Development of the barium shaped charge technique in Japan

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概要

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• Generation of an artificial barium luminescent cloud is a useful technique to investigate configurations of magnetic field lines or electric fields in the upper atmosphere. To make such a plasma cloud of several thousands of kilometers long along a magnetic field line, it is necessary to initiate a well-collimated barium jet with an initial velocity of 8-12km/s by using a shaped charge. This report explains a series of developments of the barium shaped charge techniques, such as molding of barium liners, prohibition of rust on the metallic barium, production of a plane detonation wave and a ground test of a barium ion jet.

著者

• Nakamura Junji

  Institute Of Physics College Of General Education University Of Tokyo

• Nakamura Junji

  Institute Of Materials Science Graduate School Of Pure And Applied Science University Of Tsukuba

• NAKAMURA Junji

  Institute of Biological Sciences, University of Tsukuba

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