Beam impedance and heating analysis of the diagnostic stripline
Abstract
In this work the heat transfer analysis has been performed for the stripline kicker, design of which is used at many accelerator facilities as a part of the transverse bunch-by-bunch feed-back system, including NSLS-II. The experimental data of the electrode temperature have been collected from a special diagnostic stripline designed with six infrared view ports. The temperature analysis is based on the power loss calculations and the loss factor computed by the 3-D electromagnetic simulation code GdfidL. To estimate the power loss, we analyze the real part of the longitudinal impedance and the loss factor for two different regimes. We use the ANSYS finite element code to correlate the temperature with the power loss. Lambertson and Shafer formalisms of the longitudinal and transverse beam impedances are discussed for the simplified stripline geometries. The required characteristic impedances and the geometric factors are determined analytically for the simplified geometries and compared with the results for the designed stripline geometry using the 2-D POISSON code by solving the Laplace’s equation in two dimensions. Lambertson’s equations are compared with numerical results. We introduce the frequency range, within which we can apply the analytical approach.
- Authors:
-
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Pohang Accelerator Lab. (PAL) (Republic of Korea)
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1614981
- Alternate Identifier(s):
- OSTI ID: 1702606
- Report Number(s):
- BNL-213844-2020-JAAM
Journal ID: ISSN 0168-9002; TRN: US2106327
- Grant/Contract Number:
- SC0012704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Additional Journal Information:
- Journal Volume: 963; Journal Issue: C; Journal ID: ISSN 0168-9002
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; Stripline; Temperature; Longitudinal coupling impedance; Loss factor; Power loss; Characteristic impedance
Citation Formats
Blednykh, A., Bacha, B., Bassi, G., Hetzel, C., Kosciuk, B., Padrazo, D., Shaftan, T., Smaluk, V., and Ha, T. Beam impedance and heating analysis of the diagnostic stripline. United States: N. p., 2020.
Web. doi:10.1016/j.nima.2020.163729.
Blednykh, A., Bacha, B., Bassi, G., Hetzel, C., Kosciuk, B., Padrazo, D., Shaftan, T., Smaluk, V., & Ha, T. Beam impedance and heating analysis of the diagnostic stripline. United States. https://doi.org/10.1016/j.nima.2020.163729
Blednykh, A., Bacha, B., Bassi, G., Hetzel, C., Kosciuk, B., Padrazo, D., Shaftan, T., Smaluk, V., and Ha, T. Sat .
"Beam impedance and heating analysis of the diagnostic stripline". United States. https://doi.org/10.1016/j.nima.2020.163729. https://www.osti.gov/servlets/purl/1614981.
@article{osti_1614981,
title = {Beam impedance and heating analysis of the diagnostic stripline},
author = {Blednykh, A. and Bacha, B. and Bassi, G. and Hetzel, C. and Kosciuk, B. and Padrazo, D. and Shaftan, T. and Smaluk, V. and Ha, T.},
abstractNote = {In this work the heat transfer analysis has been performed for the stripline kicker, design of which is used at many accelerator facilities as a part of the transverse bunch-by-bunch feed-back system, including NSLS-II. The experimental data of the electrode temperature have been collected from a special diagnostic stripline designed with six infrared view ports. The temperature analysis is based on the power loss calculations and the loss factor computed by the 3-D electromagnetic simulation code GdfidL. To estimate the power loss, we analyze the real part of the longitudinal impedance and the loss factor for two different regimes. We use the ANSYS finite element code to correlate the temperature with the power loss. Lambertson and Shafer formalisms of the longitudinal and transverse beam impedances are discussed for the simplified stripline geometries. The required characteristic impedances and the geometric factors are determined analytically for the simplified geometries and compared with the results for the designed stripline geometry using the 2-D POISSON code by solving the Laplace’s equation in two dimensions. Lambertson’s equations are compared with numerical results. We introduce the frequency range, within which we can apply the analytical approach.},
doi = {10.1016/j.nima.2020.163729},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 963,
place = {United States},
year = {Sat Feb 29 00:00:00 EST 2020},
month = {Sat Feb 29 00:00:00 EST 2020}
}
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