Study of thermionic RF-gun phase-space dynamics and slice emittance under influence of external electromagnetic fields

A high brightness electron source of ultra-small emittance and high-average current is one of the most important components for future accelerators. In a RF-electron-gun, rapid acceleration can reduce emittance growth due to space charge effects. However, twisting or rotation of the transverse phase...

وصف كامل

محفوظ في:
التفاصيل البيبلوغرافية
المؤلفون الرئيسيون: Kusoljariyakul K., Thongbai C.
التنسيق: Conference or Workshop Item
اللغة:English
منشور في: 2014
الوصول للمادة أونلاين:http://www.scopus.com/inward/record.url?eid=2-s2.0-79958195510&partnerID=40&md5=80851deb45f1ecc9017c1f0d1b2be9ab
http://cmuir.cmu.ac.th/handle/6653943832/6518
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المؤسسة: Chiang Mai University
اللغة: English
الوصف
الملخص:A high brightness electron source of ultra-small emittance and high-average current is one of the most important components for future accelerators. In a RF-electron-gun, rapid acceleration can reduce emittance growth due to space charge effects. However, twisting or rotation of the transverse phase-space distribution as a function of time is observed in thermionic RF-electron-guns and may set a lower limit to the projected beam emittance. Such rotation being caused by the variation of the RF field with time may be compensated by fields from a specific cavity. In this work, we study RF-electron-gun phase-space dynamics and emittance under the influence of external fields to evaluate the compensation schemes. © 2010 Elsevier B.V. Allrights reserved.