Superconducting magnet system with pulse tube cooler
First Claim
1. A magnet system having a superconducting magnet disposed in a cryostat, the system comprising:
- a first helium tank disposed in the cryostat, the superconducting magnet being disposed in said first helium tank, said first helium tank containing liquid helium at an operating temperature T1<
3K;
a second helium tank disposed in the cryostat above and in liquid helium communication with said first helium tank, said second helium tank containing liquid helium at an operating temperature T2>
3K; and
a pulse tube cooler, said pulse tube cooler having a cold end disposed in said first helium tank to generate said operating temperature T1<
3K, said pulse tube cooler having a warm end disposed outside of the cryostat, below said first helium tank.
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Accused Products
Abstract
A superconducting magnet system with an operating temperature T1<3K which is disposed in a first helium tank (4) of a cryostat (1), wherein a second helium tank (2) is provided which is connected to the first helium tank (4) and contains liquid helium at an operating temperature T2>3K, wherein a cooling means is provided in the first helium tank (4) which generates an operating temperature T1<3K in that first helium tank (4) is characterized in that the cooling means is the cold end (19) of a pulse tube cooler (11) whose warm end (10) is disposed outside of the cryostat (1). The inventive magnet system minimizes the helium consumption thereby providing continuous measuring operation.
19 Citations
16 Claims
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1. A magnet system having a superconducting magnet disposed in a cryostat, the system comprising:
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a first helium tank disposed in the cryostat, the superconducting magnet being disposed in said first helium tank, said first helium tank containing liquid helium at an operating temperature T1<
3K;
a second helium tank disposed in the cryostat above and in liquid helium communication with said first helium tank, said second helium tank containing liquid helium at an operating temperature T2>
3K; and
a pulse tube cooler, said pulse tube cooler having a cold end disposed in said first helium tank to generate said operating temperature T1<
3K, said pulse tube cooler having a warm end disposed outside of the cryostat, below said first helium tank. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification