激情综合色综合啪啪开心,亚洲国产AV美女网站,亚洲国产一二三精品无码蜜臀,国产成人精品国内自产拍免费看

Successful Testing of 90-Degree Superconducting Dipole Magnet with Supercritical Helium External Cooling

2020-06-24 01:34:43

Recently, a joint project between HFCIM and the Institute of Plasma Physics, Chinese Academy of Sciences achieved a successful test of a 90-degree superconducting dipole magnet, marking the first large-scale saddle-shaped superconducting dipole magnet in China to utilize supercritical helium external cooling. The project team innovatively designed a low-temperature system using supercritical helium forced one-way circulation for external cooling, laying the foundation for the development of small-scale low-temperature helium gas circulation independent systems. This ensures the low-temperature stability of the superconducting dipole magnet during rotation, achieving fast cooling under high vacuum, cost-effective rotation, and rapid and versatile excitation functions.

fig.1 Superconducting Dipole Magnet Low-Temperature Test Data

The supercritical helium forced one-way circulation external cooling low-temperature system exhibits significant advantages by ensuring there is no helium accumulation in the cooling channels. Additionally, the choice of operating temperature is not restricted by the helium boiling point. This design prevents the generation of large amounts of helium during magnet quenching, eliminating the pressure safety hazards associated with a significant increase in internal pressure within the coil box during the rotation of a liquid helium-immersed superconducting magnet. As a result, the operational stability of the superconducting dipole magnet is greatly enhanced.

fig2. (a)Testing Site (b)Superconducting Coil

fig.3 3-D Diagram of Superconducting Rotational Gantry System 

Currently, the 90-degree superconducting dipole magnet is used in the rotation gantry system of proton therapy devices. Its successful development enables a 46% reduction in the overall weight of the rotation gantry and a 40% reduction in the overall external dimensions. This achievement plays a significant role in promoting the lightweight and miniaturization of the rotation gantry system, and the successful experience gained can be applied not only to the development of proton medical devices but also holds crucial application value in areas such as synchrotrons.

Based upon the successful development of the 90-degree superconducting dipole magnet, HFCIM team will further advance the engineering technology of superconducting dipole magnets. This progress aims to pave the way for capturing the international market in high-end medical devices and promoting the industrial development of advanced and compact proton therapy devices, thereby accumulating the necessary technological foundation for the future.

 


Go back to the previous page
三穗县| 永登县| 依兰县| 合山市| 新密市| 拜泉县| 元氏县| 博乐市| 山丹县| 哈密市| 文化| 河曲县| 大丰市| 依安县| 张掖市| 诸暨市| 虹口区| 萝北县| 巴塘县| 天门市| 青阳县| 扎赉特旗| 收藏| 察隅县| 公安县| 金华市| 揭阳市| 肥东县| 毕节市| 文登市| 涿鹿县| 资阳市| 遂昌县| 开封县| 江北区| 湖口县| 利川市| 潼南县| 边坝县| 太湖县| 荥阳市|