IPAC2015 - List of Authors (Hidaka, Y.)

Paper	Title	Page
MOPJE053	NSLS-II Beam Lifetime Measurements and Modeling	416
	B. Podobedov, W.X. Cheng, Y. Hidaka, H.-C. Hseuh, G.M. Wang BNL, Upton, Long Island, New York, USA
	NSLS-II is a recently constructed 3 GeV synchrotron light source with design horizontal emittance values in sub-nm range. Achieving good beam lifetime is critically important for NSLS-II as it is closely tied in to such important operational aspects as top-off injection frequency, injector components wear, radiation protection and control, and others. In this paper we present lifetime-related commissioning results, describe our present understanding of beam lifetime at NSLS-II and extrapolate our models to the fully built-up machine operating at 500 mA design beam current.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPJE053
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MOPMN025	Local Impedance Estimation of NSLS-II Storage Ring with Bumped Orbit	754
	J. Choi, G. Bassi, A. Blednykh, Y. Hidaka BNL, Upton, Long Island, New York, USA
	Funding: DOE contract No: DE-AC02- 98CH10886 As the newly constructed 3rd generation light source, NSLS-II is expected to provide the synchrotron radiation of ultra high brightness and flux with advanced insertion devices. To minimize the beam emittance, damping wigglers are used and the small aperture is located at the straight section with the damping wiggler and the corresponding vacuum camber is NEG coated. We used the local bump method to find the effect on the beam from the narrow aperture and the paper shows the results.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPMN025
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TUAB2	First Collective Effects Measurements in NSLS-II with ID's	1332
	A. Blednykh, B. Bacha, G. Bassi, W.X. Cheng, J. Choi, Y. Hidaka, Y. Li, B. Podobedov, T.V. Shaftan, V. Smalyuk, T. Tanabe, G.M. Wang, F.J. Willeke, L.-H. Yu BNL, Upton, Long Island, New York, USA
	Funding: Work supported by DOE contract DE-AC02-98CH10886. As another important milestone towards the final goal to store an average current of 500mA, the average current of 200mA, distributed within ~1000 bunches, was recently achieved in the NSLS-II storage ring after the installation of three Damping Wigglers and four In-Vacuum Undulators. First measurements of the collective effects and instability thresholds, both in single- and multi-bunch mode, are discussed.
	Slides TUAB2 [2.691 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUAB2
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TUPMA050	NSLS-II Injector Commissioning and Initial Operation	1944
	E.B. Blum, B. Bacha, G. Bassi, J. Bengtsson, A. Blednykh, S. Buda, W.X. Cheng, J. Choi, J. Cupolo, R. D'Alsace, M.A. Davidsaver, J.H. De Long, L. Doom, D.J. Durfee, R.P. Fliller, M. Fulkerson, G. Ganetis, F. Gao, C. Gardner, W. Guo, R. Heese, Y. Hidaka, Y. Hu, M.P. Johanson, B.N. Kosciuk, S. Kowalski, S.L. Kramer, S. Krinsky, Y. Li, W. Louie, M.A. Maggipinto, P. Marino, J. Mead, J. Oliva, D. Padrazo, K. Pedersen, B. Podobedov, R.S. Rainer, J. Rose, M. Santana, S. Seletskiy, T.V. Shaftan, O. Singh, P. Singh, V.V. Smaluk, R.M. Smith, T. Summers, J. Tagger, Y. Tian, W.H. Wahl, G.M. Wang, G.J. Weiner, F.J. Willeke, L. Yang, X. Yang, E. Zeitler, E. Zitvogel, P. Zuhoski BNL, Upton, Long Island, New York, USA A. Akimov, P.B. Cheblakov, I.N. Churkin, A.A. Derbenev, S.M. Gurov, S.E. Karnaev, V.A. Kiselev, A.A. Korepanov, E.B. Levichev, S.V. Sinyatkin, A.N. Zhuravlev BINP SB RAS, Novosibirsk, Russia
	The injector for the National Synchrotron Light Source II storage ring consists of a 3 GeV booster synchrotron and a 200 MeV S-band linac. The linac was designed to produce either a single bunch with a charge of 0.5 nC of electrons or a train of bunches up to 300 ns long containing a total charge of 15 nC. The booster was designed to accelerate up to 15 nC each cycle. Linac commissioning was completed in April 2012. Booster commissioning was started in November 2013 and completed in March 2014. All of the significant design goals were satisfied including beam emittance, energy spread, and transport efficiency. While the maximum booster charge accelerated was only 10 nC this has proven to be more than sufficient for storage ring commissioning. The injector has operated reliably during storage ring operation since then. Results will be presented showing measurements of injector operating parameters achieved during commissioning and initial operation. Operating experience and reliability during the first year of NSLS-II operation will be discussed.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUPMA050
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TUPMA053	Experience with First Turns Commissioning in NSLS-II Storage Ring	1950
	S. Seletskiy, G. Bassi, J. Bengtsson, A. Blednykh, E.B. Blum, W.X. Cheng, J. Choi, R.P. Fliller, W. Guo, R. Heese, Y. Hidaka, S.L. Kramer, Y. Li, B. Podobedov, T.V. Shaftan, G.M. Wang, F.J. Willeke, L. Yang, X. Yang BNL, Upton, Long Island, New York, USA
	In this paper we describe our experience with commissioning of the first turns in the NSLS-II storage ring. We discuss the problems that we encountered and show how applying a dedicated first turns commissioning software allowed us to diagnose and resolve these problems.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUPMA053
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TUPMA054	High Level Application for First Turns Commissioning in NSLS-II Storage Ring	1953
	S. Seletskiy, A. Blednykh, J. Choi, Y. Hidaka, B. Podobedov, G. Shen, L. Yang BNL, Upton, Long Island, New York, USA
	The typical problems occurring during commissioning of the first turns in the storage rings include shorted coils or reversed polarity of the magnets, cross-cabling of magnets power supplies and reversed polarity of BPMs. In this paper we describe a dedicated high level control application, which was created and utilized for commissioning of the first turns in NSLS-II storage ring.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUPMA054
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TUPHA005	Tools for NSLS II Commissioning	1971
	G.M. Wang, G. Bassi, A. Blednykh, W.X. Cheng, J. Choi, L.R. Dalesio, M.A. Davidsaver, J.H. De Long, K. Ha, Y. Hidaka, Y. Hu, Y. Li, D. Padrazo, S. Seletskiy, T.V. Shaftan, G. Shen, K. Shroff, O. Singh, T. Summers, Y. Tian, F.J. Willeke, H. Xu, L. Yang, X. Yang BNL, Upton, Long Island, New York, USA
	The National Synchrotron Light Source II (NSLS-II) is a state of the art 3 GeV third generation light source at Brookhaven National Laboratory. As many facilities worldwide, NSLS II uses the EPICS control system to monitor and control all accelerator hardware. Control system studio (CSS) is used for simple tasks such as monitoring, display, setting of PVs. browsing the historical data, et. al. For more complex accelerator physics applications, a collection of scripts are mainly written in Python and part from Matlab during commissioning. With the close collaboration and fully support from control group, more and more CSS features were developed for operation convenience and several high level applications are interfaced with users in CSS panels for daily use based on softiocs. This paper will present the tools that we have been using for commissioning.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUPHA005
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TUPHA006	NSLS-II Storage Ring Insertion Device and Front-End Commissioning	1974
	G.M. Wang, C. Amundsen, G. Bassi, J. Bengtsson, A. Blednykh, E.B. Blum, W.X. Cheng, J. Choi, O.V. Chubar, T.M. Corwin, M.A. Davidsaver, L. Doom, W. Guo, D.A. Harder, P. He, Y. Hidaka, Y. Hu, P. Ilinski, C.A. Kitegi, S.L. Kramer, Y. Li, M. Musardo, D. Padrazo, B. Podobedov, K. Qian, R.S. Rainer, J. Rank, S. Seletskiy, T.V. Shaftan, S.K. Sharma, O. Singh, V. Smalyuk, R.M. Smith, T. Summers, T. Tanabe, F.J. Willeke, L. Yang, X. Yang, L.-H. Yu BNL, Upton, Long Island, New York, USA
	The National Synchrotron Light Source II (NSLS-II) is a state of the art 3 GeV third generation light source at Brookhaven National Laboratory. In the spring 2014, the storage ring was commissioning up to 50 mA without insertion device. In the fall, the project beamlines, includes seven insertion devices on six ID ports were commissioned within two and a half months. These beamlines consist of IXS, HXN, CSX-1, CSX-2, CHX, SRX, and XPD-1, from the radiation sources elliptically polarizing undulator (EPU), damping wiggler (DW) and in vacuum undulator (IVU) to cover the VUV through the very hard x-ray range. In this paper, a number of commissioning and operation experiences are discussed here, such as injection, lifetime, ID residual field and compensation, source point stability, beam alignment and tools for control, monitor and beam protection.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUPHA006
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Paper

Title

Page

NSLS-II Beam Lifetime Measurements and Modeling

416

B. Podobedov, W.X. Cheng, Y. Hidaka, H.-C. Hseuh, G.M. Wang
BNL, Upton, Long Island, New York, USA

NSLS-II is a recently constructed 3 GeV synchrotron light source with design horizontal emittance values in sub-nm range. Achieving good beam lifetime is critically important for NSLS-II as it is closely tied in to such important operational aspects as top-off injection frequency, injector components wear, radiation protection and control, and others. In this paper we present lifetime-related commissioning results, describe our present understanding of beam lifetime at NSLS-II and extrapolate our models to the fully built-up machine operating at 500 mA design beam current.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPJE053

Export •

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MOPMN025

Local Impedance Estimation of NSLS-II Storage Ring with Bumped Orbit

754

J. Choi, G. Bassi, A. Blednykh, Y. Hidaka
BNL, Upton, Long Island, New York, USA

Funding: DOE contract No: DE-AC02- 98CH10886
As the newly constructed 3rd generation light source, NSLS-II is expected to provide the synchrotron radiation of ultra high brightness and flux with advanced insertion devices. To minimize the beam emittance, damping wigglers are used and the small aperture is located at the straight section with the damping wiggler and the corresponding vacuum camber is NEG coated. We used the local bump method to find the effect on the beam from the narrow aperture and the paper shows the results.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPMN025

Export •

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TUAB2

First Collective Effects Measurements in NSLS-II with ID's

1332

A. Blednykh, B. Bacha, G. Bassi, W.X. Cheng, J. Choi, Y. Hidaka, Y. Li, B. Podobedov, T.V. Shaftan, V. Smalyuk, T. Tanabe, G.M. Wang, F.J. Willeke, L.-H. Yu
BNL, Upton, Long Island, New York, USA

Funding: Work supported by DOE contract DE-AC02-98CH10886.
As another important milestone towards the final goal to store an average current of 500mA, the average current of 200mA, distributed within ~1000 bunches, was recently achieved in the NSLS-II storage ring after the installation of three Damping Wigglers and four In-Vacuum Undulators. First measurements of the collective effects and instability thresholds, both in single- and multi-bunch mode, are discussed.

Slides TUAB2 [2.691 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUAB2

Export •

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TUPMA050

NSLS-II Injector Commissioning and Initial Operation

1944

E.B. Blum, B. Bacha, G. Bassi, J. Bengtsson, A. Blednykh, S. Buda, W.X. Cheng, J. Choi, J. Cupolo, R. D'Alsace, M.A. Davidsaver, J.H. De Long, L. Doom, D.J. Durfee, R.P. Fliller, M. Fulkerson, G. Ganetis, F. Gao, C. Gardner, W. Guo, R. Heese, Y. Hidaka, Y. Hu, M.P. Johanson, B.N. Kosciuk, S. Kowalski, S.L. Kramer, S. Krinsky, Y. Li, W. Louie, M.A. Maggipinto, P. Marino, J. Mead, J. Oliva, D. Padrazo, K. Pedersen, B. Podobedov, R.S. Rainer, J. Rose, M. Santana, S. Seletskiy, T.V. Shaftan, O. Singh, P. Singh, V.V. Smaluk, R.M. Smith, T. Summers, J. Tagger, Y. Tian, W.H. Wahl, G.M. Wang, G.J. Weiner, F.J. Willeke, L. Yang, X. Yang, E. Zeitler, E. Zitvogel, P. Zuhoski
BNL, Upton, Long Island, New York, USA
A. Akimov, P.B. Cheblakov, I.N. Churkin, A.A. Derbenev, S.M. Gurov, S.E. Karnaev, V.A. Kiselev, A.A. Korepanov, E.B. Levichev, S.V. Sinyatkin, A.N. Zhuravlev
BINP SB RAS, Novosibirsk, Russia

The injector for the National Synchrotron Light Source II storage ring consists of a 3 GeV booster synchrotron and a 200 MeV S-band linac. The linac was designed to produce either a single bunch with a charge of 0.5 nC of electrons or a train of bunches up to 300 ns long containing a total charge of 15 nC. The booster was designed to accelerate up to 15 nC each cycle. Linac commissioning was completed in April 2012. Booster commissioning was started in November 2013 and completed in March 2014. All of the significant design goals were satisfied including beam emittance, energy spread, and transport efficiency. While the maximum booster charge accelerated was only 10 nC this has proven to be more than sufficient for storage ring commissioning. The injector has operated reliably during storage ring operation since then. Results will be presented showing measurements of injector operating parameters achieved during commissioning and initial operation. Operating experience and reliability during the first year of NSLS-II operation will be discussed.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUPMA050

Export •

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TUPMA053

Experience with First Turns Commissioning in NSLS-II Storage Ring

1950

S. Seletskiy, G. Bassi, J. Bengtsson, A. Blednykh, E.B. Blum, W.X. Cheng, J. Choi, R.P. Fliller, W. Guo, R. Heese, Y. Hidaka, S.L. Kramer, Y. Li, B. Podobedov, T.V. Shaftan, G.M. Wang, F.J. Willeke, L. Yang, X. Yang
BNL, Upton, Long Island, New York, USA

In this paper we describe our experience with commissioning of the first turns in the NSLS-II storage ring. We discuss the problems that we encountered and show how applying a dedicated first turns commissioning software allowed us to diagnose and resolve these problems.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUPMA053

Export •

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

TUPMA054

High Level Application for First Turns Commissioning in NSLS-II Storage Ring

1953

S. Seletskiy, A. Blednykh, J. Choi, Y. Hidaka, B. Podobedov, G. Shen, L. Yang
BNL, Upton, Long Island, New York, USA

The typical problems occurring during commissioning of the first turns in the storage rings include shorted coils or reversed polarity of the magnets, cross-cabling of magnets power supplies and reversed polarity of BPMs. In this paper we describe a dedicated high level control application, which was created and utilized for commissioning of the first turns in NSLS-II storage ring.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUPMA054

Export •

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

TUPHA005

Tools for NSLS II Commissioning

1971

G.M. Wang, G. Bassi, A. Blednykh, W.X. Cheng, J. Choi, L.R. Dalesio, M.A. Davidsaver, J.H. De Long, K. Ha, Y. Hidaka, Y. Hu, Y. Li, D. Padrazo, S. Seletskiy, T.V. Shaftan, G. Shen, K. Shroff, O. Singh, T. Summers, Y. Tian, F.J. Willeke, H. Xu, L. Yang, X. Yang
BNL, Upton, Long Island, New York, USA

The National Synchrotron Light Source II (NSLS-II) is a state of the art 3 GeV third generation light source at Brookhaven National Laboratory. As many facilities worldwide, NSLS II uses the EPICS control system to monitor and control all accelerator hardware. Control system studio (CSS) is used for simple tasks such as monitoring, display, setting of PVs. browsing the historical data, et. al. For more complex accelerator physics applications, a collection of scripts are mainly written in Python and part from Matlab during commissioning. With the close collaboration and fully support from control group, more and more CSS features were developed for operation convenience and several high level applications are interfaced with users in CSS panels for daily use based on softiocs. This paper will present the tools that we have been using for commissioning.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUPHA005

Export •

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

TUPHA006

NSLS-II Storage Ring Insertion Device and Front-End Commissioning

1974

G.M. Wang, C. Amundsen, G. Bassi, J. Bengtsson, A. Blednykh, E.B. Blum, W.X. Cheng, J. Choi, O.V. Chubar, T.M. Corwin, M.A. Davidsaver, L. Doom, W. Guo, D.A. Harder, P. He, Y. Hidaka, Y. Hu, P. Ilinski, C.A. Kitegi, S.L. Kramer, Y. Li, M. Musardo, D. Padrazo, B. Podobedov, K. Qian, R.S. Rainer, J. Rank, S. Seletskiy, T.V. Shaftan, S.K. Sharma, O. Singh, V. Smalyuk, R.M. Smith, T. Summers, T. Tanabe, F.J. Willeke, L. Yang, X. Yang, L.-H. Yu
BNL, Upton, Long Island, New York, USA

The National Synchrotron Light Source II (NSLS-II) is a state of the art 3 GeV third generation light source at Brookhaven National Laboratory. In the spring 2014, the storage ring was commissioning up to 50 mA without insertion device. In the fall, the project beamlines, includes seven insertion devices on six ID ports were commissioned within two and a half months. These beamlines consist of IXS, HXN, CSX-1, CSX-2, CHX, SRX, and XPD-1, from the radiation sources elliptically polarizing undulator (EPU), damping wiggler (DW) and in vacuum undulator (IVU) to cover the VUV through the very hard x-ray range. In this paper, a number of commissioning and operation experiences are discussed here, such as injection, lifetime, ID residual field and compensation, source point stability, beam alignment and tools for control, monitor and beam protection.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-TUPHA006

Export •

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