NAPAC2016 - List of Authors (Pischalnikov, Y.M.)

Paper	Title	Page
MOPOB32	Design and Test of the Prototype Tuner for 3.9 GHz SRF Cavity for LCLS II Project	140
	Y.M. Pischalnikov, E. Borissov, J.C. Yun Fermilab, Batavia, Illinois, USA
	Fermilab is responsible for the design of the 3.9GHz cryomodule for the LCLS-II that will operate in continuous wave (CW) mode. Bandwidth of the SRF cavities will be in the range of the 180Hz. In our tuner design, we adopted as the slow tuner-mechanism slim blade tuner originated by INFN for the European XFEL 3.9GHz. At the same time bandwidth of the SRF cavities for LCLS II will be in the range of the 180Hz and fine/fast tuning of the cavity frequency required. We added to the design fast/fine tuner made with 2 encapsulated piezos. First prototype tuner has been built and went through testing at warm conditions. Details of the design and summary of the tests will be presented in this paper.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-NAPAC2016-MOPOB32
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MOPOB33	LCLS-II Tuner Assembly for the Prototype Cryomodule at FNAL	143
	Y.M. Pischalnikov, E. Borissov, T.N. Khabiboulline, J.C. Yun Fermilab, Batavia, Illinois, USA
	The tuner design for LCLS-II has been thoroughly verified and fabricated for used in the LCLS-II prototype modules. This paper will present the lessons learned during the installation of these tuners for the prototype modules at FNAL, including installation procedures, best practices, and challenges encountered.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-NAPAC2016-MOPOB33
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WEB3CO03	650 MHz Elliptical Superconducting RF Cavities for PIP-II Project	859
	V. Jain, E. Borissov, I.V. Gonin, C.J. Grimm, S. Kazakov, T.N. Khabiboulline, V.A. Lebedev, C.S. Mishra, D.V. Mitchell, T.H. Nicol, Y.M. Pischalnikov, A.M. Rowe, N.K. Sharma, V.P. Yakovlev Fermilab, Batavia, Illinois, USA
	Funding: Operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. Proton Improvement Plan-II at Fermilab is an 800 MeV superconducting pulsed linac which is also capable of running in CW mode. The high energy section operates from 185 MeV to 800 MeV instigated using 650 MHz elliptical cavities. The low-beta (LB) βG =0.61 portion will accelerate protons from 185 MeV-500 MeV, while the high-beta (HB) βG = 0.92 portion of the linac will acceler-ate from 500 to 800 MeV. The development of both LB and HB cavities is taking place under the umbrella of the Indian Institutions Fermilab Collaboration (IIFC). This paper presents the design methodology adopted for both low-beta and high-beta cavities starting from the RF design yielding mechanical dimensions of the cavity cells and, then moving to the workable dressed cavity design. Designs of end groups (main coupler side and field probe side), helium vessel, coupler, and tuner are the same for both cavities everywhere where it is possible. The design, analysis and integration of dressed cavity are presented in detail.
	Slides WEB3CO03 [11.396 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-NAPAC2016-WEB3CO03
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FRA2CO04	Status of the SRF Cavities Resonance Control R&D Work at FNAL
	Y.M. Pischalnikov, J.P. Holzbauer, W. Schappert Fermilab, Batavia, Illinois, USA
	There are several new machines under construction or development at this moment. Some machines, (LCLS II and PIP II ) will operate with the relatively low beam currents and high cavity quality factors. SRF cavities for these projects will be operated with small RF bandwidths, meaning that they will be highly sensitive to microphonics and Lorentz force detuning. Other future projects such as ESS will be operate with SRF cavities tuned for larger RF bandwidth but will still have significant Lorentz Force Detuning. Work is ongoing at FNAL to develop active resonance stabilization techniques using fast piezoelectric tuners in support of PIP-II and LCLS II. These techniques as well as testing and development results using a prototype, dressed low-beta single-spoke cavity and 9-cell elliptical cavities will be presented along with an outlook for future efforts.
	Slides FRA2CO04 [3.544 MB]
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Paper

Title

Page

Design and Test of the Prototype Tuner for 3.9 GHz SRF Cavity for LCLS II Project

140

Y.M. Pischalnikov, E. Borissov, J.C. Yun
Fermilab, Batavia, Illinois, USA

Fermilab is responsible for the design of the 3.9GHz cryomodule for the LCLS-II that will operate in continuous wave (CW) mode. Bandwidth of the SRF cavities will be in the range of the 180Hz. In our tuner design, we adopted as the slow tuner-mechanism slim blade tuner originated by INFN for the European XFEL 3.9GHz. At the same time bandwidth of the SRF cavities for LCLS II will be in the range of the 180Hz and fine/fast tuning of the cavity frequency required. We added to the design fast/fine tuner made with 2 encapsulated piezos. First prototype tuner has been built and went through testing at warm conditions. Details of the design and summary of the tests will be presented in this paper.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-NAPAC2016-MOPOB32

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPOB33

LCLS-II Tuner Assembly for the Prototype Cryomodule at FNAL

143

Y.M. Pischalnikov, E. Borissov, T.N. Khabiboulline, J.C. Yun
Fermilab, Batavia, Illinois, USA

The tuner design for LCLS-II has been thoroughly verified and fabricated for used in the LCLS-II prototype modules. This paper will present the lessons learned during the installation of these tuners for the prototype modules at FNAL, including installation procedures, best practices, and challenges encountered.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-NAPAC2016-MOPOB33

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEB3CO03

650 MHz Elliptical Superconducting RF Cavities for PIP-II Project

859

V. Jain, E. Borissov, I.V. Gonin, C.J. Grimm, S. Kazakov, T.N. Khabiboulline, V.A. Lebedev, C.S. Mishra, D.V. Mitchell, T.H. Nicol, Y.M. Pischalnikov, A.M. Rowe, N.K. Sharma, V.P. Yakovlev
Fermilab, Batavia, Illinois, USA

Funding: Operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy.
Proton Improvement Plan-II at Fermilab is an 800 MeV superconducting pulsed linac which is also capable of running in CW mode. The high energy section operates from 185 MeV to 800 MeV instigated using 650 MHz elliptical cavities. The low-beta (LB) βG =0.61 portion will accelerate protons from 185 MeV-500 MeV, while the high-beta (HB) βG = 0.92 portion of the linac will acceler-ate from 500 to 800 MeV. The development of both LB and HB cavities is taking place under the umbrella of the Indian Institutions Fermilab Collaboration (IIFC). This paper presents the design methodology adopted for both low-beta and high-beta cavities starting from the RF design yielding mechanical dimensions of the cavity cells and, then moving to the workable dressed cavity design. Designs of end groups (main coupler side and field probe side), helium vessel, coupler, and tuner are the same for both cavities everywhere where it is possible. The design, analysis and integration of dressed cavity are presented in detail.

Slides WEB3CO03 [11.396 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-NAPAC2016-WEB3CO03

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

FRA2CO04

Status of the SRF Cavities Resonance Control R&D Work at FNAL

Y.M. Pischalnikov, J.P. Holzbauer, W. Schappert
Fermilab, Batavia, Illinois, USA

There are several new machines under construction or development at this moment. Some machines, (LCLS II and PIP II ) will operate with the relatively low beam currents and high cavity quality factors. SRF cavities for these projects will be operated with small RF bandwidths, meaning that they will be highly sensitive to microphonics and Lorentz force detuning. Other future projects such as ESS will be operate with SRF cavities tuned for larger RF bandwidth but will still have significant Lorentz Force Detuning. Work is ongoing at FNAL to develop active resonance stabilization techniques using fast piezoelectric tuners in support of PIP-II and LCLS II. These techniques as well as testing and development results using a prototype, dressed low-beta single-spoke cavity and 9-cell elliptical cavities will be presented along with an outlook for future efforts.

Slides FRA2CO04 [3.544 MB]

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)