Observations of Random Walk of the Ground In Space and Time

Journal Article · Fri Jan 01 00:00:00 EST 2010 · Phys.Rev.Lett.104:238501,2010

DOI:https://doi.org/10.1103/PhysRevLett.104.238501· OSTI ID:982863

Shiltsev, Vladimir

We present results of micron-resolution measurements of the ground motions in large particle accelerators over the range of spatial scales L from several meters to tens of km and time intervals T from minutes to several years and show that in addition to systematic changes due to tides or slow drifts, there is a stochastic component which has a 'random-walk' character both in time and in space. The measured mean square of the relative displacement of ground elements scales as dY{sup 2} {approx} ATL over broad range of the intervals, and the site dependent constant A is of the order of 10{sup -5{+-}1} {micro}m{sup 2}/(s{center_dot}m).

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 982863
• Report Number(s): FERMILAB-PUB-10-188-APC; PRLTAO; TRN: US1004319
• Journal Information: Phys.Rev.Lett.104:238501,2010, Vol. 104; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATORS
GROUND MOTION
METERS
Accelerators
Other