MRI magnet ramping service
MRI ramping is the controlled process of increasing the magnetic field until the magnet reaches its operational strength. This procedure must be performed carefully to prevent quench events, equipment damage, or system instability. Rumo Tech provides safe and monitored ramping for GE, Siemens and Philips MRI systems.
When does an MRI require ramping?
An MRI requires ramping whenever the magnet has been ramped down, lost field strength, or is being activated after installation. Facilities often notice the system is fully powered but unable to scan because the magnet field is below operational level. The console may indicate magnet standby state, ramp status messages, or incomplete system initialization. In other situations, the scanner appears operational but calibration sequences fail because the required magnetic field strength has not been reached.R amping is also necessary after certain repairs involving cryogenics, magnet components or after transportation of the system.
Situations That Require MRI Magnet Ramping
Ramping is not a failure — it is a recovery and activation procedure. However, it becomes necessary after several specific conditions.
- After a quench
- Before transport
- After transport
- Before cryogenic service
- After cryogenic service
- System installation
Our MRI Ramping Procedure
After ramping, we verify magnet stability and confirm the system is ready for manufacturer calibration procedures and imaging operation. We also evaluate whether additional services such as helium refill or shimming adjustment are required.
Step 1 — Pre-Ramp Evaluation and Safety Checks
We verify cryogenic conditions, helium level, magnet temperature, and electrical supply stability. The system must be within safe parameters before increasing current in the superconducting coils.
Step 2 — Controlled Field Increase and Monitoring
The magnetic field is increased gradually using a magnet power supply while monitoring voltage, current behavior and system stability. Once nominal field strength is reached, the system is stabilized and prepared for calibration.
MRI systems and platforms we service
Our engineers support a wide range of superconducting MRI systems. Below are some of the platforms we frequently service.
Siemens
- Siemens Magnetom Altea
- Siemens Magnetom Aera
- Siemens Magnetom Amira
- Siemens Magnetom Avanto
- Siemens Magnetom C!
- Siemens Magnetom Espree
- Siemens Magnetom Essenza
- Siemens Magnetom Sempra
- Siemens Magnetom Skyra
- Siemens Magnetom Sola
- Siemens Magnetom Symphony
- Siemens Magnetom Verio
GE Healthcare
- Signa HDxt
- Signa Excite
- Signa Voyager
- Signa Creator
- Optima MR360
- Optima MR450w
- Signa Brivo
- Discovery MR750
- Signa Architect
Philips
- Intera
- Achieva
- Multiva
- Ingenia
Not every MRI that won’t needs ramping
An MRI system may appear inactive even when the magnet field is already at operational strength. In many situations the scanner fails to start exams due to cryogenic, calibration, or configuration conditions rather than a low magnetic field.
What happens if ramping is performed incorrectly?
Unresolved magnetic field instability affects clinical reliability, workflow efficiency and operational performance.
Quench risk
Increasing magnet current too quickly can cause loss of superconductivity and a quench event.
Component stress
Improper ramping may stress coils, connections and cryogenic components, leading to future failures.
Extended downtime
A failed ramping procedure may require cooldown and recovery, delaying system availability.
Request a ramping evaluation
If your MRI system has been ramped down, relocated, or recovered from a quench, do not attempt activation without evaluation.
Response typically within one business day.