Development and high-power testing of an -band dielectric-loaded power extractor
Abstract
Dielectric-loaded structures are promising candidates for use in structure wakefield acceleration. They could be useful for both the collinear wakefield and the two-beam acceleration (TBA) approaches, due to their low fabrication cost, low radio-frequency (rf) losses, and potential to withstand high gradients. A short rf pulse (≤20ns) TBA program is currently being developed at the Argonne Wakefield Accelerator (AWA) facility, where dielectric-loaded structures are being used for both the power extraction and transfer structure (PETS) and the accelerator. In this study, an X-band 11.7 GHz dielectric PETS was developed and tested at AWA to demonstrate high-power, short-pulse wakefield generation. The PETS was driven by a 1.3 GHz train of eight electron bunches separated by 769.2 ps (9 times the X-band rf period) in order to achieve coherent wakefield superposition. A total train charge of 360 nC was passed through the PETS structure to generate ~200MW, ~3ns flat-top rf pulses without rf breakdown. A future experiment is being planned to increase the generated rf power to approximately ~1GW by optimizing the structure design and improving the drive beam quality.
- Authors:
- Publication Date:
- Research Org.:
- Euclid Techlabs, LLC, Bolingbrook, IL (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1581035
- Alternate Identifier(s):
- OSTI ID: 1594840; OSTI ID: 1607447
- Grant/Contract Number:
- AC02-06CH11357; SC00011299; SC0011299
- Resource Type:
- Published Article
- Journal Name:
- Physical Review Accelerators and Beams
- Additional Journal Information:
- Journal Name: Physical Review Accelerators and Beams Journal Volume: 23 Journal Issue: 1; Journal ID: ISSN 2469-9888
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; dielectric accelerator; wakefield; rf power
Citation Formats
Shao, Jiahang, Jing, Chunguang, Wisniewski, Eric, Ha, Gwanghui, Conde, Manoel, Liu, Wanming, Power, John, and Zheng, Lianmin. Development and high-power testing of an X -band dielectric-loaded power extractor. United States: N. p., 2020.
Web. doi:10.1103/PhysRevAccelBeams.23.011301.
Shao, Jiahang, Jing, Chunguang, Wisniewski, Eric, Ha, Gwanghui, Conde, Manoel, Liu, Wanming, Power, John, & Zheng, Lianmin. Development and high-power testing of an X -band dielectric-loaded power extractor. United States. https://doi.org/10.1103/PhysRevAccelBeams.23.011301
Shao, Jiahang, Jing, Chunguang, Wisniewski, Eric, Ha, Gwanghui, Conde, Manoel, Liu, Wanming, Power, John, and Zheng, Lianmin. Fri .
"Development and high-power testing of an X -band dielectric-loaded power extractor". United States. https://doi.org/10.1103/PhysRevAccelBeams.23.011301.
@article{osti_1581035,
title = {Development and high-power testing of an X -band dielectric-loaded power extractor},
author = {Shao, Jiahang and Jing, Chunguang and Wisniewski, Eric and Ha, Gwanghui and Conde, Manoel and Liu, Wanming and Power, John and Zheng, Lianmin},
abstractNote = {Dielectric-loaded structures are promising candidates for use in structure wakefield acceleration. They could be useful for both the collinear wakefield and the two-beam acceleration (TBA) approaches, due to their low fabrication cost, low radio-frequency (rf) losses, and potential to withstand high gradients. A short rf pulse (≤20ns) TBA program is currently being developed at the Argonne Wakefield Accelerator (AWA) facility, where dielectric-loaded structures are being used for both the power extraction and transfer structure (PETS) and the accelerator. In this study, an X-band 11.7 GHz dielectric PETS was developed and tested at AWA to demonstrate high-power, short-pulse wakefield generation. The PETS was driven by a 1.3 GHz train of eight electron bunches separated by 769.2 ps (9 times the X-band rf period) in order to achieve coherent wakefield superposition. A total train charge of 360 nC was passed through the PETS structure to generate ~200MW, ~3ns flat-top rf pulses without rf breakdown. A future experiment is being planned to increase the generated rf power to approximately ~1GW by optimizing the structure design and improving the drive beam quality.},
doi = {10.1103/PhysRevAccelBeams.23.011301},
journal = {Physical Review Accelerators and Beams},
number = 1,
volume = 23,
place = {United States},
year = {Fri Jan 03 00:00:00 EST 2020},
month = {Fri Jan 03 00:00:00 EST 2020}
}
https://doi.org/10.1103/PhysRevAccelBeams.23.011301
Web of Science
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