Year | 1993 |
| Description | Author affiliation: Eur. Synchrotron Radiat. Facility, Grenoble, France (Roux, D.) |
| Abstract | In 1987 the ESRF paved the way for a new ambitious accelerator alignment to satisfy demanding and as yet unachieved design specifications. This consists of a permanent realignment of the magnetic elements distributed over the 1 km circumference of the storage ring to an absolute horizontal plane with a precision of /spl plusmn/1 mm. Relative alignment precision is specified at /spl plusmn/0.1 mm between two adjacent elements. Realignment operations are performed in less than one day. In 1989 once laboratory tests confirmed that each of the "Hydrostatic Levelling System" and jack prototypes were capable of achieving the desired results, the series production of the 300 each of HLS and Jacks necessary to align the ESRF storage ring was launched. From April 1991 thru' January 1992 the installation of girders in local mode was made in record time, to which the HLS made a significant contribution. During the so called storage ring "Commissioning Phase" (running from January 92 thru' June 92) the software was written, installed all equipment connected to the control room. Today we would like to present the results of the first storage ring alignment which took place on January 10 1993. Results obtained were ten times better than those stipulated in the specifications and duly confirm that in less than one day it is possible to align a 1 km circumference storage ring with an absolute precision of /spl plusmn/0.1 mm/km and a relative precision between girders greater than 10 /spl mu/m. |
| Starting Page | 2932 |
| Ending Page | 2934 |
| File Size | 353228 |
| Page Count | 3 |
| File Format | |
| ISBN | 0780312031 |
| DOI | 10.1109/PAC.1993.309510 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1993-05-17 |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | High level synthesis Storage rings Lifting equipment Structural beams Thermal sensors Control systems Resistance heating Fasteners Synchrotron radiation Laboratories |
| Content Type | Text |
| Resource Type | Article |
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