منابع مشابه
Review of Negative Hydrogen Ion Sources High Brightness/high Current
Due to the development of reliable H ion sources, charge-exchange injection into circular accelerators has become routine. This paper reviews recent developments in negative hydrogen ion sources. The underlying physics, operating parameters and beam characteristics of selected sources will be described and compared. Figure 1: History of duoplasmatron and surface source development.
متن کاملCollisional Cooling of Negative Ion Beams
Managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725. Abstract Investigations have been conducted to determine the feasibility of using collisional cooling for reducing the energy spreads and, consequently, the emittances of negative-ion beams. We have designed a gas-filled RFquadrupole ion cooler equipped with provisions for retarding energetic nega...
متن کاملCollimation of High Intensity Ion Beams*
Intense ion beams with small phase space occupation (high brilliance) are mandatory to keep beam losses low in high current injector accelerators like those planned for the Facility for Antiproton and Ion Research (FAIR). The low energy beam transport from the ion source towards the linac has to keep the emittance growth low and has to support the optimization of the ion source tune. The Frankf...
متن کاملNegative Ion Based Heating and Diagnostic Neutral Beams for ITER
To meet the requirements of the four operating and one start-up scenarios foreseen in the International Tokamak Experimental Reactor (ITER) a flexible heating mix will be required, which has to include a reliable contribution from neutral beams. The current baseline of ITER foresees 2 Heating Neutral Beam (HNB) systems based on negative ion technology, each operating at 1 MeV 40 A D ions, and e...
متن کاملHalo Formation and Emittance Growth during Bunch Compression of High-current Heavy Ion Beams
A generation of halo particles and an emittance growth are investigated numerically for a highcurrent beam transport during a longitudinal bunch compression. The halo particles are generated during the drift compression with an alternating gradient confinement lattice in the transverse direction. The emittance growth is caused by the halo particle generation, and depends on the drift length for...
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ژورنال
عنوان ژورنال: IEEE Transactions on Nuclear Science
سال: 1977
ISSN: 0018-9499,1558-1578
DOI: 10.1109/tns.1977.4328997