Researches on the Electromagnetic Field in RF Superconducting Cavities

HAO Jian-Kui; HUANG Sen-Lin; ZHU Feng; QUAN Sheng-Wen; ZHAO Kui

Chinese Physics C> 2005, Vol. 29> Issue(8) : 806-809

Researches on the Electromagnetic Field in RF Superconducting Cavities

MOE Key Laboratory of Heavy Ion Physics,Institute of Heavy Ion Physics，Peking University,Beijing 100871,China

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Abstract：
Q-drop phenomenon usually occurs in RF superconducting cavities made from high pure niobium at high field level. This is caused by the enhancement of local magnetic field at the surface of the niobium cavities. To study the electromagnetic performances of the superconducting cavities at high field, a series of experiments are designed with single cell niobium cavity. By the measurements of the peak surface magnetic field of the cavity, the defects in the cavity can be located with special method. Effective treatments can be used to improve the properties of the superconducting cavities.

References

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HAO Jian-Kui, HUANG Sen-Lin, ZHU Feng, QUAN Sheng-Wen and ZHAO Kui. Researches on the Electromagnetic Field in RF Superconducting Cavities[J]. Chinese Physics C, 2005, 29(8): 806-809.

HAO Jian-Kui, HUANG Sen-Lin, ZHU Feng, QUAN Sheng-Wen and ZHAO Kui. Researches on the Electromagnetic Field in RF Superconducting Cavities[J]. Chinese Physics C, 2005, 29(8): 806-809. shu

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Received: 2004-11-25
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

Researches on the Electromagnetic Field in RF Superconducting Cavities

Corresponding author: HAO Jian-Kui,

MOE Key Laboratory of Heavy Ion Physics,Institute of Heavy Ion Physics，Peking University,Beijing 100871,China

Received Date: 2004-11-25

Accepted Date: 1900-01-01

Available Online: 2005-08-05

Abstract: Q-drop phenomenon usually occurs in RF superconducting cavities made from high pure niobium at high field level. This is caused by the enhancement of local magnetic field at the surface of the niobium cavities. To study the electromagnetic performances of the superconducting cavities at high field, a series of experiments are designed with single cell niobium cavity. By the measurements of the peak surface magnetic field of the cavity, the defects in the cavity can be located with special method. Effective treatments can be used to improve the properties of the superconducting cavities.

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Researches on the Electromagnetic Field in RF Superconducting Cavities

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通讯作者: 陈斌, bchen63@163.com

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