| Paper |
Title |
Page |
| TUPOST013 |
Concept and Development of 65 kW Solid-State RF Amplifiers for Sirius |
868 |
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- M. Hoffmann Wallner, A.P.B. Lima
LNLS, Campinas, Brazil
- R.H.A. Farias
CNPEM, Campinas, SP, Brazil
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Sirius is a 4th generation synchrotron light source currently operating with 100 mA stored beam and one room temperature RF cavity driven by two 65 kW solid-state amplifiers (SSAs). After installation of the cryogenic plant, two superconducting (SC) RF cavities are planned to replace the room temperature cavity. Each SC cavity is going to be driven by a 250 kW RF signal at 500 MHz, resulting from the combination of four 65 kW RF SSAs. Due to the recent development of 900 W solid-state power amplifier modules, a new topology is proposed for the four amplifiers that still need to be constructed. For the amplifier’s combining stage, a cavity combiner with 80 input ports was simulated. For the dividing stage, 8-way and 10-way power splitters were designed. The general scheme of the amplifier is presented, as well as simulation and measurement results.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2022-TUPOST013
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| About • |
Received ※ 08 June 2022 — Revised ※ 12 June 2022 — Accepted ※ 12 June 2022 — Issue date ※ 03 July 2022 |
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| TUPOST014 |
Sirius Storage Ring RF System Status Update |
872 |
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- A.P.B. Lima, D. Daminelli, M. Hoffmann Wallner, F.K.G. Hoshino
LNLS, Campinas, Brazil
- I. Carvalho de Almeida, R.H.A. Farias
CNPEM, Campinas, SP, Brazil
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Sirius’s nominal operation phase consists of two 500 MHz CESR-B type superconducting cavities, each being driven by four 65 kW solid-state amplifiers, and a passive superconducting third harmonic cavity. Currently a normal conducting 7-cell PETRA cavity is being used along with two 65 kW RF amplifiers and was recently able to achieve 100 mA stored current. The performance of the storage ring RF system and the updated installation plans update are presented and discussed.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2022-TUPOST014
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| About • |
Received ※ 08 June 2022 — Revised ※ 10 June 2022 — Accepted ※ 16 June 2022 — Issue date ※ 23 June 2022 |
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| TUPOMS002 |
Status of Sirius Operation |
1385 |
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- L. Liu, M.B. Alves, A.C.S. Oliveira, X.R. Resende, R.M. Seraphim, H. Westfahl Jr., F.H. de Sá
LNLS, Campinas, Brazil
- R.H.A. Farias, S.R. Marques
CNPEM, Campinas, SP, Brazil
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SIRIUS is a Synchrotron Light Source Facility based on a 3 GeV electron storage ring with 518 m circumfer-ence and 250 pm.rad emittance. The facility was built and is operated by the Brazilian Synchrotron Light Laboratory (LNLS), located in the CNPEM campus, in Campinas, Brazil. The accelerator commissioning and operation has been split into 2 phases: Phase0, corresponding to the initial accelerator commissioning with 6 beamlines, has been completed, and the project is now in preparation for Phase1, with full accelerator design performance and 14 beamlines in operation. We report on the status of SIRI-US last year operation and ongoing activities towards achieving completion of Phase1.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2022-TUPOMS002
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| About • |
Received ※ 08 June 2022 — Accepted ※ 17 June 2022 — Issue date ※ 29 June 2022 |
|
| Cite • |
reference for this paper using
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