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MOI1B01 | High Intensity Issues at FAIR | ion, emittance, heavy-ion, synchrotron | 11 |
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Funding: Supported by the BMBF and Helmholtz International Center for FAIR The facility for antiproton and ion research - FAIR - will produce secondary beams of unprecedented intensities [1]. In order to produce such intense secondary beams and to provide intense beams for the CBM [2] and APPA [3] collaboration, primary heavy ion beams of highest intensities will be required. The main driver accelerator of FAIR will be the SIS100 synchrotron. The GSI heavy ion accelerator facility will be the injector of ion beams for SIS100. In order to reach the final intensities above 1011 ions per cycle, the injector chain has to be modified accordingly and the SIS100 has to be tailored to the needs. Therefore an intensity upgrade program of the GSI accelerator facility has been started, which comprises improvements of ion sources, of the injector linacs and of the heavy ion synchrotron SIS18. In addition, high energy beam transport and the SIS100 need to have a dedicated design, in order to handle beam losses. The issues of the upgrade programme and of the SIS100 design will be addressed. [1] FAIR Green Paper- The Modularized Start Version, Oct.2009 [2] B.Friman et al.,The CBM physics Book, Series: Lecture Notes in Physics, Vol.814,2011 [3] http://www.fair-center.de/de/oeffentlichkeit/experimenteprogramm/appa-physics.html |
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Slides MOI1B01 [15.662 MB] | ||
TUO1C06 | Instrumentation Developments and Beam Studies for the Fermilab Proton Improvement Plan Linac Upgrade and New RFQ Front-End | rfq, linac, proton, instrumentation | 315 |
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Funding: This work was supported by the U.S. Department of Energy under contract No. DE-AC02-07CH11359. Fermilab is developing a Proton Improvement Plan (PIP) to increase throughput of it's the proton source. The plan addresses hardware modifications to increase repetition rate and improve beam loss while ensuring viable operation of the proton source through 2025. The first phase of the PIP will enable the Fermilab proton source to deliver 1.8·1017 protons per hour by mid-2013. As part of this initial upgrade, Fermilab plans to install a new front-end consisting of dual H− ion sources and a 201 MHz pulsed RFQ. This talk will present beam studies measurements of this new front-end as well as present new beam instrumentation upgrades for the Fermilab linac. |
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Slides TUO1C06 [2.546 MB] | ||
THO3B04 | Beam Dynamics Studies of H− Beam Chopping in a LEBT for Project X | ion, emittance, solenoid, simulation | 546 |
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Funding: This work is supported by the Office of Science, United States Department of Energy under DOE contract DE-AC02-05CH11231. Project X is proposed as a high intensity proton facility at Fermilab to support a world-leading program in neutrino and flavor physics over the next several decades. The front-end consists of an H− ion source, low-energy beam transport (LEBT), and 162.5 MHz CW Radio-Frequency-Quadrupole (RFQ) accelerator. The LEBT design, currently under study at LBNL, would comprise two solenoids, a dipole magnet and a chopper. The LEBT chopper is designed to achieve 1 MHz beam chopping of a partially neutralized 30 keV, 5 mA H− beam. Preliminary simulation studies show that chopping the beam before the second solenoid is more efficient in terms of chopper bias voltages. However, the space charge neutralization will be lost along the beam after the chopper and through the second solenoid. A beam dynamics study, using WARP 3D (a Particle-in-cell simulation code), has been carried out to investigate both the time-dependence of the partial neutralization in the segment after the chopper, as well as the beam stability and emittance growth. Benchmark experiments are ongoing and simulation and experimental results will be presented in this Workshop. |
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Slides THO3B04 [1.868 MB] | ||
THO3B05 | Intense High Charge State Heavy Ion Beam Production for the Advanced Accelerators | ion, electron, ECRIS, plasma | 550 |
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Modern advanced heavy ion beam accelerators have strong needs for either dc or pulsed intense high charge state heavy ion beams, such as dc beams for FRIB project, SPIRAL2 project, HIRFL/IMP facility, RIBF/RIKEN facility ect, and pulsed beams for RHIC, LHC, FAIR project. After decades' development, only several typical ion sources have found their applications in these accelerators, i.e. ECR ion source, EBIS and LIS or Laser Ion Source. This paper will give a general review of the advantages and limitations of the three types of ion sources. The latest development and performance for the three types of ion sources will be presented. | |||
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Slides THO3B05 [2.464 MB] | ||