caa a22 4500 39757004X CHVBK 20180308164838.0 cr unu---uuuuu 161202e199612 xx s 000 0 eng 10.1093/oxfordjournals.jmicro.a023478 doi (NATIONALLICENCE)oxford-10.1093/oxfordjournals.jmicro.a023478 A Comparison of Thermionic Emission Current Density and Brightness against Evaporation Loss for LaB6 and Tungsten [Elektronische Daten] [Ryo Iiyoshi, Hiroshi Shimoyama, Susumu Maruse] The thermionic emission properties of LaB6 and tungsten cathodes are compared by plotting the current densities and brightnesses against the thickness evaporation rates (μm/h) of these cathode materials. The rates are used since the working lives of the cathodes are directly related to the dimensional losses of the cathodes. The comparison shows that differences in the emission properties are not as large as when compared using the mass evaporation rates. The lives of the cathodes are discussed using the plots. © 1996 Oxford University Press Notes nationallicence thermionic electron source nationallicence LaB6 cathode nationallicence tungsten cathode nationallicence cathode life nationallicence evaporation rate nationallicence Iiyoshi Ryo Department of Electronics, Aichi Institute of Technology Yugusa, Toyota, 470-02 Japan aut Shimoyama Hiroshi Department of Electrical and Electronic Engineering. Faculty of Science and Technology, Meijo University Tenpaku-ku, Nagoya, 468 Japan aut Maruse Susumu Meijo University Tenpaku-ku, Nagoya, 468 Japan aut Microscopy Oxford University Press 45/6(1996-12), 514-517 0022-0744 45:6<514 1996 45 jmicro https://doi.org/10.1093/oxfordjournals.jmicro.a023478 text/html Onlinezugriff via DOI 1 other jats NATIONALLICENCE 856 40 https://doi.org/10.1093/oxfordjournals.jmicro.a023478 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Iiyoshi Ryo Department of Electronics, Aichi Institute of Technology Yugusa, Toyota, 470-02 Japan aut NATIONALLICENCE 700 1- Shimoyama Hiroshi Department of Electrical and Electronic Engineering. Faculty of Science and Technology, Meijo University Tenpaku-ku, Nagoya, 468 Japan aut NATIONALLICENCE 700 1- Maruse Susumu Meijo University Tenpaku-ku, Nagoya, 468 Japan aut NATIONALLICENCE 773 0- Microscopy Oxford University Press 45/6(1996-12), 514-517 0022-0744 45:6<514 1996 45 jmicro Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford