Output channels
Digital Resolution
Total output
Maximum current output
Maximum voltage output
AC Power
Cooling System
Setup Control
Operating Control
Analog Input
Thermal Stability
DC offset trim
Load Limits
Regulatory Approval
Dimensions
About the MXD Series
The MXD series shim power amplifier enables shimming of MRI magnets under static and dynamic shim updating and real time shimming on multiple slices, voxels or regions of interest with simultaneous compensation of shim induced eddy currents.
OEM and Pre-Clinical Applications
5 A @ 24 V DC and 70 V AC
+/-20A or +/-40A
16 bit
 8 or16
5A per channel, capable of parallel operation
DC compliance +/-24V AC compliance +/-70V
115 or 230 VAC, 50/60 Hz
Forced air
RS-232
Customer specific (RS-232, Ethernet, USB, CAN,)
+/- 5V or +/- 10 V differential
50 ppm/degree C
+/- 1%
2-4.8 ohm, 0-20 mH
UL/EN/IEC/CSA C22.2 60601
19 x 3U x 550 mm (22)
Real-time Ready
Real Time Shimming
             (RTS)
Dynamic Shim Update
              (DSU)
Eddy Current Compensation (ECC)
Ability to change shim current
values instantaneously
Process allowing synchronous change of shim currents as
required by the imaging sequence
Modification of shim currents for correction of time dependent field changes after a current change
The Challenge:

To provide a stable current source with high output compliance for control of multiple shim channels in a modern MRI system.

To ensure stable operation in the presence of large voltages induced in the shim coils.

To have flexible digital and analog control from the MRI console for static and dynamic operation.
MXD Series
MXB-6 Shim Power Supply
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