Magnetic resonance apparatus having a single-circuit cooling circulation system
AssigneeSiemens Aktiengesellschaft
InventorUlrich Nerreter
Life of this patent
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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.
Claims11
A magnetic resonance apparatus having a single-circuit cooling circulation system operated with a coolant for cooling a gradient coil system so that the temperature of at least one surface of the gradient coil system remains within a prescribable temperature range, said cooling circulation system having a dimensioning performance corresponding to an average ohmic dissipated power of the gradient system, the cooling circulation system containing a heat exchanger that can at least be switched on and off, the heat exchanger having a high-frequency on/off switching clock, the gradient coil system having a high average specific heat capacity and the coolant having an operating temperature range proceeding beyond the prescribable temperature range.
Dependencies are inferred from the claim text.