Single electron in a storage ring: a probe into the fundamental properties of synchrotron radiation and a powerful diagnostic tool

Lobach, Ihar; Nagaitsev, Sergei; Romanov, A. V.; Stancari, G.

doi:10.1088/1748-0221/17/02/p02014

Cited by 3 publications

(2 citation statements)

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“…[9] in a similar experiment setting. In addition, we will use the recorded detection times to study the synchrotron motion of a single electron in IOTA [10], similar to previous experiments in Novosibirsk [11,12].…”

Section: Introductionmentioning

confidence: 97%

Statistical Properties of Undulator Radiation

Lobach¹

2023

Springer Theses

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Two experiments were carried out to study the statistical properties of undulator radiation in the Integrable Optics Test Accelerator (IOTA) storage ring at Fermilab. The first experiment studied the turn-to-turn fluctuations in the power of the radiation generated by an electron bunch. The magnitude of these fluctuations depends on the 6D phase-space distribution of the electron bunch. In IOTA, we demonstrated that this effect can be used to measure some electron bunch parameters, small transverse emittances in particular. In the second experiment, a single electron was stored in the ring, emitting a photon only once per several hundred turns. In this regime, any classical interference-related collective effects were eliminated, and the quantum fluctuations could be studied in detail to search for possible deviations from the expected Poissonian photon statistics. In addition, the photocount arrival times were used to track the longitudinal motion of a single electron and to compare it with simulations. This allowed us to determine several dynamical parameters of the storage ring such as the rf cavity phase jitter and the dependence of the synchrotron motion period on amplitude.

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Section: Introductionmentioning

confidence: 97%

Statistical Properties of Undulator Radiation

Lobach¹

2023

Springer Theses

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“…Previous single-electron studies were focused on the longitudinal dynamics and reconstruction of mode amplitudes [1][2][3]. If combined, state-of-the-art methods allow tracking of 4 dynamical variables out of the 6 necessary to fully characterize particle motion in an accelerator.…”

Section: Introductionmentioning

confidence: 99%

Proof-of-Principle Studies on Betatron-Oscillation Phase Tracking of a Single Electron (BOPTSE) in IOTA Run 3

Romanov

Stancari

Santucci

2023

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We present a description and preliminary results of the proof-of-principle studies on betatronoscillation phase tracking of a single electron in the Fermilab IOTA storage ring during Run 3 (2021). We describe the general principles of the experiment, the optical diagnostics setup, the configuration of the ring, a chronology of the studies, the structure of the measured data, and results of the preliminary analysis of the collected data. It was observed that the coherence time of betatron oscillations exceeds 60,000 turns. The betatron tune of the single electron was accurately measured and compared with that of electron bunches. In addition, chromaticity was extracted from the combined analysis of synchrotron oscillations and betatron phase tracking.

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