High purity helium gas remains an indispensable resource in magnetic resonance imaging

Helium, high-purity helium

Magnetic resonance imaging is a high-precision medical imaging technique that can capture tiny structures and details inside the body, thereby helping doctors diagnose and treat diseases. In magnetic resonance imaging, high-purity helium gas plays a very important role. As a colorless, odorless, and non flammable gas, high-purity helium can be liquefied and form helium liquid, allowing superconducting magnets to reach the required extremely low temperature, thereby generating a strong magnetic field that enables nuclear magnetic resonance instruments to work.

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Specifically, helium liquid can be encapsulated in superconducting magnets, serving as an important coolant. In the case of liquefied helium, its temperature is close to absolute zero, which means that superconducting magnets cooled with helium liquid can reach very low temperatures and generate very strong magnetic fields. This magnetic field can induce hydrogen atoms in the human body to emit signals, allowing doctors to obtain high-definition images.

However, the usage of high-purity helium gas is crucial for the operation of superconducting magnets. In order to ensure the performance and accuracy of the instrument, helium liquid must be adequately protected and maintained. In recent years, the emergence of some new technologies has led to a reduction in the use of high-purity helium gas. For example, through the design and manufacturing technology of new superconducting magnets, the consumption of helium liquid can be minimized. In addition, some researchers are also exploring alternative cooling media to reduce the dependence on using high-purity helium gas.

Nevertheless, high-purity helium remains an indispensable resource in magnetic resonance imaging. Its outstanding performance and reliability make it widely used in the field of medical diagnosis. In future development, we can expect more innovative technologies and methods to further improve the effectiveness of magnetic resonance imaging and reduce dependence on high-purity helium gas.