SMR-D20-02 Page 7 of 17
Support Pad Levelness The support pad must be level to ensure proper operation of the MRI system. The pad must not exceed .125” deviation in 10’-0”. If the minimum support pads are selected, rather than the recommended single pad, they must also meet this specification. Vehicle Access A firm, level surface is required around the mobile unit to provide access to the tractor/trailer, aid with patient handling, servicing the unit, and delivering of cryogens. Steel Reinforced Concrete Pad Nonferrous reinforcement materials are recommended. If ferrous materials are used, contact the Siemens for the maximum weight allowed per foot. Recommended Attachment to Facility An inflatable air bag or soft seal is recommended at the point of connection from the unit to the facility. Fixed or solid connections may hinder imaging quality. Contact AMST or the local Siemens representative prior to construction if the proposed connection varies from the recommended. Exclusion Zone The helium gas must be allowed to vent, unrestricted, to a non-accessible area, allowing the helium gas to dissipate.
To avoid the risk of injury and cold burns and the possibility of asphyxiation, access to the quench tube must be restricted by 10’ to each side and below, and 20’ vertically above the exit vent. Failure to do so could result in severe personal injury or death. Vehicle Movement
The MRI is very sensitive to vibration and moving metal. Consequently, all vehicle traffic shall be kept as far away as possible from the pad. Moving ferrous materials having the listed masses should be limited to areas as described in Siemens site planning publication. Contact Siemens to obtain the latest version. Vibration / Foundation Design Please contact Siemens for the latest system specific vibration requirements. Swing Clearance Note Please verify the actual dimensions of the rearmost projections on the cab of your tractor to the centerline of tandem suspension or centerline of the fifth wheel plate on your tractor. Refer to Figure 7 Turning Requirements for proper tractor sizing information.
The information contained in this booklet is the property of AMST. The contents are confidential. They may not be used, either partially or wholly, for any purpose inconsistent with the purpose for which it was produced. The contents may not be reproduced or disclosed without written permission of AMST.
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