1.
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Measurements and simulations of electron-cloud-induced tune shifts and emittance growth at CesrTA
/ Poprocki, S (Cornell U., CLASSE) ; Crittenden, J A (Cornell U., CLASSE) ; Rubin, D L (Cornell U., CLASSE) ; Wang, S T (Cornell U., CLASSE)
Extensive measurements of electron-cloud-induced be-tatron tune shifts and emittance growth are presented fortrains of positron and electron bunches at 2.1 and 5.3 GeV atvarious bunch populations. Measurements using a witnessbunch with variable distance from the end of the train andvariable bunch population inform the study of cloud decayand the pinch eect. [...]
2020 - 12 p.
Fulltext from publisher: PDF;
In : ECLOUD’18: Proceedings of the Joint INFN-CERN-ARIES Workshop on Electron-Cloud Effects, La Biodola, Isola d'Elba, Italy, 3 - 7 Jun 2018, pp.27-38 (CERN-2020-007)
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2.
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CesrTA Retarding Field Analyzer Measurements in Drifts, Dipoles, Quadrupoles and Wigglers
/ Calvey, J R (Cornell U., CLASSE) ; Li, Y (Cornell U., CLASSE) ; Livezey, J A (Cornell U., CLASSE) ; Makita, J (Cornell U., CLASSE) ; Meller, R E (Cornell U., CLASSE) ; Palmer, M A (Cornell U., CLASSE) ; Schwartz, R M (Cornell U., CLASSE) ; Strohman, C R (Cornell U., CLASSE) ; Harkay, K (ALCF, Argonne) ; Calatroni, S (CERN) et al.
Over the course of the CesrTA program, the Cornell Electron Storage Ring (CESR) has been instrumented with several retarding field analyzers (RFAs), which measure the local density and energy distribution of the electron cloud. These RFAs have been installed in drifts, dipoles, quadrupoles, and wigglers; and data have been taken in a variety of beam conditions and bunch configurations [...]
2010
External link: Published version from JACoW
In : 1st International Particle Accelerator Conference, Kyoto, Japan, 23 - 28 May 2010, pp.TUPD023
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3.
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Simulations of synchrotron-radiation-induced electron production in the CESR vacuum chamber wall
/ Crittenden, J A (Cornell U., CLASSE) ; Poprocki, S (Cornell U., CLASSE) ; Rubin, D L (Cornell U., CLASSE) ; Sagan, D (Cornell U., CLASSE)
We report on calculations of electron production by synchrotron radiation absorbed in the vacuum chamber walls of the Cornell Electron Storage Ring (CESR). These photo-electrons are the source of electron clouds which limit the performance of storage rings by causing betatron tune shifts, instabilities and emittance growth. [...]
2020 - 12 p.
Fulltext from publisher: PDF;
In : ECLOUD’18: Proceedings of the Joint INFN-CERN-ARIES Workshop on Electron-Cloud Effects, La Biodola, Isola d'Elba, Italy, 3 - 7 Jun 2018, pp.183-194 (CERN-2020-007)
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4.
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Electron Cloud at Low Emittance in CesrTA
/ Palmer, Mark (Cornell U., CLASSE) ; Alexander, James (Cornell U., CLASSE) ; Billing, Michael (Cornell U., CLASSE) ; Calvey, Joseph (Cornell U., CLASSE) ; Conolly, Christopher (Cornell U., CLASSE) ; Crittenden, James (Cornell U., CLASSE) ; Dobbins, John (Cornell U., CLASSE) ; Dugan, Gerald (Cornell U., CLASSE) ; Eggert, Nicholas (Cornell U., CLASSE) ; Fontes, Ernest (Cornell U., CLASSE) et al.
The Cornell Electron Storage Ring (CESR) has been reconfigured as a test accelerator (CesrTA) for a program of electron cloud (EC) research at ultra low emittance. The instrumentation in the ring has been upgraded with local diagnostics for measurement of cloud density and with improved beam diagnostics for the characterization of both the low emittance performance and the beam dynamics of high intensity bunch trains interacting with the cloud [...]
2010
External link: Published version from JACoW
In : 1st International Particle Accelerator Conference, Kyoto, Japan, 23 - 28 May 2010, pp.TUYMH02
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5.
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Intrabeam Scattering Studies at CesrTA
/ (Fermilab ; Cornell U., CLASSE) ; (Fermilab ; Cornell U., CLASSE) ; (Fermilab ; Cornell U., CLASSE) ; Peterson, DP (Cornell U., CLASSE) ; Rider, NT (Cornell U., CLASSE) ; Rubin, DL (Cornell U., CLASSE) ; Holtzapple, R (Cal. Poly.) ; Campbell, R (Cal. Poly.) ; Shanks, JP (Cornell U., CLASSE) ; Strohman, CR (Cornell U., CLASSE) et al.
Intrabeam scattering (IBS) dilutes the emittance of low energy, low emittance rings. Because CesrTA can be operated at low energies with low transverse emittances and high bunch intensity, it is well-suited for the study of IBS. [...]
2012 - 3 p.
- Published in : Conf. Proc.: C1205201 (2012) , pp. WEPPR015
External link: Published from JaCoW
In : 3rd International Particle Accelerator Conference, New Orleans, LA, USA, 20 - 25 May 2012, pp.2970-2972
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6.
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Electron Cloud Modeling Results for Time-resolved Shielded Pickup Measurements at CesrTA
/ Crittenden, J A (Cornell U., CLASSE) ; Li, Y (Cornell U., CLASSE) ; Liu, X (Cornell U., CLASSE) ; Palmer, M A (Cornell U., CLASSE) ; Sikora, J P (Cornell U., CLASSE) ; Calatroni, S (CERN) ; Rumolo, G (CERN)
The Cornell Electron Storage Ring Test Accelerator (CesrTA) program includes investigations into electron cloud buildup, applying various mitigation techniques in custom vacuum chambers. Among these are two 1.1 meter long sections located symmetrically in the east and west arc regions. [...]
2011
External link: Published version from JACoW
In : 2011 Particle Accelerator Conference, New York City, NY, USA, 28 Mar - 1 Apr 2011, pp.WEP142
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7.
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Observations and predictions at CesrTA, and outlook for ILC
/ Dugan, G. (Cornell U., CLASSE) ; Billing, M. (Cornell U., CLASSE) ; Butler, K. (Cornell U., CLASSE) ; Chu, J. (Cornell U., CLASSE) ; Crittenden, J. (Cornell U., CLASSE) ; Forster, M. (Cornell U., CLASSE) ; Kreinick, D. (Cornell U., CLASSE) ; Meller, R. (Cornell U., CLASSE) ; Palmer, M. (Cornell U., CLASSE) ; Ramirez, G. (Cornell U., CLASSE) et al.
In this paper, we will describe some of the recent experimental measurements [1, 2, 3] performed at CESRTA [4], and the supporting simulations, which probe the interaction of the electron cloud with the stored beam. These experiments have been done over a wide range of beam energies, emittances, bunch currents, and fill patterns, to gather sufficient information to be able to fully characterize the beam-electron-cloud interaction and validate the simulation programs. [...]
arXiv:1310.0261.-
Geneva : CERN, 2013 - 11 p.
Fulltext: PDF; Published version from CERN: PDF; External link: Preprint
In : ECLOUD’12: Joint INFN-CERN-EuCARD-AccNet Workshop on Electron-Cloud Effects, pp.31-41
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8.
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Time-resolved Shielded-Pickup Measurements and Modeling of Beam Conditioning Effects on Electron Cloud Buildup at CesrTA
/ Crittenden, J A (Cornell U., CLASSE) ; Li, Y (Cornell U., CLASSE) ; Liu, X (Cornell U., CLASSE) ; Palmer, M A (Cornell U., CLASSE) ; Santos, S (Cornell U., CLASSE) ; Sikora, J P (Cornell U., CLASSE) ; Kato, S (KEK, Tsukuba) ; Calatroni, S (CERN) ; Rumolo, G (CERN)
The Cornell Electron Storage Ring Test Accelerator program includes investigations into electron cloud buildup in vacuum chambers with various coatings. Two 1.1-mlong sections located symmetrically in the east and west arc regions are equipped with BPM-like pickup detectors shielded against the direct beam-induced signal. [...]
2012 - 3 p.
- Published in : Conf. Proc.: C1205201 (2012) , pp. TUPPR064
External link: Published from JaCoW
In : 3rd International Particle Accelerator Conference, New Orleans, LA, USA, 20 - 25 May 2012, pp.1966-1968
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9.
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10.
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Emittance Growth, Tune Shift, and the Bunched-Beam, Bunched-Beam Interaction
/ Rhoades-Brown, M J ; Tepikian, S
1989
External link: Published version from JACoW
In : 13th IEEE Particle Accelerator Conference, Chicago, IL, USA, 20 - 23 Mar 1989, pp.929
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