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Chapter 12
Fiber Optic Temperature
Overview
Fiber optic temperature probes provide an alternative method to thermister temperature
probes for measuring temperature in the MR environment. Fiber optic probes are not
affected by the strong RF and magnetic fields of the MR scanner.
They can not
contribute to RF heating and they do not produce an artifact in MR images.
Components and connections
There are 2 configurations for the Fiber Optic Temperature Module. One is shown
above with large LEDs and buttons. This configuration can operate as a module with
PC-sam or it can operate in standalone mode to control a Heater System. The other
configuration has no LEDs or buttons and can only operate as a module with PC-sam.
Both configurations use the same fiber optic temperature sensors and connect to the
ERT Control/Gating Module and other optional modules in the same way.
Both
configurations can have up to 4 channels of fiber optic temperature.
The Fiber Optic Temperature Module is located next to the magnet bore and near the
IBP Module or other optional modules. One or more fiber optic temperature probes
extend into the bore and attach to the animal. The module sends and receives data
along with other optional modules to and from the ERT Control/Gating Module using
Revision C, August 2013
12-1
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