DAΦNE Operation with Electron-Cloud-Clearing Electrodes
| العنوان: | DAΦNE Operation with Electron-Cloud-Clearing Electrodes |
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| المؤلفون: | A. Stella, S. De Santis, Alessandro Gallo, Mikhail Zobov, D. Alesini, A. Drago, T. Demma, C. Milardi, Susanna Guiducci, Pantaleo Raimondi |
| المساهمون: | Laboratori Nazionali di Frascati (LNF), Istituto Nazionale di Fisica Nucleare (INFN), Lawrence Berkeley National Laboratory [Berkeley] (LBNL), Dept. Accelerateurs, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), European Synchrotron Radiation Facility (ESRF) |
| المصدر: | Physical Review Letters Physical Review Letters, American Physical Society, 2013, 110, pp.124801. ⟨10.1103/PhysRevLett.110.124801⟩ |
| بيانات النشر: | HAL CCSD, 2013. |
| سنة النشر: | 2013 |
| مصطلحات موضوعية: | Physics, Proton, 010308 nuclear & particles physics, business.industry, Physics::Instrumentation and Detectors, Wiggler, [PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph], General Physics and Astronomy, 01 natural sciences, law.invention, Dipole, Optics, Positron, law, Magnet, 0103 physical sciences, Physics::Accelerator Physics, Laser beam quality, Atomic physics, 010306 general physics, Collider, business, Beam (structure) |
| الوصف: | The effects of an electron cloud ($e$-cloud) on beam dynamics are one of the major factors limiting performances of high intensity positron, proton, and ion storage rings. In the electron-positron collider DA\ensuremath{\Phi}NE, namely, a horizontal beam instability due to the electron-cloud effect has been identified as one of the main limitations on the maximum stored positron beam current and as a source of beam quality deterioration. During the last machine shutdown in order to mitigate such instability, special electrodes have been inserted in all dipole and wiggler magnets of the positron ring. It has been the first installation all over the world of this type since long metallic electrodes have been installed in all arcs of the collider positron ring and are currently used during the machine operation in collision. This has allowed a number of unprecedented measurements ($e$-cloud instabilities growth rate, transverse beam size variation, tune shifts along the bunch train) where the $e$-cloud contribution is clearly evidenced by turning the electrodes on and off. In this Letter we briefly describe a novel design of the electrodes, while the main focus is on experimental measurements. Here we report all results that clearly indicate the effectiveness of the electrodes for $e$-cloud suppression. |
| اللغة: | English |
| تدمد: | 0031-9007 1079-7114 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db79a9d20fcc2b310c61550bc229bddc http://hal.in2p3.fr/in2p3-00822819 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....db79a9d20fcc2b310c61550bc229bddc |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 00319007 10797114 |
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