Paper | Title | Other Keywords | Page |
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MOPAB334 | Status and Recent Development of FAIR Ring RF Systems | cavity, LLRF, power-supply, operation | 1037 |
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Funding: GSI Helmholtzzentrum für Schwerionenforschung GmbH Five different Ring RF Systems are required for the operation of FAIR (Facility for Antiproton and Ion Research). These systems have to operate at frequencies between 310 kHz and 3.2 MHz, with gap voltages up to 40 kVp and duty cycles from 5·10-4 up to cw. All systems will be realized using inductively loaded (ferrite or magnetic alloy) cavities driven by tetrode-based amplifiers fed by switch-mode power supplies. To stabilize the amplitude, resonance frequency and phase, versatile digital feedback and feedforward control will be used. This contribution will present the latest development on the power part and the LLRF of the four RF systems of the SIS100 (SIS100 Acceleration, SIS100 Bunch Compression, SIS100 Barrier Bucket and SIS100 Longitudinal Feedback) as well as the CR Debuncher system which is part of the Collector Ring. The progress of these systems varies by a large degree. This note will give an overview regarding the status of the design, procurement, realization, testing, optimization, commissioning and preparation for installation of these RF systems. |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-MOPAB334 | ||
About • | paper received ※ 18 May 2021 paper accepted ※ 07 June 2021 issue date ※ 12 August 2021 | ||
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TUPAB051 | Elettra and Elettra 2.0 | emittance, insertion, insertion-device, coupling | 1474 |
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The status of the Italian 2.4/2.0 GeV third generation light source Elettra is presented together with the future upgrade concerning the new ultra-low emittance light source Elettra 2.0 that will provide ultra-high brilliance while the very short pulses feasibility study for time resolved experiments is in progress. | |||
Poster TUPAB051 [1.632 MB] | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB051 | ||
About • | paper received ※ 10 May 2021 paper accepted ※ 27 May 2021 issue date ※ 20 August 2021 | ||
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TUPAB333 | Status of PIP-II 650 MHz Prototype Dressed Cavity Qualification | cavity, SRF, cryomodule, superconductivity | 2279 |
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Funding: This manuscript has been authored by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the U.S. Department of Energy, Office of Science, Office of High Energy Physics. Low-beta and high-beta sections of PIP-II linac will use nine low-beta cryomodules with four cavities each and four high-beta cryomodules with six cavities each. These cavities will be produced and qualified in collaboration between Fermilab and the international partner labs. Prior to their installation into prototype cryomodules, several dressed cavities, which include jacketed cavities, high power couplers, and tuners, will be qualified in STC horizontal test bed at Fermilab. After qualification of bare β = 0.9 cavities at Fermilab, several pre-production β = 0.92 and β = 0.61 cavities have been and are being fabricated and qualified. Procurements have also been started for high power couplers and tuners. In this contribution we present the current status of prototype dressed cavity qualification for PIP-II. |
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Poster TUPAB333 [6.247 MB] | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB333 | ||
About • | paper received ※ 23 May 2021 paper accepted ※ 19 July 2021 issue date ※ 19 August 2021 | ||
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TUPAB347 | Development of a 166-MHz 260-kW Solid-State Power Amplifier for High Energy Photon Source | controls, photon, power-supply, cavity | 2315 |
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166-MHz 260-kW solid-state power amplifiers have been chosen to drive the 166.6-MHz superconducting cavities for the storage ring of High Energy Photon Source. Highly modular yet compact are desired. A total number of 112 amplifier modules of 3 kW each are combined in a multi-stage power combining topology. The final output is of 9-3/16" 50 Ω coaxial rigid line. Each amplifier module consists of 3 LDMOS transistors with individual circulator and load. Thermal simulations of the amplifier module have been conducted to optimize cooling capabilities for both travelling-wave and full-reflection operation scenarios. High efficiency, sufficient redundancy and excellent RF performances of the 260-kW system are demonstrated. A control system is also integrated and EPICS is used to manage the monitored data. The design and test results of the amplifier system are presented in this paper. | |||
Poster TUPAB347 [1.972 MB] | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-TUPAB347 | ||
About • | paper received ※ 19 May 2021 paper accepted ※ 21 June 2021 issue date ※ 29 August 2021 | ||
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WEXB01 | The ESS Elliptical Cavity Cryomodules Production at CEA | cryomodule, cavity, site, vacuum | 2536 |
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CEA in Kind contribution to the ESS superconducting LINAC includes 30 elliptical medium and high-beta cryomodules. CEA is in charge of the production of all the components (except the cavities delivered by LASA and STFC) as well as the assembly of the cryomodules and a few cryogenic and RF tests. The power couplers operating at a maximum power of 1.1MW on a 3.6ms pulse at 14Hz are conditioned at high RF power on a dedicated stand. The assembly of the cryomodules is performed at CEA by a private Company under the supervision of CEA. This paper presents the status of the cryomodules production and the infrastructure dedicated to this project at CEA Saclay. | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEXB01 | ||
About • | paper received ※ 18 May 2021 paper accepted ※ 19 July 2021 issue date ※ 30 August 2021 | ||
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WEPAB319 | Open XAL Status Report 2021 | framework, quadrupole, lattice, controls | 3421 |
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The Open XAL accelerator physics software platform is being developed through international collaboration among several facilities since 2010. The goal of the collaboration is to establish Open XAL as a multi-purpose software platform supporting a broad range of tool and application development in accelerator physics and high-level control (Open XAL also ships with a suite of general-purpose accelerator applications). This paper discusses progress in beam dynamics simulation, new RF models, and updated application framework along with new generic accelerator physics applications. We present the current status of the project, a roadmap for continued development, and an overview of the project status at each participating facility. | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB319 | ||
About • | paper received ※ 19 May 2021 paper accepted ※ 21 July 2021 issue date ※ 11 August 2021 | ||
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WEPAB320 | RecCeiver-ETCD: A Bridge Between ETCD and ChannelFinder | EPICS, operation, insertion, database | 3424 |
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Funding: Work supported by the U.S. Department of Energy Office of Science under Cooperative Agreement DE-SC0000661 Managing EPICS Process Variables’~(PVs) metadata, such as the host and the contact, is one of the important tasks for the operation of large-scale accelerator facilities with minimal downtime. Record Sychronizer~(RecSync) provides a way to manage such crucial information in an EPICS Input-Output Controller~(IOC). RecCeiver-ETCD is the server component of the RecSync-ETCD, or an extension of RecCeiver for ETCD. In the previous work, the client component of RecSync, or RecCaster, has been extended to RecCaster-ETCD to store the metadata into an ETCD key-value store. An important remaining step to the production use is to introduce a connection between ETCD and ChannelFinder, which is achieved by RecCeiver in the RecSync system. RecCeiver-ETCD plays the role of the original RecCeiver in the RecSync-ETCD system. RecCeiver-ETCD is designed to perform the specific operation, bridging the communication between ETCD and ChannelFinder. In addition, its simple implementation does not hold it down to ChannelFinder and makes it easy to extend RecCeiver-ETCD out to the other applications. |
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DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB320 | ||
About • | paper received ※ 11 May 2021 paper accepted ※ 19 July 2021 issue date ※ 17 August 2021 | ||
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THPAB356 | Progress and Status on Civil Construction of the SIS100 Accelerator Building | site, controls, radiation, HOM | 4493 |
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Besides the accelerator machine itself, civil construction of the accelerator ring tunnel building in the northern area of the FAIR campus is a core activity of the rapidly progressing FAIR project. It will facilitate and supply the future SIS100 accelerator at 17m underground level and has been growing continuously and according to schedule since groundbreaking in 2017. This contribution presents the current status of the civil construction progress and gives an optimistic forecast for the preparation of machine installation. | |||
DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2021-THPAB356 | ||
About • | paper received ※ 20 May 2021 paper accepted ※ 06 July 2021 issue date ※ 15 August 2021 | ||
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