Abstract: Efficient gradient cable monitoring is enabled by a device and a method to determine a failure in at least one gradient coil of a magnetic resonance tomography system with gradient cables supplying current thereto, wherein the difference of at least one electrical current flowing through a gradient cable to a gradient coil and at least one electrical current flowing through a gradient cable away from a gradient coil is determined. A failure of a gradient cable is assumed if the absolute value of the difference exceeds a limit value.

Abstract: Efficient gradient cable monitoring is enabled by a device and a method to determine a failure in at least one gradient coil of a magnetic resonance tomography system with gradient cables supplying current thereto, wherein the difference of at least one electrical current flowing through a gradient cable to a gradient coil and at least one electrical current flowing through a gradient cable away from a gradient coil is determined. A failure of a gradient cable is assumed if the absolute value of the difference exceeds a limit value.

Abstract: The invention relates to the use of a water-soluble paramagnetic substance, in particular a magnetic resonance contrast medium, to reduce the magnetic resonance relaxation time of a coolant for magnetic resonance systems. Furthermore the invention relates to a corresponding method for reducing the magnetic resonance relaxation time of a coolant.

Abstract: Use of a water-soluble paramagnetic substance to reduce the relaxation time of a coolant and corresponding method The invention relates to the use of a water-soluble paramagnetic substance, in particular a magnetic resonance contrast medium, to reduce the magnetic resonance relaxation time of a coolant for magnetic resonance systems. Furthermore the invention relates to a corresponding method for reducing the magnetic resonance relaxation time of a coolant.

Abstract: In a method for giving a biocidal property to a coolant in a fluid cooling circulation, the fluid cooling circulation has at least one device that exhibits at least one metal oxide that is in contact with the coolant, the coolant has a substance added to it that causes an acidic pH value of the coolant, at least for a time, and as a result of the acidic pH value of the coolant, metal ions are released from the metal oxide, these metal ions giving the coolant the biocidal property.

Abstract: A magnetic resonance apparatus having a single-circuit cooling circulation system operated with a coolant for cooling a gradient coil system so that a temperature of at least one surface of the gradient coil system remains within a prescribable temperature range. The cooling circulation system has a performance that corresponds to the average ohmic dissipated power of the gradient coil system, contains a heat exchanger that can be at least switched on and off and exhibits a high-frequency on/off switching clock. The gradient system exhibits a high average specific heat capacity and the cooling fluid exhibits an operating temperature range that proceeds beyond the prescribable temperature range.

Abstract: In a method for giving a biocidal property to a coolant in a fluid cooling circulation, the fluid cooling circulation has at least one device that exhibits at least one metal oxide that is in contact with the coolant, the coolant has a substance added to it that causes an acidic pH value of the coolant, at least for a time, and as a result of the acidic pH value of the coolant, metal ions are released from the metal oxide, these metal ions giving the coolant the biocidal property.

Abstract: A magnetic resonance apparatus having a single-circuit cooling circulation system operated with a coolant for cooling a gradient coil system so that a temperature of at least one surface of the gradient coil system remains within a prescribable temperature range. The cooling circulation system has a performance that corresponds to the average ohmic dissipated power of the gradient coil system, contains a heat exchanger that can be at least switched on and off and exhibits a high-frequency on/off switching clock. The gradient system exhibits a high average specific heat capacity and the cooling fluid exhibits an operating temperature range that proceeds beyond the prescribable temperature range.