Pregled bibliografske jedinice broj: 245417
Dynamic Alignment at SLS
Dynamic Alignment at SLS // Proceedings of the 7th European Particle Accelerator Conference - EPAC 2000
Beč, Austrija, 2000. str. 693-695 (poster, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 245417 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Dynamic Alignment at SLS
Autori
Schlott, Volker ; Kramert, Reinhold ; Rohrer, Martin ; Streun, Andreas ; Wiegand, Peter ; Zelenika, Saša ; Ruland, Robert ; Meier, Edi
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of the 7th European Particle Accelerator Conference - EPAC 2000
/ - , 2000, 693-695
Skup
7th European Particle Accelerator Conference - EPAC 2000
Mjesto i datum
Beč, Austrija, 26.06.2000. - 30.06.2000
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
storage ring; beam based alignment; high-precision
Sažetak
The relative alignment of components in the storage ring of the Swiss Light Source (SLS) is guaranteed by mechanical means. The magnets are rigidly fixed to 48 girders by means of alignment rails with tolerances of less than +/-15 micrometers. The bending magnets, supported by 3 point ball bearings, overlap adjacent girders and thus establish virtual train links between the girders, located near the bending magnet centres. Keeping the distortion of the storage ring geometry within a tolerance of +/-100 micrometers in order to guarantee sufficient dynamic apertures, requires continuous monitoring and correction of the girder locations. Two monitoring systems for the horizontal and the vertical direction will be installed to measure displacements of the train link between girders, which are due to ground settings and temperature effects: the hydrostatic levelling system (HLS) gives an absolute vertical reference, while the horizontal positioning system (HPS), which employs low cost linear encoders wit sub-micron resolution, measures relative horizontal movements. The girder mover system based on five DC motors per girder allows dynamic realignment of the storage ring within a working window of more than +/-1 mm for girder translations and +/-1 mrad for rotations. We will describe both monitoring systems (HLS and HPS) as well as the applied correction scheme based on the girder movers. We also show simulations indicating that beam based girder alignment takes care of most of the static closed orbit correction.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Strojarstvo
