| მთავარი > CERN Experiments > LHC Experiments > ATLAS > ATLAS Preprints > The control on the deformation of the ATLAS barrel toroid warm structure |
| Article | |
| Title | The control on the deformation of the ATLAS barrel toroid warm structure |
| Author(s) | Bauer, F (CEA Saclay, DAPNIA, Gif sur Yvette, France) ; Foussat, A (CERN) ; Giraud, P F (CEA Saclay, DAPNIA, Gif sur Yvette, France) ; Védrine, P (CEA Saclay, DAPNIA, Gif sur Yvette, France) ; Guyot, C (CEA Saclay, DAPNIA, Gif sur Yvette, France) ; Levesy, B (CEA Saclay, DAPNIA, Gif sur Yvette, France) ; Ponsot, P (CEA Saclay, DAPNIA, Gif sur Yvette, France) ; Schune, P (CEA Saclay, DAPNIA, Gif sur Yvette, France) ; Sun, Z (CEA Saclay, DAPNIA, Gif sur Yvette, France) |
| Publication | 2007 |
| In: | Nucl. Instrum. Methods Phys. Res., A 572 (2007) 145-148 |
| In: | 10th Pisa Meeting on Advanced Detectors : Frontier Detectors For Frontier Physics, La Biodola, Italy, 21 - 27 May 2006, pp.145-148 |
| DOI | 10.1016/j.nima.2006.10.183 |
| Subject category | Detectors and Experimental Techniques |
| Accelerator/Facility, Experiment | CERN LHC ; ATLAS |
| Abstract | The ATLAS barrel toroid warm structure supports the barrel toroid and the muon detectors. The warm structure is about 26 meters long with an outer diameter of 20 meters. In order to ensure the physics performance of the muon detectors, the deformation of the warm structure is minimised during the design phase. The barrel toroid assembly has been carried out in the cavern of the ATLAS experiment since end of 2004. In September 2005, the warm structure has been completely released. The release has been followed-up in real time using optical alignment sensors. Good agreement has been found within 1 mm, between the alignment system measurement, the geometer survey and the predicted values according to the finite element analyses results. |