Patent ID: 9019054
Filing Date: 2015-04-28
Classification: H01F

Abstract:
1. A magnet apparatus comprising: a first vacuum chamber; a second vacuum chamber; a first magnet disposed within the first vacuum chamber such that the first magnet is thermally isolatable from the exterior of the first vacuum chamber; a load connector extending from the first vacuum chamber into the second vacuum chamber so that a load on the first magnet is transferable to the second vacuum chamber, wherein the load connector is in thermal contact with the first magnet and is thermally isolatable from the exterior of the first vacuum chamber and the exterior of the second vacuum chamber, wherein the first vacuum chamber comprises a first sealing arrangement through which the load connector extends and the second vacuum chamber comprises a second sealing arrangement through which the load connector extends, and wherein a third vacuum chamber disposed between the first vacuum chamber and the second vacuum chamber is formed between the first and second sealing arrangements and sealed from the first and second vacuum chambers by the first and second sealing arrangements, wherein the first sealing arrangement comprises a flexible thermally insulating coupling provided between the load connector and an inner wall of the first vacuum chamber, and the second sealing arrangement comprises a flexible thermally insulating coupling provided between the load connector and an inner wall of the second vacuum chamber.