RF Interface Display

The RF interface display is located at the outside of the CCM or on top of the preamplifier stack. The display provides information on different tabs to be toggled via touch screen display.

  • Wobble: the wobble tab shows the module name and the corresponding tune/match (wobble) curve. The wobble process can be controlled by the following commands:
    • STOP: Stop the tune/match process.
    • PREV: Go to the previous channel (quadrature and/or double resonant coils).
    • NEXT: Go to the next channel (quadrature and/or double resonant coils).

 

For routine operation, only the »Wobble« tab is relevant for the user. The other tabs contain additional information for service and information purposes.

 

  • Modules: Contains a list of installed preamplifier and active detuning modules. For each module, the name, the current operation mode and the activated RF power limits are displayed. The following operation modes are used in MRI applications:
    • obs: This module is in the observe mode and is used for data acquisition.
    • dec: This (default) mode is indicated for all modules, that are used for transmission only or that are unused.
    • wobb: This mode indicates, that a module is currently used to tune/match a RF coil.
    • crp: This mode indicates, that a module is used in the operation mode for cryogenic cooled RF coils.
    • emStop: This mode indicates, that a module has encountered an emergency stop, i.e. because of power limit violation.

 

  • Devices: Contains a list of all devices detected by the automatic hardware identification system (HWIDS). The enumeration of the HWIDS ports 1 – 8 are related to the following devices that can be :

#1

Socket interface hardware description

permanently connected

#2

RF socket »TX/RX 1H/19F (1)«, red label

depends on connected RF coil

#3

RF socket “RX only”, orange label

depends on connected RF coil

#4

RF socket “TX/RX 1H/19F (2)”, brown label

depends on connected RF coil

#5

RF socket “TX/RX BB”, blue label

depends on connected RF coil

#6

Gradient coil

depends on gradient coil

#7

Shim coil

depends on shim coil

#8

Magnet

permanently connected

#9, 10

Not used in MRI instruments

 

 

  • Service: Information on possible error messages. It contains additional information about the hardware and firmware versions of the preamplifier stack.

 

  • More: Toggles the display tabs Devices and MAS (MAS: magic angle spinning, not used for MRI).