Progress in reducing the back-bombardment effect in the itc-RF gun for t-acts project at Tohoku university

X. Li, S. Kashiwagi, M. Kawai, F. Hinode, K. Nanbu, T. Muto, F. Miyahara, Y. Tanaka, H. Hama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

An ITC (independently tunable cells) thermionic RF gun has been developed as the electron source for coherent terahertz radiations at Tohoku University. Both experiments and simulations have shown that the back-bombardment (B.B.) effect on the LaB6 cathode is a serious issue for stable operation. A numerical model has been developed to evaluate the increase of the cathode temperature due to B.B. in which the 2D equation for heat conduction is solved by taking the back-streaming electrons into account. Using this model we have studied the possibility of suppressing the B.B. by imposing external dipole field and by optimization of the cathode size, compared with experimental data. The results will be reported here.

Original languageEnglish
Title of host publicationIPAC 2012 - International Particle Accelerator Conference 2012
Pages643-645
Number of pages3
Publication statusPublished - 2012
Event3rd International Particle Accelerator Conference 2012, IPAC 2012 - New Orleans, LA, United States
Duration: 2012 May 202012 May 25

Publication series

NameIPAC 2012 - International Particle Accelerator Conference 2012

Other

Other3rd International Particle Accelerator Conference 2012, IPAC 2012
Country/TerritoryUnited States
CityNew Orleans, LA
Period12/5/2012/5/25

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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