IBIC2017 - List of Authors (Fedotov, A.V.)

Paper	Title	Page
WEPCF05	Low Field NMR Probe Commissioning In LEReC Energy Spectrometer	423
	T.A. Miller, M. Blaskiewicz, A.V. Fedotov, D.M. Gassner, J. Kewisch, M.G. Minty, S. Seletskiy, H. Song, P. Thieberger, P. Wanderer BNL, Upton, Long Island, New York, USA R.B. Boucher, C. Germain, J-C. Germain Caylar Scientific Instrumentation, Villebon-sur-Yvette, France R.B. Boucher University Paris Sud, Orsay, France
	Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy Low Energy RHIC electron Cooling (LEReC) is planned during a 7.7 - 20 GeV/n run with Au+79 starting in 2019 (200 GeV/n center-of-mass typical), to explore the existence and location of the QCD critical point. An electron accelerator for LEReC is being constructed to provide a beam to cool both the blue & yellow RHIC ion beams by co-propagating a 10 - 50 mA electron beam of 1.6 - 2.7 MeV. For effective cooling of the ion beam, the electron and ion beam energies must be matched with 10^-4 accuracy. As the energy of the RHIC ion beam can be known to <1×10-4, the absolute energy of the electron beam must also be measured to 10-4 accuracy. A 180° bend transport magnet will be used as an energy spectrometer for the electron beam providing fields in the range of 180 - 325 gauss. A Nuclear Magnetic Resonance (NMR) gaussmeter has been customized to measure the field in the magnet (to as low as 143 gauss) with an accuracy of 50 milligauss and a noise floor of < 20 milligauss. The concept of the magnetic spectrometer and details and commissioning performance of the NMR instrument are presented in this paper.
	Poster WEPCF05 [6.584 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-WEPCF05
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TH1AB4	Status of the LEReC Machine Protection System	487
	S. Seletskiy, Z. Altinbas, D. Bruno, M.R. Costanzo, A.V. Fedotov, D.M. Gassner, X. Gu, L.R. Hammons, J. Hock, P. Inacker, J.P. Jamilkowski, D. Kayran, J. Kewisch, C. Liu, K. Mernick, T.A. Miller, M.G. Minty, M.C. Paniccia, W.E. Pekrul, I. Pinayev, V. Ptitsyn, K.S. Smith, R. Than, P. Thieberger, J.E. Tuozzolo, W. Xu, Z. Zhao BNL, Upton, Long Island, New York, USA
	The low energy RHIC Electron Cooler (LEReC) will be operating with the electron beams having up to 140 kW power. It was determined that the missteered electron beam can damage the vacuum chamber and in-vacuum components within 20 us. We protect our accelerator against such a catastrophic scenario by a dedicated machine protection system (MPS). In this paper we describe the current status of the LEReC MPS work. We consider our experience with the commissioning and operation of the scaled down MPS system used for the LEReC gun test beamline and discuss the work on the MPS designed for the commissioning of the full LEReC accelerator.
	Slides TH1AB4 [2.906 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-TH1AB4
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Paper

Title

Page

Low Field NMR Probe Commissioning In LEReC Energy Spectrometer

423

T.A. Miller, M. Blaskiewicz, A.V. Fedotov, D.M. Gassner, J. Kewisch, M.G. Minty, S. Seletskiy, H. Song, P. Thieberger, P. Wanderer
BNL, Upton, Long Island, New York, USA
R.B. Boucher, C. Germain, J-C. Germain
Caylar Scientific Instrumentation, Villebon-sur-Yvette, France
R.B. Boucher
University Paris Sud, Orsay, France

Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy
Low Energy RHIC electron Cooling (LEReC) is planned during a 7.7 - 20 GeV/n run with Au+79 starting in 2019 (200 GeV/n center-of-mass typical), to explore the existence and location of the QCD critical point. An electron accelerator for LEReC is being constructed to provide a beam to cool both the blue & yellow RHIC ion beams by co-propagating a 10 - 50 mA electron beam of 1.6 - 2.7 MeV. For effective cooling of the ion beam, the electron and ion beam energies must be matched with 10^-4 accuracy. As the energy of the RHIC ion beam can be known to <1×10-4, the absolute energy of the electron beam must also be measured to 10-4 accuracy. A 180° bend transport magnet will be used as an energy spectrometer for the electron beam providing fields in the range of 180 - 325 gauss. A Nuclear Magnetic Resonance (NMR) gaussmeter has been customized to measure the field in the magnet (to as low as 143 gauss) with an accuracy of 50 milligauss and a noise floor of < 20 milligauss. The concept of the magnetic spectrometer and details and commissioning performance of the NMR instrument are presented in this paper.

Poster WEPCF05 [6.584 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-WEPCF05

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TH1AB4

Status of the LEReC Machine Protection System

487

S. Seletskiy, Z. Altinbas, D. Bruno, M.R. Costanzo, A.V. Fedotov, D.M. Gassner, X. Gu, L.R. Hammons, J. Hock, P. Inacker, J.P. Jamilkowski, D. Kayran, J. Kewisch, C. Liu, K. Mernick, T.A. Miller, M.G. Minty, M.C. Paniccia, W.E. Pekrul, I. Pinayev, V. Ptitsyn, K.S. Smith, R. Than, P. Thieberger, J.E. Tuozzolo, W. Xu, Z. Zhao
BNL, Upton, Long Island, New York, USA

The low energy RHIC Electron Cooler (LEReC) will be operating with the electron beams having up to 140 kW power. It was determined that the missteered electron beam can damage the vacuum chamber and in-vacuum components within 20 us. We protect our accelerator against such a catastrophic scenario by a dedicated machine protection system (MPS). In this paper we describe the current status of the LEReC MPS work. We consider our experience with the commissioning and operation of the scaled down MPS system used for the LEReC gun test beamline and discuss the work on the MPS designed for the commissioning of the full LEReC accelerator.

Slides TH1AB4 [2.906 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2017-TH1AB4

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)