FEL2017 - List of Authors (Shih, K.)

Paper	Title	Page
MOP041	Commissioning of FEL-Based Coherent Electron Cooling System	132
	V. Litvinenko, Z. Altinbas, R. Anderson, S.A. Belomestnykh, K.A. Brown, J.C.B. Brutus, A.J. Curcio, A. Di Lieto, C. Folz, D.M. Gassner, T. Hayes, R.L. Hulsart, P. Inacker, J.P. Jamilkowski, Y.C. Jing, D. Kayran, R. Kellermann, R.F. Lambiase, G.J. Mahler, M. Mapes, A. Marusic, W. Meng, K. Mernick, R.J. Michnoff, T.A. Miller, M.G. Minty, G. Narayan, P. Orfin, D. Phillips, I. Pinayev, T. Rao, D. Ravikumar, J. Reich, G. Robert-Demolaize, T. Roser, S.K. Seberg, F. Severino, B. Sheehy, J. Skaritka, L. Smart, K.S. Smith, L. Snydstrup, V. Soria, R. Than, C. Theisen, J.E. Tuozzolo, J. Walsh, E. Wang, G. Wang, D. Weiss, B. P. Xiao, T. Xin, A. Zaltsman, Z. Zhao BNL, Upton, Long Island, New York, USA C.H. Boulware, T.L. Grimm Niowave, Inc., Lansing, Michigan, USA K. Mihara Stony Brook University, Stony Brook, USA I. Petrushina SUNY SB, Stony Brook, New York, USA K. Shih SBU, Stony Brook, New York, USA W. Xu PKU, Beijing, People's Republic of China
	Funding: DoE NP office, grant DE-FOA-0000632, NSF grant PHY-1415252 In this talk we are presenting the most recent results from the commissioning of unique Coherent Electron Cooling system, which is using an FEL amplifier to facilitate cooling of hadrons by an electron beam. We present achieved results as well as changes we encountered in the process.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-FEL2017-MOP041
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TUP034	Novel Aspects of Beam Dynamics in CeC SRF Gun and SRF Accelerator	313
	I. Petrushina SUNY SB, Stony Brook, New York, USA T. Hayes, Y.C. Jing, D. Kayran, V. Litvinenko, G. Narayan, I. Pinayev, F. Severino, K.S. Smith, G. Wang BNL, Upton, Long Island, New York, USA K. Mihara Stony Brook University, Stony Brook, USA K. Shih SBU, Stony Brook, New York, USA
	Funding: DoE NP office, grant DE-FOA-0000632, NSF grant PHY-1415252. A 15 MeV CW SRF accelerator had been commissioned at Brookhaven National Laboratory to test the coherent electron cooling concept. The accelerator consists of an SRF 113-MHz photoemission gun, two 500 MHz bunching cavities and a 704-MHz 5-cell SRF linac. In this paper we describe our experience with this system with focus on unusual phenomena, such as multipacting in the SRF gun. We also discuss issues of wakefields in the CeC accelerator.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-FEL2017-TUP034
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TUP069	Simulating Beam Dynamics in Coherent Electron-Cooling Accelerator with WARP	374
	K. Shih SBU, Stony Brook, New York, USA Y.C. Jing, V. Litvinenko, I. Pinayev, G. Wang BNL, Upton, Long Island, New York, USA K. Mihara Stony Brook University, Stony Brook, USA I. Petrushina SUNY SB, Stony Brook, New York, USA
	Funding: DoE NP office, grant DE-FOA-0000632, NSF grant PHY-1415252. Coherent Electron Cooling (CeC) is a novel cooling technique based on amplification of interaction between hadrons and electron by an FEL. If proven, this CeC could bring a revolution in hadron and electron-hadron colliders. A dedicated CeC proof-of-principle experiment is under way at RHIC collider (BNL) using a sophisticated SRF accelerator for generating and accelerating electron beam. This paper is dedicated to studies of beam dynamics in the CeC accelerator and specifically to emittance preservation in its ballistic compressions section. Two 500-MHz RF cavities are used for generating the necessary energy chirp leading in 1.56-MeV, 0.5-nsec-long electron bunched to compress them to 25-psec duration downstream. During the commissioning of the CeC accelerator we noticed that beam emittance can be strongly degraded when electron beam passes these 500 MHz RF cavities off-axis. We used a full 3D PIC code Wrap to simulate effect of the off-axis beam propagation through these
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-FEL2017-TUP069
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Commissioning of FEL-Based Coherent Electron Cooling System

132

V. Litvinenko, Z. Altinbas, R. Anderson, S.A. Belomestnykh, K.A. Brown, J.C.B. Brutus, A.J. Curcio, A. Di Lieto, C. Folz, D.M. Gassner, T. Hayes, R.L. Hulsart, P. Inacker, J.P. Jamilkowski, Y.C. Jing, D. Kayran, R. Kellermann, R.F. Lambiase, G.J. Mahler, M. Mapes, A. Marusic, W. Meng, K. Mernick, R.J. Michnoff, T.A. Miller, M.G. Minty, G. Narayan, P. Orfin, D. Phillips, I. Pinayev, T. Rao, D. Ravikumar, J. Reich, G. Robert-Demolaize, T. Roser, S.K. Seberg, F. Severino, B. Sheehy, J. Skaritka, L. Smart, K.S. Smith, L. Snydstrup, V. Soria, R. Than, C. Theisen, J.E. Tuozzolo, J. Walsh, E. Wang, G. Wang, D. Weiss, B. P. Xiao, T. Xin, A. Zaltsman, Z. Zhao
BNL, Upton, Long Island, New York, USA
C.H. Boulware, T.L. Grimm
Niowave, Inc., Lansing, Michigan, USA
K. Mihara
Stony Brook University, Stony Brook, USA
I. Petrushina
SUNY SB, Stony Brook, New York, USA
K. Shih
SBU, Stony Brook, New York, USA
W. Xu
PKU, Beijing, People's Republic of China

Funding: DoE NP office, grant DE-FOA-0000632, NSF grant PHY-1415252
In this talk we are presenting the most recent results from the commissioning of unique Coherent Electron Cooling system, which is using an FEL amplifier to facilitate cooling of hadrons by an electron beam. We present achieved results as well as changes we encountered in the process.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-FEL2017-MOP041

Export •

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

TUP034

Novel Aspects of Beam Dynamics in CeC SRF Gun and SRF Accelerator

313

I. Petrushina
SUNY SB, Stony Brook, New York, USA
T. Hayes, Y.C. Jing, D. Kayran, V. Litvinenko, G. Narayan, I. Pinayev, F. Severino, K.S. Smith, G. Wang
BNL, Upton, Long Island, New York, USA
K. Mihara
Stony Brook University, Stony Brook, USA
K. Shih
SBU, Stony Brook, New York, USA

Funding: DoE NP office, grant DE-FOA-0000632, NSF grant PHY-1415252.
A 15 MeV CW SRF accelerator had been commissioned at Brookhaven National Laboratory to test the coherent electron cooling concept. The accelerator consists of an SRF 113-MHz photoemission gun, two 500 MHz bunching cavities and a 704-MHz 5-cell SRF linac. In this paper we describe our experience with this system with focus on unusual phenomena, such as multipacting in the SRF gun. We also discuss issues of wakefields in the CeC accelerator.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-FEL2017-TUP034

Export •

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

TUP069

Simulating Beam Dynamics in Coherent Electron-Cooling Accelerator with WARP

374

K. Shih
SBU, Stony Brook, New York, USA
Y.C. Jing, V. Litvinenko, I. Pinayev, G. Wang
BNL, Upton, Long Island, New York, USA
K. Mihara
Stony Brook University, Stony Brook, USA
I. Petrushina
SUNY SB, Stony Brook, New York, USA

Funding: DoE NP office, grant DE-FOA-0000632, NSF grant PHY-1415252.
Coherent Electron Cooling (CeC) is a novel cooling technique based on amplification of interaction between hadrons and electron by an FEL. If proven, this CeC could bring a revolution in hadron and electron-hadron colliders. A dedicated CeC proof-of-principle experiment is under way at RHIC collider (BNL) using a sophisticated SRF accelerator for generating and accelerating electron beam. This paper is dedicated to studies of beam dynamics in the CeC accelerator and specifically to emittance preservation in its ballistic compressions section. Two 500-MHz RF cavities are used for generating the necessary energy chirp leading in 1.56-MeV, 0.5-nsec-long electron bunched to compress them to 25-psec duration downstream. During the commissioning of the CeC accelerator we noticed that beam emittance can be strongly degraded when electron beam passes these 500 MHz RF cavities off-axis. We used a full 3D PIC code Wrap to simulate effect of the off-axis beam propagation through these

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-FEL2017-TUP069

Export •

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