Self-pinched transport of an intense proton beam
作者： P. F. Ottinger , F. C. Young , S. J. Stephanakis , D. V. Rose , J. M. Neri
DOI: 10.1063/1.873803
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摘要: Ion beam self-pinched transport (SPT) experiments have been carried out using a 1.1-MeV, 100-kA proton beam. A Rutherford scattering diagnostic and LiF nuclear activation measured the number of protons within 5 cm radius at 50 into region that was filled with low-pressure helium. Time-integrated signals from both diagnostics indicate self-pinching ion in helium pressure window between 35 80 mTorr. Signals these two are consistent ballistic pressures above below this SPT window. Interferometric measurements electron densities during injection vacuum co-moving electrons. for show density increases quadratically through roughly linearly The ionization fraction plateaus about 1.5% abov...
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