Keyword: ion-source
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MOC04 Commissioning Experience with CARIBU ion, background, plasma, ECR 45
  • R.C. Vondrasek, S.I. Baker, P. Bertone, S. Caldwell, J.A. Clark, C.N. Davids, D. Lascar, A. Levand, K. Lister, R.C. Pardo, D. Peterson, D.R. Phillips, G. Savard, J.V. Schelt, M.G. Sternberg, T. Sun, B. Zabransky
    ANL, Argonne, USA
  The Californium Rare Ion Breeder Upgrade (CARIBU) of the ATLAS superconducting linac facility aims at providing low-energy and reaccelerated neutron-rich radioactive beams to address key nuclear physics and astrophysics questions. These beams are obtained from fission fragments of a Cf-252 source, thermalized and collected into a low-energy particle beam by a helium gas catcher, mass analyzed by an isobar separator, and charge bred with an ECR ion source to higher charge states for acceleration in ATLAS. Low-energy mass separated radioactive beams have been extracted, charge bred with a 10% efficiency, reaccelerated to 6 MeV/u, and delivered to GAMMASPHERE for beta decay studies. In addition, the Canadian Penning Trap (CPT) mass spectrometer has been relocated to the CARIBU low-energy beam line. Mass measurements on over 42 neutron rich nuclei have already been performed and additional measurements are underway. In addition, a new tape station for beta decay studies has just been commissioned. In this talk I will describe the current status of the overall CARIBU system and the plans for bringing the system into full operation and use in research with accelerated beams.  
slides icon Slides MOC04 [3.744 MB]  
PO02 GANIL Operation Status and Upgrade of SPIRAL1 ion, booster, target, acceleration 51
  • F. Chautard, O. Bajeat, P. Delahaye, M. Dubois, P. Jardin, O. Kamalou, L. Maunoury, G. Sénécal
    GANIL, Caen, France
  The GANIL facility (Caen, France) is dedicated to the acceleration of heavy ion beams for nuclear physics, atomic physics, radiobiology and material irradiation. The production of stable and radioactive ion beams for nuclear physics studies represents the main part of the activity. The exotic beams are produced by the Isotope Separation On-Line method (ISOL, the SPIRAL1 facility) with SPIRAL1 facility. It is running since 2001, producing and post-accelerating radioactive ion beams. The review of the operation from 2001 to 2011 is presented. Because of the physicist demands, the facility is about to be improved with the project Upgrade SPIRAL1. The goal of the project is to extend the range of post-accelerated exotic beams avalaible.  
PO12 Damage Situation of the 12UD Pelletron Tandem Accelerator at the University of Tsukuba by the Great East Japan Earthquake tandem-accelerator, ion, FEL, high-voltage 80
  • K. Sasa
    UTTAC, Tsukuba, Ibaraki, Japan
  The 12UD Pelletron tandem accelerator at the University of Tsukuba suffered serious damage from the Great East Japan Earthquake on 11 March 2011. On the day, the 12UD Pelletron tandem accelerator was in operation at 8 MV. A main tank of the 12 UD Pelletron tandem accelerator located from downstairs 4th floor to 7th floor was strongly shaken by the shock of the earthquake. All high voltage accelerating columns fell down in the accelerator tank. The situation of damage and a post-quake reconstruction project of the Tandem Accelerator Facility at the University of Tsukuba will be reported.  
TUA01 Heavy Ion Accelerator Development at IUAC Delhi ion, heavy-ion, linac, niobium 105
  • D. Kanjilal
    IUAC, New Delhi, India
  Inter University Accelerator Centre has been involved in the development of heavy ion accelerators, ion sources, beam lines and experimental facilities for providing various heavy ion beams in a wide energy range varying from a few tens of keV to hundreds of MeV for experiments by more than four hundred research groups from all over India and abroad. A large vertical Pelletron electrostatic tandem accelerator capable of achieving terminal voltage up to 16MV has been in operational for more than a couple of decades. Superconducting niobium linac booster accelerating modules having eight niobium quarter wave resonators each have been developed and used. A high temperature superconducting electron cyclotron resonance ion source (HTS-ECRIS) was designed, fabricated and installed. It is in regular operation for production of highly charged ion beams for alternate high current injector (HCI) system consisting of radio frequency quadrupole and drift tube Linacs. Details of developments of various heavy ion beam facilities and experimental systems at IUAC will be presented.  
slides icon Slides TUA01 [5.689 MB]  
TUA02 A Cost-Effective Energy Upgrade of the ALPI Linac at INFN-Legnaro linac, ion, simulation, cavity 106
  • G. Bisoffi, M. Comunian, A. Facco, A. Galatà, P. Modanese, R. Pengo, A. Pisent, A.M. Porcellato, S. Stark
    INFN/LNL, Legnaro (PD), Italy
  • B.B. Chalykh
    ITEP, Moscow, Russia
  The ALPI SC linac at INFN-LNL is being constantly upgraded in terms of maximum beam energy (Ef) and current, made available for experiments. Presently, a liquid-N cooling scheme is being applied to the RF power couplers of the 16 full Nb resonators, to keep them locked at 5 MV/m, vs. present 3 MV/m. A further upgrade of the 44 “medium beta section” cavities, changing the cavity Cu substrates, was prototyped and is reported at this conference: however it is not fully funded yet and is extremely time-consuming. A cost-effective Ef upgrade is proposed here: to move 2 SC buncher cryostats, which house a single working SC QWR but were designed for 4, at the end of ALPI, equipping them with 4 Nb/Cu QWRs each (new bunchers would either be NC QWRs or a single SC cavity cryostat). The contribution of these cryostats to Ef would be extremely effective: e.g. a Ef~10 MeV/A (Ibeam≥ 1 pnA) Pb beam, a very attractive tool for the Nuclear Physics community, is achievable. A being performed upgrade of ALPI cryoplant, expected to increase the refrigeration capability by ~25%, makes this change possible today. Details of this solutions, as well as its limits, will be presented and discussed  
slides icon Slides TUA02 [3.722 MB]  
TUB02 New Developments at the Tandem Accelerators Laboratory at IFIN-HH ion, tandem-accelerator, controls, vacuum 118
  • D.G. Ghita, I.C. Calinescu, S. Dobrescu, N.M. Marginean, I.O. Mitu, T.B. Sava, B. Savu
    IFIN, Magurele- Bucuresti, Romania
  • Gh. Cata-Danil, M.S. Dogaru, M. Enachescu, M.M. Gugiu, P. Ionescu, D.V. Mosu, A. Pantelica, D. Pantelica, A. Petre, I. Popescu, C.A. Simion, C. Stan-Sion, M. Statescu, N.V. Zamfir
    Horia Hulubei National Institute for Physics and Nuclear Engineering, Bucharest, Romania
  The upgrade of the 9 MV Tandem accelerator at IFIN-HH started in 2007. Remarkable improvements were done in the last 5 years that can be seen in the improved performance and reliability of the machine. Using original preparation techniques, some new beam species were tested for the first time in our laboratory. This opened the door to new experiments. A major improvement for the laboratory is the installation of 1 MV Tandetron accelerator dedicated to ultra-sensitive AMS measurements of C-14, Be-10, Al-26 and I-129, and 3 MV Tandetron accelerator dedicated to ion beam analysis. The main directions of the research activity in the laboratory will be shortly presented.  
slides icon Slides TUB02 [3.686 MB]  
WEB01 Electron Beam Ion Sources, Traps, and Strings: Versatile Devices to Meet the High Charge State Ion Needs of Modern Facilities ion, electron, heavy-ion, collider 164
  • E.N. Beebe, J.G. Alessi, A.I. Pikin
    BNL, Upton, Long Island, New York, USA
  Funding: Work supported by Brookhaven Science Associates, LLC under Contract No. DE-AC02-98CH10886 with the U.S. Department of Energy, and by the National Aeronautics and Space Administration
Electron beam ion sources (EBIS) and its variants such as the electron beam ion trap (EBIT) and electron string ion source (ESIS) have been selected to provide highly charged ions for several atomic and nuclear physics facilities. Since the capture and breeding can be short and highly efficient, EBIST devices are increasingly being chosen for trapping and/or reacceleration of radioactive beams. The sources can range from petite to grand, using electron beams from ~1mA to 10A or more. They often serve accelerators and beam lines in large laboratories but they can be self contained laboratories where experiments are made in situ. We will discuss the basic principles as well as applications of these sources at various facilities around the world. Some emphasis will be placed on the recently commissioned RHIC EBIS source which is now providing beams for both high energy physics at the relativistic heavy ion collider as well as the NASA space radiation laboratory at BNL.
slides icon Slides WEB01 [2.850 MB]  
WEB03 DREEBIT EBIS/T for Applications in Accelerator Physics ion, electron, target, injection 170
  • M. Schmidt, A. Thorn
    DREEBIT GmbH, Dresden, Germany
  • G. Zschornack
    Technische Universität Dresden, Institut für Angewandte Physik, Dresden, Germany
  Funding: Supported by the European Regional Development Fund (ERDF) and the German Federal Ministry of Economics and Technology
Electron Beam Ion Sources and Traps provide light up to heavy ions of low up to high charge states for various applications in accelerator physics such as medical particle therapy and charge breeding. Beside the well-known but quiet costly superconducting EBIS/T type systems compact and permanent magnet-operated EBIS/T from the DREEBIT Company are available, favorable for low-budget projects. Moreover, the "flagship" of the DREEBIT ion source family, the superconducting EBIS-SC features operating parameters comparable to the complex and expensive systems in the EBIS/T community.
slides icon Slides WEB03 [3.655 MB]  
poster icon Poster WEB03 [7.892 MB]  
WEB04 Electron and Ion Beam Dynamics in the CARIBU EBIS Charge Breeder ion, electron, simulation, acceleration 172
  • C. Dickerson, S.A. Kondrashev, B. Mustapha, P.N. Ostroumov
    ANL, Argonne, USA
  • A.I. Pikin
    BNL, Upton, Long Island, New York, USA
  Funding: This work is supported by the U.S. Department of Energy, Office of Nuclear Physics, under contract number DE-AC02-06CH11357.
An Electron Beam Ion Source (EBIS) is being built to charge breed ion beams from the Californium Rare Isotope Breeder Upgrade (CARIBU) for acceleration in the Argonne Tandem Linear Accelerator System (ATLAS) at Argonne National Laboratory (ANL). The overall efficiency of the source and charge breeder system is important since CARIBU will produce many low intensity radioactive ion species. Simulations of the electron and ion beam dynamics have been used to determine the system’s expected performance. The details of these simulations and results will be presented.
slides icon Slides WEB04 [1.362 MB]  
WEB05 ECRIS Latest Developments ion, electron, ECRIS, plasma 173
  • L. Celona, G. Castro, S. Gammino, D. Mascali
    INFN/LNS, Catania, Italy
  • G. Ciavola
    CNAO Foundation, Milan, Italy
  The production of intense beams of highly charged ions (HCI) is one of the most relevant challenge for the future accelerator facilities. Electron Cyclotron Resonance Ion Sources (ECRIS) are nowadays the most powerful devices able to feed accelerators with HCI in a reliable and efficient way. The reliability of frontier solutions for magnets and the increased costs for microwave generators make scaling to larger frequency not viable. Any further improvement of ECRIS output currents and average charge state requires a deep understanding of electron and ion dynamics in the plasma. In the past 20 years different teams have been working in the forefront of ion source developments with both experimental and theoretical activities, proposing different solutions to improve the production rate. The paper will discuss the most recent technological developments in the field, worldwide, together with the modeling issues of non-classical evidences like sensitivity of Electron Energy Distribution Function to the magnetic field detuning, influence of plasma turbulences on electron heating and ion confinement, coupling between electron and ion dynamics and relative impact on the formed ion beam.