LHe container

1. The structure and material of the liquid helium tank

Liquid helium tanks are generally composed of inner tanks, outer tanks, assembly brackets, piping systems, control systems and other components.

There is a certain gap between the inner tank and the outer tank, which is called the spacer layer.The spacer layer is usually filled with a certain amount of insulating material to reduce the evaporation of liquid helium and the influence of external heat.

At present, liquid helium tanks are mainly made of materials such as stainless steel or aluminum alloy.These materials have good oxidation resistance and corrosion resistance, which can ensure the sealing of the inner tank and the storage quality of liquid helium.

2. Application of liquid helium tanks

Liquid helium tanks are mainly used in the following fields：

1. Superconducting magnetic resonance imaging: In the field of MRI, liquid helium tanks are used to store the superconducting magnets of MRI equipment and maintain their low temperature to provide high-quality MRI images.
2. Nuclear magnetic resonance spectroscopy: In the field of NMR, liquid helium tanks are used to store samples for nuclear magnetic resonance experiments to ensure the stability and accuracy of the experimental process.
3. Particle accelerator: In the field of particle physics, liquid helium tanks are used to store superconducting solenoid tubes to generate a strong magnetic field and promote the operation of particle accelerators.

At the same time, liquid helium tanks are also widely used in aerospace, scientific research experiments, medical and health care and other fields.