Electron gun using coniferous carbon nano-structure

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

doi:10.56646/jjapcp.2.0_011302

2nd Japan-China Joint Workshop on Positron Science (JWPS2013)

Session ID : 011302

DOI https://doi.org/10.56646/jjapcp.2.0_011302

Conference information

Host: The organizing committee of JWPS2013

Name : 2nd Japan-China Joint Workshop on Positron Science (JWPS2013)

Location : Tsukuba, Japan

Date : December 20, 2013 - December 23, 2013

Advances in analytical techniques and instrumentation

Electron gun using coniferous carbon nano-structure

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

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CONFERENCE PROCEEDINGS OPEN ACCESS

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Abstract

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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