Bruker BioSpec 117 AVANCE III, Руководство пользователя

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Planning details
6.4.3 Electrostatic discharge
The MR system does not require any special ESD specifications for the floor coverings in the
different installation areas of the system. The use of floor coverings with conductivity of less than
100 k
Ω hm is recommended to avoid electrostatic discharges.
6.4.4 Seismic safety standards
The MR system can be installed with a seismic safety option and thus allows for installation in
hazardous areas. When installation is completed correctly, seismic safety is verified by statistical
calculations in these cases up to the limit values listed below. Copies of the verified calculations
can be requested from the local Bruker BioSpin MRI office.
The system of protection for the magnet consists of four additional floor anchors that are firmly
anchored to the floor. When running normally, the anchoring device permits authorized decou-
pling from floor vibrations. In the event of an earthquake, it prevents the magnet from moving or
tilting up to the following accelerations:
Maximum underground acceleration with seismic protection
Maximum underground acceleration with seismic protection
Table 6.10: Maximum underground acceleration with seismic protection
If installed in an MR shielded room, the kit T12306 must also be ordered and assembled to avoid
HF radiation. In order to reach these limit values, the floor construction and the construction of
the anchor-age must satisfy the following criteria:
WARNING
Warning of serious injury due to uncontrolled moving objects during an earth-
quake.
If the specifications for installing the MRI system in areas at risk of earthquakes are more
stringent, these must be taken into account during planning and construction:
- Verification of building statistics
- More stringent specifications for the floor construction
- More stringent specifications for floor strength
- Exclusive use of authorized seismic protection of the MR system
Magnet 117/16 USR
maximum acceleration (m/s
2
)
-
Parts number of the basic seismic protection
unit -