JJAP Conference Proceedings

JJAP Conf. Proc. 2, 011302 (2014) doi:10.7567/JJAPCP.2.011302

Electron gun using coniferous carbon nano-structure

Hidetoshi Kato, Brian E. O’Rourke, Ryoichi Suzuki

  1. National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan
  • Received May 31, 2014
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We have measured the emission stability of a coniferous carbon nano-structure (CCNS) field emission electron source. Stable emission over the 1274 h measurement was observed at an emission current density of 20 mA·cm−2. The CCNS emitter can generate an emission current of more than 10 mA making it a practical choice for many applications requiring high electron current. For example, we are currently developing a CCNS based electron gun for electron accelerators and a portable X-ray source. Recent progress on both these applications is presented.

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