Object ID: 00000018WIA30110870GYZ
Topic ID: id_40023558 Version: 1.5
Date: Jul 26, 2022 1:21:02 PM

Primary magnet rundown

About this task

The content in this topic applies to all magnets.

In addition to patient and equipment emergencies, magnetic field emergencies can also occur. Examples of magnetic field emergencies include instances where the presence of the magnetic field may cause injury or harm, if someone is pinned between the magnet and ferromagnetic object or there is a fire in the magnet scan room. All personnel should be familiar with how to respond to magnet emergencies.

Use this procedure to perform an emergency magnet rundown on your system during a magnetic field emergency.

Warning

Personal Injury or Equipment Damage. This emergency magnet rundown procedure may create dangerous situations or damage equipment. Perform this emergency magnet rundown procedure only in emergency situations (such as when a person is trapped between a magnetic object and the magnet). In situations where there is no immediate threat, contact your GE Service Representative for non-emergency rundown procedures.

Step-by-step instructions

Ensure all ventilation systems are on and the scan magnet room door(s) is open.
Follow your facility's emergency protocol and evacuate the patient and all other personnel from the scan magnet room unless they are actively providing first aid to the entrapped person.
Press the Magnet Rundown button located in the scan magnet room or located remotely (if provided), whichever is easiest to access.
- Only activate the Magnet Rundown switch in an emergency situation.
- This results in a rapid reduction of the magnetic field in about two minutes.
- There is a boil-off of cryogens, accompanied by crackling and hissing sounds.
Note: Notify your qualified service representative that a quench occurred.