Suspension Rod and Magnet Support System

A magnet support system of a magnetic resonance device, comprising:

• a main magnet;
• a thermal shield;
• an outer vacuum chamber;
• and
• a suspension rod configured to suspend the main magnet, the suspension rod comprising:
• a first end;
• a second end;
• and
• a thermal intercept including a thermal link thermally and mechanically coupled to the thermal intercept,
• wherein the thermal intercept is configured to thermally couple the suspension rod to a cold source,
• wherein the thermal intercept is thermally and mechanically coupled to a first section of the suspension rod located between the first end and the second end, and
• wherein the thermal link is spaced from the suspension rod along a second section of the suspension rod located between the thermal intercept and the second end,
• wherein the first end of the suspension rod is mechanically coupled to the main magnet and the second end of the suspension rod is mechanically coupled to an outer wall of the outer vacuum chamber,
• wherein the suspension rod is routed through a passage in the thermal shield,
• wherein the thermal intercept is mechanically coupled to a third section of the suspension rod located between the first end of the suspension rod and the thermal shield, and
• wherein the thermal intercept is mechanically and thermally coupled to the thermal shield via the thermal link.

A magnetic resonance device, comprising:

• a field generator including a magnet support system, comprising:
• a main magnet;
• a thermal shield;
• an outer vacuum chamber;
• and
• a suspension rod configured to suspend the main magnet, the suspension rod comprising:
• a first end;
• a second end;
• and
• a thermal intercept including a thermal link thermally and mechanically coupled to the thermal intercept,
• wherein the thermal intercept is configured to thermally couple the suspension rod to a cold source,
• wherein the thermal intercept is thermally and mechanically coupled to a first section of the suspension rod located between the first end and the second end, and
• wherein the thermal link is spaced from the suspension rod along a second section of the suspension rod located between the thermal intercept and the second end,
• wherein the first end of the suspension rod is mechanically coupled to the main magnet and the second end of the suspension rod is mechanically coupled to an outer wall of the outer vacuum chamber,
• wherein the suspension rod is routed through a passage in the thermal shield,
• wherein the thermal intercept is mechanically coupled to a third section of the suspension rod located between the first end of the suspension rod and the thermal shield, and
• wherein the thermal intercept is mechanically and thermally coupled to the thermal shield via the thermal link;
• and
• a cryocooler,
• wherein the cryocooler is thermally coupled to the main magnet and the thermal shield and is configured to maintain the main magnet and the thermal shield at different temperature levels.