SRF2011 - List of Authors (Pischalnikov, Y.M.)

Paper

Title

Page

Adaptive Lorentz Force Detuning Compensation in the ILC S1-G Cryomodule at KEK

254

W. Schappert, R.V. Pilipenko, Y.M. Pischalnikov
Fermilab, Batavia, USA
H. Hayano, E. Kako, S. Noguchi, N. Ohuchi, Y. Yamamoto
KEK, Ibaraki, Japan

The recent tests of the S1-Global cryomodule at KEK provided a unique opportunity to compare the performance of four different styles of 1.3 GHz SRF cavities and tuners under similar operating conditions. Results of adaptive LFD compensation at gradients of up to 35 MV/m for DESY/Saclay, FNAL/INFN and KEK cavity/tuner designs are compared.

Poster MOPO064 [1.506 MB]

TUPO001

Development of Quality Assurance Procedures for the Fast/Slow Tuners on the 1.3 GHz SRF Cavities for the SRF Accelerator Test Facility at Fermilab

344

Y.M. Pischalnikov, S. Barbanotti, C.J. Grimm, T.N. Khabiboulline, R.V. Pilipenko, W. Schappert
Fermilab, Batavia, USA

The 1.3 GHz elliptical SRF cavities being prepared for cryomodules of the Fermilab SRF Accelerator Test Facility are equipped with coaxial blade tuners. Quality Assurance tests of these tuners during initial installation, cold testing in the Horizontal Test Stand and during string assembly are described.

Poster TUPO001 [1.811 MB]

MOPO013

RF Test Results from Cryomodule 1 at the Fermilab SRF Beam Test Facility

79

E.R. Harms, J. Branlard, K. Carlson, B. Chase, E. Cullerton, A. Hocker, C.C. Jensen, P.W. Joireman, A.L. Klebaner, T. Kubicki, M.J. Kucera, A.M. Legan, J.R. Leibfritz, A. Martinez, M.W. McGee, S. Nagaitsev, O.A. Nezhevenko, D.J. Nicklaus, H. Pfeffer, Y.M. Pischalnikov, P.S. Prieto, J. Reid, W. Schappert, V. Tupikov, P. Varghese
Fermilab, Batavia, USA

Funding: Operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy.
Powered operation of Cryomodule 1 (CM-1) at the Fermilab SRF Beam Test Facility began in late 2010. Since then a series of tests first on the eight individual cavities and then the full cryomodule have been performed. We report on the results of these tests and lessons learned which will have an impact on future module testing at Fermilab.

Poster MOPO013 [3.894 MB]

THPO030

Microphonics Compensation for a 325MHz Single Spoke Cavity at Fermilab

784

W. Schappert, Y.M. Pischalnikov
Fermilab, Batavia, USA

Fermilab is developing 325MHz CW narrow-bandwidth spoke cavities for the proposed Project X. The first results of active microphonics compensation for these cavities are presented.

Poster THPO030 [0.927 MB]

THPO037

Lorentz Force Detuning Compensation in Fermilab Cryomodule 1

801

Y.M. Pischalnikov, B. Chase, E.R. Harms, W. Schappert
Fermilab, Batavia, USA

Cryomodule 1 of the Fermilab SRF Accelerator Test Facility has recently been commissioned. First results are presented from the simultaneous compensation of Lorentz force detuning in all eight of the 1.3 GHz Tesla style superconducting cavities.

Poster THPO037 [0.958 MB]

FRIOA01

Adaptive Compensation for Lorentz Force Detuning in Superconducting RF Cavities

940

W. Schappert, Y.M. Pischalnikov
Fermilab, Batavia, USA

The Lorentz force can dynamically detune pulsed Superconducting RF cavities and considerable additional RF power can be required to maintain the accelerating gradient if no effort is made to compensate. Fermilab has developed an adaptive compensation system for cavities in the Horizontal Test Stand, in the SRF Accelerator Test Facility, and for the proposed Project X.

THIOA01

Test Results of the International S1-Global Cryomodule

615

Y. Yamamoto, M. Akemoto, S. Fukuda, K. Hara, H. Hayano, N. Higashi, E. Kako, H. Katagiri, Y. Kojima, Y. Kondo, T. Matsumoto, H. Matsushita, S. Michizono, T. Miura, H. Nakai, H. Nakajima, K. Nakanishi, S. Noguchi, N. Ohuchi, T. Saeki, M. Satoh, T. Shidara, T. Shishido, T. Takenaka, A. Terashima, N. Toge, K. Tsuchiya, K. Watanabe, S. Yamaguchi, A. Yamamoto, K. Yokoya, M. Yoshida
KEK, Ibaraki, Japan
C. Adolphsen, C.D. Nantista
SLAC, Menlo Park, California, USA
T.T. Arkan, S. Barbanotti, M.A. Battistoni, H. Carter, M.S. Champion, A. Hocker, R.D. Kephart, J.S. Kerby, D.V. Mitchell, T.J. Peterson, Y.M. Pischalnikov, M.C. Ross, W. Schappert, B.E. Smith
Fermilab, Batavia, USA
A. Bosotti, C. Pagani, R. Paparella, P. Pierini
INFN/LASA, Segrate (MI), Italy
K. Jensch, D. Kostin, L. Lilje, A. Matheisen, W.-D. Möller, P. Schilling, M. Schmökel, N.J. Walker, H. Weise
DESY, Hamburg, Germany

S1-Global collaborative project by joint efforts of INFN, DESY, FNAL, SLAC and KEK, finished successfully at KEK- STF on February in 2011, is a crucial project for ILC. For this project, 8 SRF cavities, 2 from DESY, 2 from FNAL and 4 from KEK, were installed into one cryomodule with the thermal shields and the cooling pipes of liquid helium and nitrogen, cooled down to 2K totally three times, and cold-tested by using the three different frequency tuning systems (Blade tuner from INFN/FNAL, Saclay tuner from DESY and Slide-Jack tuner from KEK) and two types of input couplers (TTF III from DESY and STF#2 from KEK). During the cold test with high power, cavity performance, LFD (Lorentz Force Detuning) compensation by Piezo actuator, simultaneous 7 SRF cavities operation, dynamic heating loss measurement including static loss and DRFS (Distributed RF Scheme) operation with LLRF (Low Level RF) feedback system, were established successfully. In this talk, the results of the S1-Global cryomodule test are reported, discussed and summarized.

Slides THIOA01 [11.254 MB]

Paper	Title	Page
MOPO064	Adaptive Lorentz Force Detuning Compensation in the ILC S1-G Cryomodule at KEK	254
	W. Schappert, R.V. Pilipenko, Y.M. Pischalnikov Fermilab, Batavia, USA H. Hayano, E. Kako, S. Noguchi, N. Ohuchi, Y. Yamamoto KEK, Ibaraki, Japan
	The recent tests of the S1-Global cryomodule at KEK provided a unique opportunity to compare the performance of four different styles of 1.3 GHz SRF cavities and tuners under similar operating conditions. Results of adaptive LFD compensation at gradients of up to 35 MV/m for DESY/Saclay, FNAL/INFN and KEK cavity/tuner designs are compared.
	Poster MOPO064 [1.506 MB]

TUPO001	Development of Quality Assurance Procedures for the Fast/Slow Tuners on the 1.3 GHz SRF Cavities for the SRF Accelerator Test Facility at Fermilab	344
	Y.M. Pischalnikov, S. Barbanotti, C.J. Grimm, T.N. Khabiboulline, R.V. Pilipenko, W. Schappert Fermilab, Batavia, USA
	The 1.3 GHz elliptical SRF cavities being prepared for cryomodules of the Fermilab SRF Accelerator Test Facility are equipped with coaxial blade tuners. Quality Assurance tests of these tuners during initial installation, cold testing in the Horizontal Test Stand and during string assembly are described.
	Poster TUPO001 [1.811 MB]

MOPO013	RF Test Results from Cryomodule 1 at the Fermilab SRF Beam Test Facility	79
	E.R. Harms, J. Branlard, K. Carlson, B. Chase, E. Cullerton, A. Hocker, C.C. Jensen, P.W. Joireman, A.L. Klebaner, T. Kubicki, M.J. Kucera, A.M. Legan, J.R. Leibfritz, A. Martinez, M.W. McGee, S. Nagaitsev, O.A. Nezhevenko, D.J. Nicklaus, H. Pfeffer, Y.M. Pischalnikov, P.S. Prieto, J. Reid, W. Schappert, V. Tupikov, P. Varghese Fermilab, Batavia, USA
	Funding: Operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. Powered operation of Cryomodule 1 (CM-1) at the Fermilab SRF Beam Test Facility began in late 2010. Since then a series of tests first on the eight individual cavities and then the full cryomodule have been performed. We report on the results of these tests and lessons learned which will have an impact on future module testing at Fermilab.
	Poster MOPO013 [3.894 MB]

THPO030	Microphonics Compensation for a 325MHz Single Spoke Cavity at Fermilab	784
	W. Schappert, Y.M. Pischalnikov Fermilab, Batavia, USA
	Fermilab is developing 325MHz CW narrow-bandwidth spoke cavities for the proposed Project X. The first results of active microphonics compensation for these cavities are presented.
	Poster THPO030 [0.927 MB]

THPO037	Lorentz Force Detuning Compensation in Fermilab Cryomodule 1	801
	Y.M. Pischalnikov, B. Chase, E.R. Harms, W. Schappert Fermilab, Batavia, USA
	Cryomodule 1 of the Fermilab SRF Accelerator Test Facility has recently been commissioned. First results are presented from the simultaneous compensation of Lorentz force detuning in all eight of the 1.3 GHz Tesla style superconducting cavities.
	Poster THPO037 [0.958 MB]

FRIOA01	Adaptive Compensation for Lorentz Force Detuning in Superconducting RF Cavities	940
	W. Schappert, Y.M. Pischalnikov Fermilab, Batavia, USA
	The Lorentz force can dynamically detune pulsed Superconducting RF cavities and considerable additional RF power can be required to maintain the accelerating gradient if no effort is made to compensate. Fermilab has developed an adaptive compensation system for cavities in the Horizontal Test Stand, in the SRF Accelerator Test Facility, and for the proposed Project X.

THIOA01	Test Results of the International S1-Global Cryomodule	615
	Y. Yamamoto, M. Akemoto, S. Fukuda, K. Hara, H. Hayano, N. Higashi, E. Kako, H. Katagiri, Y. Kojima, Y. Kondo, T. Matsumoto, H. Matsushita, S. Michizono, T. Miura, H. Nakai, H. Nakajima, K. Nakanishi, S. Noguchi, N. Ohuchi, T. Saeki, M. Satoh, T. Shidara, T. Shishido, T. Takenaka, A. Terashima, N. Toge, K. Tsuchiya, K. Watanabe, S. Yamaguchi, A. Yamamoto, K. Yokoya, M. Yoshida KEK, Ibaraki, Japan C. Adolphsen, C.D. Nantista SLAC, Menlo Park, California, USA T.T. Arkan, S. Barbanotti, M.A. Battistoni, H. Carter, M.S. Champion, A. Hocker, R.D. Kephart, J.S. Kerby, D.V. Mitchell, T.J. Peterson, Y.M. Pischalnikov, M.C. Ross, W. Schappert, B.E. Smith Fermilab, Batavia, USA A. Bosotti, C. Pagani, R. Paparella, P. Pierini INFN/LASA, Segrate (MI), Italy K. Jensch, D. Kostin, L. Lilje, A. Matheisen, W.-D. Möller, P. Schilling, M. Schmökel, N.J. Walker, H. Weise DESY, Hamburg, Germany
	S1-Global collaborative project by joint efforts of INFN, DESY, FNAL, SLAC and KEK, finished successfully at KEK- STF on February in 2011, is a crucial project for ILC. For this project, 8 SRF cavities, 2 from DESY, 2 from FNAL and 4 from KEK, were installed into one cryomodule with the thermal shields and the cooling pipes of liquid helium and nitrogen, cooled down to 2K totally three times, and cold-tested by using the three different frequency tuning systems (Blade tuner from INFN/FNAL, Saclay tuner from DESY and Slide-Jack tuner from KEK) and two types of input couplers (TTF III from DESY and STF#2 from KEK). During the cold test with high power, cavity performance, LFD (Lorentz Force Detuning) compensation by Piezo actuator, simultaneous 7 SRF cavities operation, dynamic heating loss measurement including static loss and DRFS (Distributed RF Scheme) operation with LLRF (Low Level RF) feedback system, were established successfully. In this talk, the results of the S1-Global cryomodule test are reported, discussed and summarized.
	Slides THIOA01 [11.254 MB]