Experimental measurements of rf breakdowns and deflecting gradients in mm-wave metallic accelerating structures
Abstract
We present an experimental study of a high-gradient metallic accelerating structure at sub-THz frequencies, where we investigated the physics of rf breakdowns. Wakefields in the structure were excited by an ultrarelativistic electron beam. We present the first quantitative measurements of gradients and metal vacuum rf breakdowns in sub-THz accelerating cavities. When the beam travels off axis, a deflecting field is induced in addition to the longitudinal field. We measured the deflecting forces by observing the displacement and changes in the shape of the electron bunch. This behavior can be exploited for subfemtosecond beam diagnostics.
- Authors:
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1250615
- Alternate Identifier(s):
- OSTI ID: 1255513
- Report Number(s):
- SLAC-PUB-16539
Journal ID: ISSN 2469-9888; PRABFM; 051302
- Grant/Contract Number:
- AC02-76SF00515
- Resource Type:
- Journal Article: Published Article
- Journal Name:
- Physical Review Accelerators and Beams
- Additional Journal Information:
- Journal Volume: 19; Journal Issue: 5; Journal ID: ISSN 2469-9888
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; accelerators; ACCPHY
Citation Formats
Dal Forno, Massimo, Dolgashev, Valery, Bowden, Gordon, Clarke, Christine, Hogan, Mark, McCormick, Doug, Novokhatski, Alexander, Spataro, Bruno, Weathersby, Stephen, and Tantawi, Sami G. Experimental measurements of rf breakdowns and deflecting gradients in mm-wave metallic accelerating structures. United States: N. p., 2016.
Web. doi:10.1103/PhysRevAccelBeams.19.051302.
Dal Forno, Massimo, Dolgashev, Valery, Bowden, Gordon, Clarke, Christine, Hogan, Mark, McCormick, Doug, Novokhatski, Alexander, Spataro, Bruno, Weathersby, Stephen, & Tantawi, Sami G. Experimental measurements of rf breakdowns and deflecting gradients in mm-wave metallic accelerating structures. United States. https://doi.org/10.1103/PhysRevAccelBeams.19.051302
Dal Forno, Massimo, Dolgashev, Valery, Bowden, Gordon, Clarke, Christine, Hogan, Mark, McCormick, Doug, Novokhatski, Alexander, Spataro, Bruno, Weathersby, Stephen, and Tantawi, Sami G. 2016.
"Experimental measurements of rf breakdowns and deflecting gradients in mm-wave metallic accelerating structures". United States. https://doi.org/10.1103/PhysRevAccelBeams.19.051302.
@article{osti_1250615,
title = {Experimental measurements of rf breakdowns and deflecting gradients in mm-wave metallic accelerating structures},
author = {Dal Forno, Massimo and Dolgashev, Valery and Bowden, Gordon and Clarke, Christine and Hogan, Mark and McCormick, Doug and Novokhatski, Alexander and Spataro, Bruno and Weathersby, Stephen and Tantawi, Sami G.},
abstractNote = {We present an experimental study of a high-gradient metallic accelerating structure at sub-THz frequencies, where we investigated the physics of rf breakdowns. Wakefields in the structure were excited by an ultrarelativistic electron beam. We present the first quantitative measurements of gradients and metal vacuum rf breakdowns in sub-THz accelerating cavities. When the beam travels off axis, a deflecting field is induced in addition to the longitudinal field. We measured the deflecting forces by observing the displacement and changes in the shape of the electron bunch. This behavior can be exploited for subfemtosecond beam diagnostics.},
doi = {10.1103/PhysRevAccelBeams.19.051302},
url = {https://www.osti.gov/biblio/1250615},
journal = {Physical Review Accelerators and Beams},
issn = {2469-9888},
number = 5,
volume = 19,
place = {United States},
year = {Tue May 03 00:00:00 EDT 2016},
month = {Tue May 03 00:00:00 EDT 2016}
}
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Cited by: 20 works
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Works referenced in this record:
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Works referencing / citing this record:
Femtosecond phase control in high-field terahertz-driven ultrafast electron sources
journal, January 2019
- Zhang, Dongfang; Fallahi, Arya; Hemmer, Michael
- Optica, Vol. 6, Issue 7
Femtosecond phase control in high-field terahertz-driven ultrafast electron sources
text, January 2019
- Zhang, Dongfang; Fallahi, Arya; Hemmer, Michael
- Deutsches Elektronen-Synchrotron, DESY, Hamburg
Femtosecond phase control in high-field terahertz-driven ultrafast electron sources
journal, January 2019
- Zhang, Dongfang; Fallahi, Arya; Hemmer, Michael
- Optica, Vol. 6, Issue 7
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
Design of the Compact Linear Collider main linac accelerating structure made from two halves
journal, April 2017
- Zha, Hao; Grudiev, Alexej
- Physical Review Accelerators and Beams, Vol. 20, Issue 4
Measurements of electron beam deflection and rf breakdown rate from a surface wave guided in metallic mm-wave accelerating structures
journal, September 2018
- Dal Forno, Massimo; Dolgashev, Valery; Bowden, Gordon
- Physical Review Accelerators and Beams, Vol. 21, Issue 9
Segmented terahertz electron accelerator and manipulator (STEAM)
text, January 2018
- Zhang, Dongfang; Fallahi, Arya; Hemmer, Michael
- Deutsches Elektronen-Synchrotron, DESY, Hamburg