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

fYear

2007

fDate

22-28 April 2007

Firstpage

8

Lastpage

8

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICONS.2007.28

Filename

4196310