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Title |
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| TUZE1 |
Experimental Phase-Space Tracking of a Single Electron in a Storage Ring |
329 |
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- A.L. Romanov, J.K. Santucci, G. Stancari, A. Valishev
Fermilab, Batavia, Illinois, USA
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This paper presents the results of the first ever experimental tracking of the betatron and synchrotron phases for a single electron in the Fermilab’s IOTA ring. The reported technology makes it is possible to fully track a single electron in a storage ring, which requires tracking of amplitudes and phases for both, slow synchrotron and fast betatron oscillations.
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Slides TUZE1 [3.600 MB]
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| DOI • |
reference for this paper
※ doi:10.18429/JACoW-NAPAC2022-TUZE1
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| About • |
Received ※ 08 August 2022 — Revised ※ 11 August 2022 — Accepted ※ 21 August 2022 — Issue date ※ 27 August 2022 |
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| TUPA02 |
Characterization of Octupole Elements for IOTA |
351 |
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- J.N. Wieland
MSU, East Lansing, Michigan, USA
- J.D. Jarvis, A.L. Romanov, A. Valishev
Fermilab, Batavia, Illinois, USA
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Funding: Work partially supported by the US Department of Energy, Office of Science, High Energy Physics under Cooperative Agreement award number DE-SC0018362 and Michigan State University.
The Integrable Optics Test Accelerator (IOTA) is a research storage ring constructed and operated at Fermilab to demonstrate the advantages of nonlinear integrable lattices. One of the nonlinear lattice configurations with one integral of motion is based on a string of short octupoles. The results of the individual magnet’s characterizations, which were necessary to determine their multipole composition and magnetic centers, are presented. This information was used to select and align the best subset of octupoles for the IOTA run 4.
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| DOI • |
reference for this paper
※ doi:10.18429/JACoW-NAPAC2022-TUPA02
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| About • |
Received ※ 03 August 2022 — Revised ※ 08 August 2022 — Accepted ※ 09 August 2022 — Issue date ※ 08 September 2022 |
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FRXD1 |
Demonstration of Optical Stochastic Cooling in an Electron Storage Ring |
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- J.D. Jarvis, D.R. Broemmelsiek, K. Carlson, D.R. Edstrom, V.A. Lebedev, S. Nagaitsev, H. Piekarz, A.L. Romanov, J. Ruan, J.K. Santucci, G. Stancari, A. Valishev
Fermilab, Batavia, Illinois, USA
- S. Chattopadhyay, A.J. Dick, P. Piot
Northern Illinois University, DeKalb, Illinois, USA
- I. Lobach
University of Chicago, Chicago, Illinois, USA
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Optical stochastic cooling (OSC), proposed nearly thirty years ago, replaces the conventional microwave elements of stochastic cooling (SC) with optical-frequency analogs, such as undulators, optical lenses and optical amplifiers. Here we discuss the first experimental observation of OSC, which was performed at the Fermi National Accelerator Laboratory’s Integrable Optics Test Accelerator (IOTA) with 100-MeV electrons and a radiation wavelength of 950 nm. The experiment employed a non-amplified configuration of OSC and achieved a longitudinal damping rate close to one order of magnitude larger than the beam’s natural damping due to synchrotron radiation. The integrated system demonstrated sub-femtosecond stability and a bandwidth of ~20 THz, a factor of ~2000-times higher than conventional microwave SC systems. Coupling to the transverse planes enabled simultaneous cooling of the beam in all degrees of freedom. This first demonstration of SC at optical frequencies serves as a foundation for more advanced experiments with high-gain optical amplification and advances opportunities for future operational OSC systems at colliders and other accelerator facilities.
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Slides FRXD1 [32.041 MB]
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