Title :
Gradient Coils Temperature Controller in a Gradient System for MR Tomography
Author :
Bartusek, Karel ; Dokoupil, Zdenek ; Gescheidtova, Eva ; Smekal, Zdenek
Author_Institution :
Acad. of Sci. of the Czech Republic, Brno
Abstract :
A simple gradient coils temperature controller for a gradient magnetic field system has been developed. In the application of modern fast magnetic resonance experiments it can maintain the temperature of gradient coils at a value of 21.2degC with a precision of 0.5degC and protect the gradient system against overloading by excessive short-circuit power. When the temperature and the maximum power are exceeded, it will disconnect all gradients and, simultaneously, signal this state to the operator. A gradient system complemented like this has been experimentally verified on a home-built 200 MHz magnetic resonance (MR) tomography system with a 120 mm bore (with room temperature) in the Institute of Scientific Instruments, Academy of Sciences of the Czech Republic.
Keywords :
biomedical MRI; coils; temperature control; MR tomography; frequency 200 MHz; gradient coils; gradient magnetic field system; magnetic resonance tomography; size 120 mm; temperature 21.2 degC; temperature 293 K to 298 K; temperature controller; Coils; Communication system control; Control systems; Instruments; Magnetic field measurement; Magnetic fields; Magnetic resonance; Pulse generation; Temperature control; Tomography;
Conference_Titel :
Systems, 2007. ICONS '07. Second International Conference on
Conference_Location :
Martinique
Print_ISBN :
0-7695-2807-4
Electronic_ISBN :
0-7695-2807-4
DOI :
10.1109/ICONS.2007.28
