Finite element analysis of RF coupler in normal-low temperature

Hansol Kim, Hak Yong Lee, Chan Park, Jaeyeol Lee, Dong Yeal Lim, Jeonghoon Yoo, Myung Wook Hyun

Research output: Contribution to journalArticlepeer-review


A heavy ion accelerator is a device that accelerates heavy ions in the radio frequency (RF) range. The electric field that flows into the RF cavity continuously accelerates heavy ions in accordance with the phase of the input electromagnetic wave. For the purpose, it is necessary to design a coupler shape that can stably transfer the RF wave into the cavity. The RF coupler in a heavy ion accelerator has a large temperature difference between the input port and output port, which radiates the RF waves. It is necessary to consider the heat deflection on the RF coupler that occurs as a result of the rapid temperature gradient from an ultra-low temperature about 0 K to a room temperature about 300 K. The purpose of this study was to improve the system performance through an analysis of the intensity of the output electric field and temperature distribution considering various shapes of the RF coupler, along with an analysis of the durability considering the heat deflection and heat loss.

Original languageEnglish
Pages (from-to)1101-1107
Number of pages7
JournalTransactions of the Korean Society of Mechanical Engineers, A
Issue number10
Publication statusPublished - 2014 Oct 1

Bibliographical note

Publisher Copyright:
© 2014 The Korean Society of Mechanical Engineers.

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering


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