1.
|
A New Beam Loading Compensation and Blowup Control System Using Multi-Harmonic Digital Feedback Loops in the CERN Proton Synchrotron Booster
/ Barrientos, Diego (CERN) ; Albright, Simon (CERN) ; Angoletta, Maria Elena (CERN) ; Findlay, Alan (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN)
As part of the LHC Injectors Upgrade, the CERN Proton Synchrotron Booster (PSB) has been upgraded with new wide-band Finemet cavities and a renovated Low-Level Radio Frequency system with digital cavity controllers implemented in FPGAs. Each controller synchronously receives the computed revolution frequency, used to generate 16 harmonic references. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 907-910
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.907-910
|
|
2.
|
Commissioning the New LLRF System of the CERN PS Booster
/ Albright, Simon (CERN) ; Angoletta, Maria Elena (CERN) ; Barrientos, Diego (CERN) ; Findlay, Alan (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN)
The PS Booster (PSB) is the first synchrotron in the injection chain for protons. The beams produced for the LHC and various fixed target experiments cover a very large parameter space. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2060-2063
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2060-2063
|
|
3.
|
Direct Impedance Measurement of the CERN PS Booster Finemet Cavities
/ Albright, Simon (CERN) ; Angoletta, Maria Elena (CERN) ; Barrientos, Diego (CERN) ; Findlay, Alan (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN)
Over CERN’s Long Shutdown 2, the conventional ferrite-loaded cavities of the PS Booster were replaced with wide-band Finemet-loaded cavities. The Finemet cavities bring many operational advantages, but also represent a significant broadband impedance source. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 2064-2067
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2064-2067
|
|
4.
|
Beam Commissioning of the New Digital Low-Level RF System for CERN’s AD
/ Angoletta, Maria Elena (CERN) ; Albright, Simon (CERN) ; Barrientos, Diego (CERN) ; Findlay, Alan (CERN) ; Jaussi, Michael (CERN) ; Rey, Anthony (CERN) ; Sumiński, Maciej (CERN)
CERN’s Antiproton Decelerator (AD) has been re-furbished to provide reliable operation for the Extra Low ENergy Antiproton ring (ELENA). In particular, AD was equipped with a new digital Low-Level RF (LLRF) system that was successfully commissioned during the summer 2021. [...]
2022 - 4 p.
- Published in : JACoW IPAC 2022 (2022) 911-914
Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.911-914
|
|
5.
|
Upgrade of CERN’s PSB digital Low-Level RF system
/ Angoletta, Maria Elena (CERN) ; Albright, Simon (CERN) ; Findlay, Alan (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN) ; Pittet, Nathan (CERN)
The CERN PS Booster (PSB) is the first circular accelerator in the LHC proton injector chain. The upgrade of this four-ring machine is underway within the framework of the LHC Injectors Upgrade project. [...]
CERN-ACC-2019-239.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-THPRB068
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPRB068
|
|
6.
|
The New LEIR Digital Low-Level RF System
/ Angoletta, Maria Elena (CERN) ; Albright, Simon (CERN) ; Findlay, Alan (CERN) ; Haase, Matthias (CERN) ; Hancock, Steven (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN) ; Paoluzzi, Mauro (CERN) ; Sanchez-Quesada, Jorge (CERN)
CERN's Low Energy Ion Ring (LEIR) low-level RF (LLRF) system has been successfully upgraded in 2016 to the new digital, LLRF family for frequency-sweeping synchrotrons developed at CERN. For LEIR it implements not only beam loops but also the voltage and phase loops required for the control of two Finemet-based High-Level RF (HLRF) systems. [...]
CERN-ACC-2017-236.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-THPAB144
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.THPAB144
|
|
7.
|
Operation and New Capabilities of CERN's Digital LLRF Family for Injectors
/ Angoletta, Maria Elena (CERN) ; Findlay, Alan (CERN) ; Rey, Anthony (CERN) ; Bielawski, Bartosz Przemyslaw (CERN) ; Barrientos, Diego (CERN) ; Suminski, Maciej (CERN) ; Soderen, Martin (CERN) ; Jaussi, Michael (CERN) ; Albright, Simon (CERN) ; Brischetto, Ylenia (CERN) et al.
CERN’s digital Low-Level RF (LLRF) family for injectors is deployed on CERN’s PS Booster (PSB), Low Energy Ion Ring (LEIR), Extra Low ENergy Antiproton (ELENA) ring and Antiproton Decelerator (AD). It implements multiple capabilities, including beam and cavity feedback loops, bunch shaping, longitudinal blowup, bunch splitting and longitudinal diagnostics.New capabilities are now available and the LLRF family is soon going to be deployed for tests also in CERN’s Proton Synchrotron (PS). [...]
2023 - 4 p.
- Published in : JACoW IPAC 2023 (2023) THPA094
Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.THPA094
|
|
8.
|
Beam Tests Using a Wide Band RF System Prototype in the CERN PS Booster
/ Paoluzzi, Mauro (CERN) ; Angoletta, Maria Elena (CERN) ; Findlay, Alan (CERN) ; Haase, Matthias (CERN) ; Jaussi, Michael (CERN) ; Jones, Anthony (CERN) ; Molendijk, John (CERN) ; Sanchez-Quesada, Jorge (CERN)
In the framework of the LHC Injectors Upgrade project (LIU) and in view of a complete replacement of the existing CERN PS Booster (PSB) RF systems, a small scale, wide band prototype cavity was installed in 2012 in the machine. Following the encouraging tests done using this limited set up, an almost full scale, RF system prototype has been built and installed in the PSB during the Long Shutdown 1 (LS1). [...]
CERN-ACC-2015-234; CERN-ACC-2015-235.-
2015 - 4 p.
- Published in : (2015) , pp. WEPHA015
Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.WEPHA015
|
|
9.
|
Control and Operation of a Wideband RF System in CERN's PS Booster
/ Angoletta, Maria Elena (CERN) ; Albright, Simon (CERN) ; Findlay, Alan (CERN) ; Haase, Matthias (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN) ; Paoluzzi, Mauro (CERN) ; Sanchez-Quesada, Jorge (CERN)
A prototype wideband High-Level RF (HLRF) sys-tem based on Finemet metal alloy has been installed in CERN's PS Booster (PSB) Ring 4 in 2012, within the frame of the LHC Injectors Upgrade (LIU) project. A digital Low-Level RF (LLRF) system was used to control the HLRF system to ascertain the capabilities of the combined system, especially under heavy beam loading. [...]
CERN-ACC-2017-181.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-THPAB141
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.THPAB141
|
|
10.
|
Design of the New Wideband RF System for the CERN PS Booster
/ Paoluzzi, Mauro (CERN) ; Albright, Simon (CERN) ; Angoletta, Maria Elena (CERN) ; Arnaudon, Luca (CERN) ; Energico, Salvatore (CERN) ; Findlay, Alan (CERN) ; Haase, Matthias (CERN) ; Jaussi, Michael (CERN) ; Jones, Anthony (CERN) ; Landré, David (CERN) et al.
For the renovation and upgrade of the CERN PS Booster (PSB) RF systems a development project was launched in 2012. The design, based on a new approach, aimed at replacing the existing tuned, narrowband RF systems with wideband, modular, solid-state driven units. [...]
CERN-ACC-2016-308.-
2016 - 3 p.
- Published in : 10.18429/JACoW-IPAC2016-MOPMW024
Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.MOPMW024
|
|