منابع مشابه
Impurity Breakdown in GaAs Samples Grown by Molecular Beam Epitaxy
In this work we present studies for the behavior of impurity breakdown of two GaAs samples grown by Molecular Beam Epitaxy at 200oC and 300oC. We vary the temperature and the illumination intensity. For the sample grown at 200oC, the transport mechanism after the breakdown is of the same type of the main free carriers at low electric elds. Below 100K, a clear dependence of the threshold electri...
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XeF( C --* A ) laser radiation has been produced in a fivecomponent gas mixture excited by a coaxial electron beam with an intermediate pulse length ( 175 ns) and pumping rate ( 1 MW/cm'). The laser output energy was 215 mJ from an active volume of 157 cm3 (1.4 J / L ) at a total gas pressure of 8 bar corresponding to an intrinsic
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The system for the single-turn injection of 5 MeV/u heavy ions into the Nuclotron is described. The system comprises a superconducting septum-magnet, kick electric plates, beam diagnostic apparatus and magnet correctors. The septum magnet has an iron yoke. The coil and septum made of a hollow superconductor, are cooled with a two-phase helium flow. The magnetic field is 1T. The electric field a...
متن کاملInjection Beam Dynamics in Spear3
1 SLAC National Accelerator Laboratory, Menlo Park, CA 94025 2 Brookhaven National Laboratory, Upton, NY 11973 3 Life Imaging Technology, Palo Alto, CA 94301 Abstract For the top-off operation it is important to understand the time evolution of charge injected into the storage ring. The large-amplitude horizontal oscillation quickly filaments and decoheres, and in some cases exhibits nonlinear...
متن کاملLaboratory measurements of electrostatic solitary structures generated by beam injection.
Electrostatic solitary structures are generated by injection of a suprathermal electron beam parallel to the magnetic field in a laboratory plasma. Electric microprobes with tips smaller than the Debye length (λDe) enabled the measurement of positive potential pulses with half-widths 4 to 25λDe and velocities 1 to 3 times the background electron thermal speed. Nonlinear wave packets of similar ...
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ژورنال
عنوان ژورنال: Kakuyūgō kenkyū
سال: 1974
ISSN: 0451-2375,1884-9571
DOI: 10.1585/jspf1958.32.1