Concept Design of a New Structure of 1.3GHz Single-Cell Superconducting Cavity

Zu Donglin

Chinese Physics C> 1996, Vol. 20> Issue(11) : 1041-1052

Concept Design of a New Structure of 1.3GHz Single-Cell Superconducting Cavity

Zu Donglin ^,

Institute of Heavy Ion Physics, Beijing University, Beijing 100871

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This paper reported a new shape of practicing single-cell superconducting cavities. It consist of the two half end-cell of 9-cell Beijing TESLA shape accelerating cavity. The ratio of the maximal surface electric field to accelerating gradient,E_p/E_acc,of the π-mode of the 9-cell cavity is reduced to 2.024. The cell -to-cell coupling k is high to 1.95%. The E_p/E_acc in the single-cell cavities is reduced to 1.8.The monopole, dipole and quadrupole high-ordermodes, HOM, was calculated with resistance-band model using URMEL-T. In addition, the concept of the structure parameters of niobium cavity was introduced as well as the condition of calculation reliability with codes, URMEL and URMEL-T, was discussed.

References

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Zu Donglin. Concept Design of a New Structure of 1.3GHz Single-Cell Superconducting Cavity[J]. Chinese Physics C, 1996, 20(11): 1041-1052.

Zu Donglin. Concept Design of a New Structure of 1.3GHz Single-Cell Superconducting Cavity[J]. Chinese Physics C, 1996, 20(11): 1041-1052. shu

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Received: 1900-01-01
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

Concept Design of a New Structure of 1.3GHz Single-Cell Superconducting Cavity

Corresponding author: Zu Donglin,

Institute of Heavy Ion Physics, Beijing University, Beijing 100871

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1996-11-05

Abstract: This paper reported a new shape of practicing single-cell superconducting cavities. It consist of the two half end-cell of 9-cell Beijing TESLA shape accelerating cavity. The ratio of the maximal surface electric field to accelerating gradient,E_p/E_acc,of the π-mode of the 9-cell cavity is reduced to 2.024. The cell -to-cell coupling k is high to 1.95%. The E_p/E_acc in the single-cell cavities is reduced to 1.8.The monopole, dipole and quadrupole high-ordermodes, HOM, was calculated with resistance-band model using URMEL-T. In addition, the concept of the structure parameters of niobium cavity was introduced as well as the condition of calculation reliability with codes, URMEL and URMEL-T, was discussed.

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Concept Design of a New Structure of 1.3GHz Single-Cell Superconducting Cavity

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