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| WEOYSP1 |
Experiments with Undulator Radiation, Emitted by a Single Electron |
1628 |
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- I. Lobach
ANL, Lemont, Illinois, USA
- S. Nagaitsev, A.L. Romanov, A.V. Shemyakin, G. Stancari
Fermilab, Batavia, Illinois, USA
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Funding: The work is supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357.
We study a single electron, circulating in the Fermilab IOTA storage ring and interacting with an undulator through single and multi-photon emissions. The focus of this research is on single-photon and two-photon undulator emissions. We begin by using one Single Photon Avalanche Diode (SPAD) detector to detect the undulator radiation photons and search for possible deviations from the expected Poissonian photon statistics. Then, we go on to use a two-photon interferometer consisting of two SPAD detectors separated by a beam splitter. This allows to test if there is any correlation in the detected photon pairs. In addition, the photocount arrival times can be 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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Slides WEOYSP1 [10.952 MB]
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2022-WEOYSP1
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| About • |
Received ※ 05 June 2022 — Revised ※ 25 June 2022 — Accepted ※ 03 July 2022 — Issue date ※ 27 June 2022 |
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| WEOYSP2 |
First Electron Beam of the ThomX Project |
1632 |
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- C. Bruni, M. Alkadi, J-N. Cayla, I. Chaikovska, S. Chancé, V. Chaumat, O. Dalifard, N. Delerue, K. Dupraz, M. El Khaldi, N. ElKamchi, E.E. Ergenlik, P. Gauron, A. Gonnin, E. Goutierre, H. Guler, M. Jacquet, V. Kubytskyi, P. Lepercq, F. Letellier-Cohen, J.C. Marrucho, B. Mercier, E. Mistretta, H. Monard, A. Moutardierpresenter, M. Omeich, V. Soskov, F. Wicek
Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France
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Funding: The present work is financed by the French National Research Agency (ANR) under the Equipex program ANR-10-EQPX-0051.
The ThomX accelerator beam commissioning phase is now ongoing. The 50 MeV electron accelerator complex consists of a 50 MeV linear accelerator and a pulsed mode ring. It is dedicated to the production of X-rays by Compton backscattering. The performance of the beam at the interaction point is demanding in terms of emittance, charge, energy spread and transverse size. The choice of an undamped ring in pulsed mode also stresses the performance of the beam from the linear accelerator. Thus, commissioning includes a beam based alignment and a simulation/experimental matching procedure to reach the X-ray beam requirements. We will present the first 50 MeV electron beam obtained with ThomX and its characteristics.
on behalf of the ThomX collaboration : ThomX collaboration, https://thomx.ijclab.in2p3. fr/collaboration-thomx/, [Online; accessed 19-May- 2022].
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Slides WEOYSP2 [80.558 MB]
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2022-WEOYSP2
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| About • |
Received ※ 08 June 2022 — Revised ※ 21 June 2022 — Accepted ※ 04 July 2022 — Issue date ※ 06 July 2022 |
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| WEOYSP3 |
Operation Experience with SESAME RF System |
1636 |
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- D.S. Foudeh, A.I. Kurdi, N.Kh. Sawaipresenter
SESAME, Allan, Jordan
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SESAME RF system has been in operation since 2017 where the operational electron beam current has been increased from 100mA to 300mA since then. The higher operational beam current together with the need to have longer beam lifetime to reduce number of injections per day required higher forward RF power, On the other hand; more attention needed to be paid to monitor and tackle the current driven High Order Modes and to respect the limitation on the forward RF power coming from the solid state amplifiers. In this paper we describe the RF system and report on the challenges we faced in addition to the operational experience we had with the RF system and solid state amplifiers.
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Slides WEOYSP3 [4.207 MB]
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2022-WEOYSP3
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| About • |
Received ※ 03 June 2022 — Revised ※ 10 June 2022 — Accepted ※ 17 June 2022 — Issue date ※ 07 July 2022 |
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