Chapter 3 Magnet Room
1 Magnet Room Introduction
The Magnet Room is best understood as a series of layers, or “rooms within a room.” Each of
these rooms has a specific function and associated requirements. All requirements in this
chapter must be followed to ensure safe and proper operation of the MR system.
1. The Magnetic shielded room contains the MR Magnet fringe field within a confined space. A
site survey is required to determine magnet shield requirements (not all sites require
magnetic shielding). Because of the added cost of magnetic shielding, room location should
be carefully considered.
2. The Acoustic room is a layer used to help attenuate the noise produced during a scan. An
acoustic engineer is strongly recommended to assess the environment.
3. The RF Shielded room is critical to the proper MR system operation. RF shielding prevents
interaction of external RF radiation with MR system operation and it also prevents MR
system RF radiation from interfering with external systems, such as aircraft control. Special
care must be used when installing all fixtures penetrating the RF shield (e.g., vents,
electrical conduit, penetration panels) to ensure the integrity of the RF shield is maintained.
4. The Finished room includes the wall coverings, ceiling tile, ceiling grid, other fixtures,
Magnet (MAG) and Patient Table (PT). When planning the finished room, ensure the
following:
a. All building codes are met (such as maintaining egress routes)
b. Items which may generate or create RF interference (including florescence lighting) are
not allowed for installation within the Magnet room
c. Customer is responsible for the selection and installation of all locally required safety
devices (e.g., smoke detectors, oxygen monitors, etc.)
d. Ferrous or metallic items which could become projectiles when the magnet is installed
(including wall coverings, ceiling tile, ceiling grid, or other fixtures) are not used or
properly secured
SIGNA Voyager Pre-Installation
Direction 5680008–1EN, Revision 2
Chapter 3 Magnet Room
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