Ground Motion Tolerances for the Ssc*

We attempt in this note to make plausibility arguments regarding the magnitude of tolerable ground motions for the SSC. A cornpleat, general and quantitative treatment of every conceivable effect awaits far more effort than could have been marshalled for this preliminary study. This note is in three parts: Section 1. A description of the types of motions likely to be encountered on any site and some generally obvious site recommendations. Section 2. Estimates of the consequences of such motions with calculations of only those few types which we consider dominant in the problem. A review of the type and strength of beam position feedback which may be required. Section 3. A summary of suggested tolerances resulting from the calculations and assumptions made. Submitted for Publication * Work supported by the Department of Energy, contract DE AC03 76SF00515.