CERN Accelerating science

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1.
An ultra low-noise AC beam transformer and digital signal processing system for CERN's ELENA ring / Angoletta, M E (CERN) ; Carli, C (CERN) ; Caspers, F (CERN) ; Federmann, S (CERN) ; Molendijk, J (CERN) ; Pedersen, F (CERN) ; Sanchez-Quesada, J (CERN)
CERN’s Extra Low ENergy Antiproton (ELENA) ring is a new synchrotron that will be commissioned in 2016 to further decelerate the antiprotons coming from CERN’s Antiproton Decelerator (AD). Essential longitudinal diagnostics required for commissioning and operation include the intensity measurement for bunched and debunched beams and the measurement of 􀀧p/p for debunched beams to assess the electron cooling performance. [...]
2013 Published version from JACoW: PDF;
In : 2nd International Beam Instrumentation Conference, Oxford, UK, 16 - 19 Sep 2013, pp.atupf27
2.
Longitudinal beam diagnostic from a distributed electrostatic pick-up in CERN's ELENA ring / Angoletta, M E (CERN) ; Caspers, F (CERN) ; Federmann, S (CERN) ; Molendijk, J (CERN) ; Sanchez-Quesada, J (CERN) ; Secouet, P J (CERN) ; Søby, L (CERN) ; Pedersen, F (CERN) ; Timmins, M (CERN)
The CERN Extra Low ENergy Antiproton (ELENA) Ring is a new synchrotron that will be commissioned in 2016 to further decelerate the antiprotons coming from CERN’s Antiproton Decelerator (AD). Required longitudinal diagnostics include the intensity measurement for bunched and debunched beam and the measurement of Dp/p to assess the electron cooling performance. [...]
2013 Published version from JACoW: PDF;
In : 2nd International Beam Instrumentation Conference, Oxford, UK, 16 - 19 Sep 2013, pp.WEPF28
3.
A leading-edge hardware family for diagnostics applications and low-level RF in CERN's ELENA ring / Angoletta, M E (CERN) ; Blas, A (CERN) ; Jaussi, M (CERN) ; Leiononen, P (CERN) ; Levens, T E (CERN) ; Molendijk, J C (CERN) ; Sanchez-Quesada, J (CERN) ; Simonin, J (CERN)
The CERN Extra Low ENergy Antiproton (ELENA) Ring is a new synchrotron that will be commissioned in 2016 to further decelerate the antiprotons transferred from the CERN’s Antiproton Decelerator (AD). The requirements for the acquisition and treatment of signals for longitudinal diagnostics are very demanding, owing to the revolution frequency swing as well as to the digital signal processing required. [...]
2013 Published version from JACoW: PDF;
In : 2nd International Beam Instrumentation Conference, Oxford, UK, 16 - 19 Sep 2013, pp.TUPF28
4.
Initial Beam Results of CERN ELENA's Digital Low-Level RF System / Angoletta, Maria Elena (CERN) ; Albright, Simon (CERN) ; Energico, Salvatore (CERN) ; Hancock, Steven (CERN) ; Jaussi, Michael (CERN) ; Jones, Anthony (CERN) ; Molendijk, John (CERN) ; Paoluzzi, Mauro (CERN) ; Sanchez-Quesada, Jorge (CERN)
The Extra Low ENergy Antiproton (ELENA) decelerator is under commissioning at CERN. This decelerator is equipped with a new digital low-level RF (LLRF) system, in-house developed and belonging to the LLRF family already deployed in CERN's PS Booster and Low Energy Ion Ring (LEIR) synchrotrons. [...]
CERN-ACC-2017-264.- 2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-THPAB142 Fulltext: thpab142 - PDF; thpab142_2 - PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.THPAB142
5.
Elena Orbit and Schottky Measurement Systems / Søby, Lars (CERN) ; Angoletta, Maria Elena (CERN) ; Bau, Marco (U. Brescia) ; Ferrari, Marco (U. Brescia) ; Ferrari, Vittorio (U. Brescia) ; Marco-Hernandez, Ricardo (CERN) ; Molendijk, John (CERN) ; Pedersen, Flemming (CERN) ; Sanchez-Quesada, Jorge (CERN)
A new Extra Low ENergy Antiproton ring (ELENA) is under construction at CERN to further decelerate the antiprotons from the existing Antiproton Decelerator (AD) to an energy of just 100 keV. This contribution will describe the beam position system foreseen for ELENA and how it can be adapted for Schottky measurements. [...]
CERN-ACC-2015-307.- 2015 - 4 p. - Published in : (2015) , pp. MOPTY056 Published version from JACoW: PDF; External link: JACOW
In : 6th International Particle Accelerator Conference, Richmond, VA, USA, 3 - 8 May 2015, pp.MOPTY056
6.
The Orbit Measurement System for the CERN Extra Low Energy Antiproton Ring / Marqversen, Ole (CERN) ; Angoletta, Maria Elena (CERN) ; Jaussi, Michael (CERN) ; Marco-Hernandez, Ricardo (Valencia U., IFIC) ; Molendijk, John (CERN) ; Ruffieux, Romain (CERN) ; Sanchez-Quesada, Jorge (CERN) ; Søby, Lars (CERN)
The CERN Extra Low ENergy Antiproton ring (ELENA) intended to decelerate anti-protons from the CERN Antiproton Decelerator from 100Mev/c to 13.7MeV/c, has been equipped with an orbit measurement system consisting of 10 horizontal and 10 vertical electrostatic pick-ups. Using charge amplifiers the signals are converted into sum and difference signals that, once digitalized, are down converted to baseband and used to calculate intensity independent beam positions. [...]
2018 - 3 p. - Published in : 10.18429/JACoW-IBIC2017-TUPCF05 Fulltext: PDF;
In : 6th International Beam Instrumentation Conference, Grand Rapids, MI, USA, 20 -24 Aug 2017, pp.TUPCF05
7.
Initial longitudinal diagnostics for ELENA’s commissioning / Angoletta, Maria Elena (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN)
CERN’s Extra Low ENergy Antiproton (ELENA) ring underwent its second full year of beam commissioning in 2018 and succeeded in decelerating more than 1 E7 antiprotons to extraction energy. [...]
CERN-ACC-Note-2019-0051.
- 2019.
Full text
8.
The new digital Low-Level RF system for CERN's Extra Low ENergy Antiproton machine / Angoletta, Maria Elena (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN)
CERN’s new Extra Low ENergy Antiproton accelerator/decelerator (ELENA) completed its initial commissioning in 2018. This machine is equipped with a new digital Low-Level RF (LLRF) system that implements beam and cavity loops as well as longitudinal diagnostics. [...]
CERN-ACC-2019-252.- 2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-THPRB069 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.THPRB069
9.
Schottky Based Intensity Measurements and Errors Due to Statistical Fluctuations / Carli, Christian (CERN) ; Angoletta, Maria Elena (CERN) ; Caspers, Fritz (CERN) ; Jones, Owain Rhodri (CERN) ; Pedersen, Flemming (CERN) ; Sanchez-Quesada, Jorge (CERN) ; Søby, Lars (CERN)
The beam intensities at the Extra Low ENergy Antiproton ring ELENA are too low for standard beam current transformers and, thus, are measured with longitudinal Schottky diagnostics. This method is already successfully used at the Antiproton Decelerator since the commissioning of this machine. [...]
CERN-ACC-2017-281.- 2017 - 4 p. - Published in : 10.18429/JACoW-IPAC2017-MOPAB112 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.MOPAB112
10.
LLRF beam results on the first year of ELENA’s commissioning with beam / Angoletta, Maria Elena (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN) ; Sanchez Quesada, Jorge
CERN’s Extra Low ENergy Antiproton (ELENA) ring’s commissioning with beam started in earnest in March 2017. [...]
CERN-ACC-Note-2018-0014.
- 2018. - 26 p.
Full text

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