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4
Shielding
Active Shielding (AS)
Fringe field (axial×radial)
External Interference Shield (E.I.S.)
1. pacemaker safety limit
Magnet cooling system
Refill interval (typical)
Boil-off rate (typical)
Max. helium capacity
Minimum helium level
Cryostat
1. For typical clinical use, depending on sequences and operating time with running helium compressor.
The system needs to be serviced at regular interval. Undisturbed magnet cooling for 24 hours and
7 days a week.
Siemens AG Healthcare Sector
1
1
11/12
th
5
generation active shielding (AS) tech-
nology with counter coils
1
0.5 mT
0.1 mT
Patented shielding system integrated into
the magnet
Continuous compensation and automatic
suppression of external magnetic field
interferences during measurement (caused
by moving ferromagnetic objects or nearby
power lines)
Not applicable
0.0 l/year
approx. 1200 liters
35%
Stainless steel
4.6 m×2.6 m
6.8 m×3.9 m
Technical data
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