Nitrogen and argon doping of niobium for superconducting radio frequency cavities: a pathway to highly efficient accelerating structures

被引：215

作者：

Grassellino, A. ^{[1
]}

Romanenko, A. ^{[1
]}

Sergatskov, D. ^{[1
]}

Melnychuk, O. ^{[1
]}

Trenikhina, Y. ^{[2
]}

Crawford, A. ^{[1
]}

Rowe, A. ^{[1
]}

Wong, M. ^{[1
]}

Khabiboulline, T. ^{[1
]}

Barkov, F. ^{[1
]}

机构：

[1] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[2] IIT, Chicago, IL 60616 USA

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2013年 / 26卷 / 10期

基金：

美国能源部;

关键词：

SURFACE-RESISTANCE; Q-SLOPE; FIELD; NITRIDE;

D O I：

10.1088/0953-2048/26/10/102001

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report a surface treatment that systematically improves the quality factor of niobium radio frequency cavities beyond the expected limit for niobium. A combination of annealing in a partial pressure of nitrogen or argon gas and subsequent electropolishing of the niobium cavity surface leads to unprecedented low values of the microwave surface resistance, and an improvement in the efficiency of the accelerating structures up to a factor of 3, reducing the cryogenic load of superconducting cavities for both pulsed and continuous duty cycles. The field dependence of the surface resistance is reversed compared to standardly treated niobium.

引用

页数：6

共 33 条

[1] Characterization of superconducting nanometric multilayer samples for superconducting rf applications: First evidence of magnetic screening effect [J].

Antoine, C. Z. ;

Berry, S. ;

Bouat, S. ;

Jacquot, J-F. ;

Villegier, J-C. ;

Lamura, G. ;

Gurevich, A. .

PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, 2010, 13 (12)

[2]

Ballantini R, 1999, P 1999 WORKSH RF SUP

[3]

Bauer P., 2004, TD04014 FERM

[4] REACTIVE DIFFUSION PRODUCED NIOBIUM NITRIDE FILMS FOR SUPERCONDUCTING CAVITY APPLICATIONS [J].

BENVENUTI, C ;

CHIGGIATO, P ;

PARRINI, L ;

RUSSO, R .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1993, 336 (1-2) :16-22

[5] Analysis of the medium field Q-slope in superconducting cavities made of bulk niobium [J].

Ciovati, G. ;

Halbritter, J. .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2006, 441 (1-2) :57-61

[6]

CIOVATI G, 2005, THESIS OLD DOMINION

[7]

Corlett J N, 2012, P IPAC2012 NEW ORL L

[8] Effect of high temperature heat treatments on the quality factor of a large-grain superconducting radio-frequency niobium cavity [J].

Dhakal, P. ;

Ciovati, G. ;

Myneni, G. R. ;

Gray, K. E. ;

Groll, N. ;

Maheshwari, P. ;

McRae, D. M. ;

Pike, R. ;

Proslier, T. ;

Stevie, F. ;

Walsh, R. P. ;

Yang, Q. ;

Zasadzinzki, J. .

PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, 2013, 16 (04)

[9] RF SURFACE-RESISTANCE MEASUREMENTS OF BINARY AND TERNARY NIOBIUM COMPOUNDS [J].

GEMME, G ;

FABBRICATORE, P ;

MUSENICH, R ;

PARODI, R ;

ROSSI, T ;

VIVIANI, M ;

ZHANG, B .

JOURNAL OF APPLIED PHYSICS, 1995, 77 (01) :257-264

[10]

Grassellino A., 2013, ARXIV13052182

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