Title :
Alignment issues of the SLC linac accelerating structure
Author :
Seeman, J.T. ; Adolphsen, C. ; Decker, F.J. ; Fischer, G. ; Hodgson, J. ; Pennacchi, R. ; Perkins, C. ; Pietryka, M.
Author_Institution :
SLAC, Stanford, CA, USA
Abstract :
The accelerating structure of the Stanford Linear Collider (SLC) is required to be aligned to 100-200 mu m RMS. Alignment at such a level will reduce transverse wakefield effects sufficiently so that only a small emittance enlargement of the beam is expected during acceleration to 50 GeV with up to 7*10/sup 10/ particles per bunch. The authors describe many aspects of the alignment including global alignment, local alignment, construction of the accelerating cavities, active controls of the structure alignment, external constraints, temperature and airflow effects, and alignment stability.<>
Keywords :
electron accelerators; linear accelerators; SLC linac accelerating structure; Stanford Linear Collider; accelerating cavities; emittance enlargement; global alignment; local alignment; structure alignment; transverse wakefield effects; Acceleration; Calibration; Earthquakes; Laser beams; Linear accelerators; Linear particle accelerator; Particle beams; Structural beams; Telescopes; Temperature control;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.165150
