Chinese Physics C > 2013, Vol. 37 > Issue(9): 098201 DOI: 10.1088/1674-1137/37/9/098201

Study of magnetic field expansion using a plasma generator for space radiation active protection

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Abstract：
There are many active protecting methods including Electrostatic Fields, Confined Magnetic Field, Unconfined Magnetic Field and Plasma Shielding etc. for defending the high-energy solar particle events (SPE) and Galactic Cosmic Rays (GCR) in deep space exploration. The concept of using cold plasma to expand a magnetic field is the best one of all possible methods so far. The magnetic field expansion caused by plasma can improve its protective efficiency of space particles. One kind of plasma generator has been developed and installed into the cylindrical permanent magnet in the eccentric. A plasma stream is produced using a helical-shaped antenna driven by a radio-frequency (RF) power supply of 13.56 MHz, which exits from both sides of the magnet and makes the magnetic field expand on one side. The discharging belts phenomenon is similar to the Earth's radiation belt, but the mechanism has yet to be understood. A magnetic probe is used to measure the magnetic field expansion distributions, and the results indicate that the magnetic field intensity increases under higher increments of the discharge power.

References

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JIA Xiang-Hong, JIA Shao-Xia, XU Feng, BAI Yan-Qiang, WAN Jun, LIU Hong-Tao, JIANG Rui, MA Hong-Bo and WANG Shou-Guo. Study of magnetic field expansion using a plasma generator for space radiation active protection[J]. Chinese Physics C, 2013, 37(9): 098201. doi: 10.1088/1674-1137/37/9/098201

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Received: 2012-05-11
Revised: 1900-01-01

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通讯作者:陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Study of magnetic field expansion using a plasma generator for space radiation active protection

Corresponding author:JIA Xiang-Hong,

Corresponding author:WANG Shou-Guo,

Received Date:2012-05-11

Accepted Date:1900-01-01

Available Online:2013-09-05

Abstract:There are many active protecting methods including Electrostatic Fields, Confined Magnetic Field, Unconfined Magnetic Field and Plasma Shielding etc. for defending the high-energy solar particle events (SPE) and Galactic Cosmic Rays (GCR) in deep space exploration. The concept of using cold plasma to expand a magnetic field is the best one of all possible methods so far. The magnetic field expansion caused by plasma can improve its protective efficiency of space particles. One kind of plasma generator has been developed and installed into the cylindrical permanent magnet in the eccentric. A plasma stream is produced using a helical-shaped antenna driven by a radio-frequency (RF) power supply of 13.56 MHz, which exits from both sides of the magnet and makes the magnetic field expand on one side. The discharging belts phenomenon is similar to the Earth's radiation belt, but the mechanism has yet to be understood. A magnetic probe is used to measure the magnetic field expansion distributions, and the results indicate that the magnetic field intensity increases under higher increments of the discharge power.

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Study of magnetic field expansion using a plasma generator for space radiation active protection

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