Recommendations for on-site vibration standards
Unless certain common sense precautions are observed, the luminosity of the Collider may be adversely affected by otherwise preventable ground vibrations. Previous work indicates that ground vibrations can be thought of as being caused by the sum of (a) natural and (b) cultural (i.e., man-made) effects, of which the latter can be further divided into uncontrollable and controllable. Examples of category (b) include: traffic, both on site and off site; construction activity on site and off site; assembly of equipment in nearby I.R. Halls, even footsteps in the tunnel; or continuously operating machinery. This note addresses question with respect to category (b) iv., only. As a guide, the order of magnitude of amplitudes and frequencies of presently, (on site) known noise polluters is described in relation to naturally occurring disturbances and to the tolerances required for successful Collider operation. Some methods of mitigating the effects of on site machinery are suggested. Finally, a vibration tolerance level specification is recommended as well as a mechanism to police adherence to such standards. 6 figures.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 7118332
- Report Number(s):
- SLAC-CN-236; ON: DE84011756
- Resource Relation:
- Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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