Negative Ion Beams and Plasmas. A New Machine for Materials Synthesis Using Positive and Negative Ion Deposition.
نویسندگان
چکیده
منابع مشابه
POSITIVE AND NEGATIVE ION MASS SPECTRA OF RING - SUBSTITUTED NITROBENZENES
The 70 ev positive and negative ion mass spectra of ring-substituted nitrobenzenes were studied. The influence of the substituent group on the fragmentation modes of the molecular ions is discussed. The effect of pressure in the formation of negative ions was also studied. As expected, the ratio of fragment ions to negative molecular ions decreased with increasing pressure in ion source.
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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...
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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...
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Blocking: Reduction of detector signal rate when aligned with a crystal axis or plane. Channeling: Guided trajectory of incident ions between crystal axes or planes. Collision cascade: Series of atom-atom collisions initiated by an ion-atom collision. Cross section: Effective area presented by each atom or nucleus for a specific type of interaction with an incoming ion. lmplantation: Addition o...
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ژورنال
عنوان ژورنال: SHINKU
سال: 1995
ISSN: 0559-8516,1880-9413
DOI: 10.3131/jvsj.38.929