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Thermal Deformation Analysis and Electron Beam Optics Simulation for a Thermionic Electron Gun Design

التفاصيل البيبلوغرافية
العنوان: Thermal Deformation Analysis and Electron Beam Optics Simulation for a Thermionic Electron Gun Design
المؤلفون: Sung-Ju Park, Moo-Hyun Cho, Hyeong-seok Seo, Won Namkung, Seungsoo Jang, Jihyun Hwang
المصدر: Journal of the Korean Physical Society. 73:1042-1048
بيانات النشر: Korean Physical Society, 2018.
سنة النشر: 2018
مصطلحات موضوعية: Materials science, Klystron, business.industry, General Physics and Astronomy, Thermionic emission, Cathode, law.invention, Optics, Operating temperature, law, Cathode ray, Physics::Accelerator Physics, business, Beam (structure), Electron gun, Perveance
الوصف: When the thermionic electron gun of the klystron operates, the structure around the cathode is subjected to thermal deformation due to the high operating temperature of the cathode. A thermal deformation analysis of the existing electron gun with ‘cold’ dimensions (dimension on fabrication) was done using the ANSYS code to get the ‘hot’ dimensions of the electron gun on operation. After that, the optics of the emitted electron beam were simulated using two codes (EGUN and CST-PS) for the two cases of the ‘cold’ dimension and the ‘hot’ dimension. We compared the beam trajectories of the above two cases to investigate the change in the physical quantities, which would have a strong effect on the klystron performance due to the thermal deformation. The thermal deformation was found to cause a perveance change as large as 15%. The scalloping behavior was also investigated with an applied magnetic field for the two cases of cold and hot dimensions.
تدمد: 1976-8524
0374-4884
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::14558a0362d249f24ab9adc6caf4317a
https://doi.org/10.3938/jkps.73.1042
حقوق: CLOSED
رقم الأكسشن: edsair.doi...........14558a0362d249f24ab9adc6caf4317a
قاعدة البيانات: OpenAIRE
الوصف
تدمد:19768524
03744884