Title :
Horizontal movement of the storage ring floor at the Photon Factory
Author :
Katsura, Tomotaro ; Nakamura, Hajime ; Kamiya, Yukihide ; Fujita, Yutaka
Author_Institution :
Photon Factory, Nat. Lab. for High Energy Phys., Ibaraki, Japan
Abstract :
At the Photon Factory, the storage ring with an elliptic shape varies its size due to heat generated from many accelerator components and beamline instruments packed in the ring building as well as due to solar irradiation and atmospheric heat. We continuously measured the major axis length of the ring with a laser interferometer, and also measured temperatures at the building roof slab and on two floors of ring tunnel and experimental hall. It was found that the long-term variation in the major axis length is well reproduced by a computer simulation
Keywords :
electron accelerators; length measurement; light interferometry; physics computing; storage rings; Photon Factory; accelerator components; atmospheric heat; beamline instruments; building roof slab temperature; computer simulation; elliptic shape; experimental hall; heat generation; horizontal movement; laser interferometer; long-term variation; major axis length; ring building; ring tunnel; solar irradiation; storage ring floor; Atmospheric measurements; Floors; Instruments; Length measurement; Production facilities; Shape; Solar heating; Solar power generation; Storage rings; Temperature measurement;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.309288
