Design, fabrication, and high-gradient testing of an X-band, traveling-wave accelerating structure milled from copper halves

Argyropoulos, Theodoros; Catalan-Lasheras, Nuria; Grudiev, Alexej; Mcmonagle, Gerard; Rodriguez-Castro, Enrique; Syrachev, Igor; Wegner, Rolf; Woolley, Ben; Wuensch, Walter; Zha, Hao; Dolgashev, Valery; Bowden, Gorden; Haase, Andrew; Lucas, Thomas Geoffrey; Volpi, Matteo; Esperante-Pereira, Daniel; Rajamaki, Robin

doi:10.1103/physrevaccelbeams.21.061001

Title: Design, fabrication, and high-gradient testing of an $X$ -band, traveling-wave accelerating structure milled from copper halves

Abstract

A prototype 11.994 GHz, traveling-wave accelerating structure for the Compact Linear Collider has been built, using the novel technique of assembling the structure from milled halves. The use of milled halves has many advantages when compared to a structure made from individual disks. These include the potential for a reduction in cost, because there are fewer parts, as well as a greater freedom in choice of joining technology because there are no rf currents across the halves’ joint. Here we present the rf design and fabrication of the prototype structure, followed by the results of the high-power test and post-test surface analysis. During high-power testing the structure reached an unloaded gradient of 100 MV / m at a rf breakdown rate of less than 1.5×10^–5 breakdowns / pulse / m with a 200 ns pulse. Furthermore, this structure has been designed for the CLIC testing program but construction from halves can be advantageous in a wide variety of applications.

Authors:

Argyropoulos, Theodoros ^[1]; Catalan-Lasheras, Nuria ^[1]; Grudiev, Alexej ^[1]; Mcmonagle, Gerard ^[1]; Rodriguez-Castro, Enrique ^[1]; Syrachev, Igor ^[1]; Wegner, Rolf ^[1]; Woolley, Ben ^[1]; Wuensch, Walter ^[1]; Zha, Hao ^[1]; Dolgashev, Valery ^[2]; Bowden, Gorden ^[2]; Haase, Andrew ^[2]; Lucas, Thomas Geoffrey ^[3]; Volpi, Matteo ^[3]; Esperante-Pereira, Daniel ^[4]; Rajamaki, Robin ^[5]

European Organization for Nuclear Research (CERN), Geneva (Switzerland)
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Univ. of Melbourne, Parkville (Australia)
Instituto de Fisica Corpuscular (IFIC), Valencia (Spain)
Aalto Univ., Espoo (Finland)

Publication Date:: Thu Jun 07 00:00:00 EDT 2018

Research Org.:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1458390

Grant/Contract Number:: AC02-76SF00515

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review Accelerators and Beams

Additional Journal Information:: Journal Volume: 21; Journal Issue: 6; Journal ID: ISSN 2469-9888

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 43 PARTICLE ACCELERATORS

Citation Formats


                    Argyropoulos, Theodoros, Catalan-Lasheras, Nuria, Grudiev, Alexej, Mcmonagle, Gerard, Rodriguez-Castro, Enrique, Syrachev, Igor, Wegner, Rolf, Woolley, Ben, Wuensch, Walter, Zha, Hao, Dolgashev, Valery, Bowden, Gorden, Haase, Andrew, Lucas, Thomas Geoffrey, Volpi, Matteo, Esperante-Pereira, Daniel, and Rajamaki, Robin. Design, fabrication, and high-gradient testing of an X-band, traveling-wave accelerating structure milled from copper halves.  United States: N. p., 2018. 
Web.  doi:10.1103/physrevaccelbeams.21.061001.

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                    Argyropoulos, Theodoros, Catalan-Lasheras, Nuria, Grudiev, Alexej, Mcmonagle, Gerard, Rodriguez-Castro, Enrique, Syrachev, Igor, Wegner, Rolf, Woolley, Ben, Wuensch, Walter, Zha, Hao, Dolgashev, Valery, Bowden, Gorden, Haase, Andrew, Lucas, Thomas Geoffrey, Volpi, Matteo, Esperante-Pereira, Daniel, & Rajamaki, Robin. Design, fabrication, and high-gradient testing of an X-band, traveling-wave accelerating structure milled from copper halves.  United States.  https://doi.org/10.1103/physrevaccelbeams.21.061001

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                    Argyropoulos, Theodoros, Catalan-Lasheras, Nuria, Grudiev, Alexej, Mcmonagle, Gerard, Rodriguez-Castro, Enrique, Syrachev, Igor, Wegner, Rolf, Woolley, Ben, Wuensch, Walter, Zha, Hao, Dolgashev, Valery, Bowden, Gorden, Haase, Andrew, Lucas, Thomas Geoffrey, Volpi, Matteo, Esperante-Pereira, Daniel, and Rajamaki, Robin. Thu .  
"Design, fabrication, and high-gradient testing of an X-band, traveling-wave accelerating structure milled from copper halves".  United States.  https://doi.org/10.1103/physrevaccelbeams.21.061001.  https://www.osti.gov/servlets/purl/1458390.

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@article{osti_1458390,

  title        = {Design, fabrication, and high-gradient testing of an X-band, traveling-wave accelerating structure milled from copper halves},

  author       = {Argyropoulos, Theodoros and Catalan-Lasheras, Nuria and Grudiev, Alexej and Mcmonagle, Gerard and Rodriguez-Castro, Enrique and Syrachev, Igor and Wegner, Rolf and Woolley, Ben and Wuensch, Walter and Zha, Hao and Dolgashev, Valery and Bowden, Gorden and Haase, Andrew and Lucas, Thomas Geoffrey and Volpi, Matteo and Esperante-Pereira, Daniel and Rajamaki, Robin},

  abstractNote = {A prototype 11.994 GHz, traveling-wave accelerating structure for the Compact Linear Collider has been built, using the novel technique of assembling the structure from milled halves. The use of milled halves has many advantages when compared to a structure made from individual disks. These include the potential for a reduction in cost, because there are fewer parts, as well as a greater freedom in choice of joining technology because there are no rf currents across the halves’ joint. Here we present the rf design and fabrication of the prototype structure, followed by the results of the high-power test and post-test surface analysis. During high-power testing the structure reached an unloaded gradient of 100 MV / m at a rf breakdown rate of less than 1.5×10–5 breakdowns / pulse / m with a 200 ns pulse. Furthermore, this structure has been designed for the CLIC testing program but construction from halves can be advantageous in a wide variety of applications.},

  doi          = {10.1103/physrevaccelbeams.21.061001},

  journal      = {Physical Review Accelerators and Beams},

  number       = 6,

  volume       = 21,

  place        = {United States},

  year         = {Thu Jun 07 00:00:00 EDT 2018},

  month        = {Thu Jun 07 00:00:00 EDT 2018}

}

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Works referenced in this record:

Experimental study of rf pulsed heating
journal, April 2011

Laurent, Lisa; Tantawi, Sami; Dolgashev, Valery
Physical Review Special Topics - Accelerators and Beams, Vol. 14, Issue 4
DOI: 10.1103/PhysRevSTAB.14.041001

A Nonresonant Perturbation Theory
journal, February 1966

Steele, C. W.
IEEE Transactions on Microwave Theory and Techniques, Vol. 14, Issue 2
DOI: 10.1109/TMTT.1966.1126168

Works referencing / citing this record:

Design of Planar Millimeter-Wave Metallic Structures for Wakefield Acceleration
journal, October 2018

Zhang, Liang; He, Wenlong; Jamison, Steven
Journal of Infrared, Millimeter, and Terahertz Waves, Vol. 40, Issue 1
DOI: 10.1007/s10762-018-0545-8

Concept Study of a Compact, High Gradient X-band Travelling Wave RF Photogun with Novel Laser Coupling Scheme
preprint, January 2020

Lucas, Thomas Geoffrey; Mutsaers, Peter; Luiten, Jom
arXiv
DOI: 10.48550/arxiv.2009.00270

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Title: Design, fabrication, and high-gradient testing of an X -band, traveling-wave accelerating structure milled from copper halves

Abstract

Citation Formats

Experimental study of rf pulsed heating journal, April 2011

A Nonresonant Perturbation Theory journal, February 1966

Design of Planar Millimeter-Wave Metallic Structures for Wakefield Acceleration journal, October 2018

Concept Study of a Compact, High Gradient X-band Travelling Wave RF Photogun with Novel Laser Coupling Scheme preprint, January 2020

Title: Design, fabrication, and high-gradient testing of an $X$ -band, traveling-wave accelerating structure milled from copper halves

Experimental study of rf pulsed heating
journal, April 2011

A Nonresonant Perturbation Theory
journal, February 1966

Design of Planar Millimeter-Wave Metallic Structures for Wakefield Acceleration
journal, October 2018

Concept Study of a Compact, High Gradient X-band Travelling Wave RF Photogun with Novel Laser Coupling Scheme
preprint, January 2020