Slow ground motion and operation of large colliders

Conference · Thu Jul 01 00:00:00 UTC 1993

OSTI ID:10183177

Parkhomchuk, V V; Shiltsev, V D ^[1]; Stupakov, G V ^[2]

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1. Budker Inst. of Nuclear Physics, Novosibirsk (Russian Federation)
2. Superconducting Super Collider Lab., Dallas, TX (United States)

Slow ground motion with frequencies much less than characteristic frequencies of an accelerator usually has been considered as not seriously affecting machine operation because of assumed complete space and time coherence of the magnet displacements. In this paper, we analyze geophysical and numerous accelerator data on uncorrelated ground motion. We demonstrate that these data in many cases can be approximated by the ``ATL law`` that assumes diffusive wandering of the ground elements. An equation is derived that governs closed orbit distortion caused by random (though correlated) quadrupole displacements in a large circular accelerator. Estimates for the Superconducting Super Collider (SSC) are carried out and compared with the ability of the corrections system to maintain the orbit in the collider.

• Research Organization: Superconducting Super Collider Lab., Dallas, TX (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC35-89ER40486
• OSTI ID: 10183177
• Report Number(s): SSCL-Preprint-470; CONF-930511-356; ON: DE93018757
• Resource Type: Conference paper/presentation
• Conference Information: PAC `93: international particle accelerator conference,Washington, DC (United States),17-20 May 1993
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430100
BEAM BENDING MAGNETS
DESIGN, DEVELOPMENT, AND OPERATION
GROUND MOTION
MECHANICAL VIBRATIONS
OPERATION
QUADRUPOLES
SUPERCONDUCTING SUPER COLLIDER