Author: Jang, J.-H.
Paper Title Page
MOPC031 Performance of a 13 MHz Cavity for an RF Implanter at PEFP* 136
  • T.A. Trinh
    UST, Daejeon, Republic of Korea
  • Y.-S. Cho, J.-H. Jang, D.I. Kim, H.S. Kim, H.-J. Kwon, B.-S. Park, K.T. Seol
    KAERI, Daejon, Republic of Korea
  Funding: This work is supported by the Ministry of Education, Science and Technology of the Korean Government
A 13 MHz - normal conducting cavity for an rf implanter has been successfully developed at PEFP (Proton Engineering Frontier Project). It consists of an inductive coil, accelerating electrodes and a ground electrode for the inductor. Quality factor of 2074 and critical coupling were achieved at resonant frequency of 12.658 MHz. Rf power of 1 kW was forwarded to the cavity without any spark in the cavity. Beam test was then carried out with a 27 keV helium beam generated from a Duoplasmatron ion source. The results showed that the helium beam was accelerated to final energy of 120 keV with energy spread of 1%. Detail experiments and results are addressed in this presentation.
WEPC146 Design and Implementation of Distributed Control System for PEFP 100-MeV Proton Accelerator* 2334
  • Y.-G. Song, Y.-S. Cho, J.-H. Jang, H.-J. Kwon
    KAERI, Daejon, Republic of Korea
  Funding: This work is supported by the Ministry of Education, Science and Technology of the Korean Government.
The Proton Engineering Frontier Project (PEFP) has been developing the control system for 100-MeV proton accelerator. The PEFP control system should be designed to fit control conditions based on networked and distributed real-time system composed of several sub-systems such as machine control, diagnostic control, timing, and interlock. In order to implement the distributed control system, the Experimental Physics and Industrial Control System (EPICS) has been chosen as the middleware of PEFP control system. The EPICS software provides a distributed architecture that supports a wide range of solution such as independent programming tool, operator interface tool, database and web-based archiving tools. In this paper, we will present the details of the design and implementation issues of the PEFP control system.
WEPS055 Beam Commissioning Plan of PEFP 100-MeV linac 2619
  • J.-H. Jang, Y.-S. Cho, H.-J. Kwon
    KAERI, Daejon, Republic of Korea
  Funding: This work was supported by Ministry of Education, Science and Technology of the Korean Government.
Proton engineering frontier project (PEFP) is developing a 100-MeV proton linear accelerator. It is scheduled to install the linac at Kyeungju site from the end of 2011. The linear accelerator consists of a 50-keV injector, a 3-MeV radio-frequency quadrupole (RFQ), and a 100-MeV drift tube linac (DTL). An important characteristic of this accelerator is extracting 20-MeV proton beams just after four DTL tanks. In this region, a medium energy beam transport (MEBT) will be installed for matching the proton beam to the following accelerator and extracting proton beams. The 100-MeV proton beams will be supplied to the users through another beam line which is located after the linac. This work summarized the beam commissioning plan of the proton linear accelerator.
WEPS100 Status of 100-MeV Proton Linac Development for PEFP 2742
  • Y.-S. Cho, S. Cha, I.-S. Hong, J.-H. Jang, D.I. Kim, H.S. Kim, H.-J. Kwon, K. Min, B.-S. Park, J.Y. Ryu, K.T. Seol, Y.-G. Song, S.P. Yun
    KAERI, Daejon, Republic of Korea
  • J.S. Hong
    KAPRA, Cheorwon, Republic of Korea
  Funding: This wok was supported through the Proton Engineering Frontier Project by the Ministry of Education, Science and Technology of Korea.
The Proton Engineering Frontier Project (PEFP) is developing a 100-MeV high-duty-factor proton linac, which consists of a 50-keV microwave ion source, a 3-MeV radio frequency quadrupole, a 100-MeV drift tube linac, a 20-MeV beam transport line, and a 100-MeV beam transport line. It will supply proton beams of 20-MeV and 100-MeV with peak current of 20 mA to users for proton beam applications. The beam duty factor will be 24% and 8% respectively. The 20-MeV front-end accelerator has been installed and operated at the KAERI Daejeon test stand for user service, and the rest part of the accelerator has been fabricated and will be installed at the new site of Gyeongju City in 2011. The detailed status of the 100-MeV proton linac will be presented.
THPS022 Improvement of the 20 MeV Proton Accelerator at KAERI 3466
  • H.-J. Kwon, Y.-S. Cho, J.-H. Jang, D.I. Kim, H.S. Kim, K.T. Seol, Y.-G. Song
    KAERI, Daejon, Republic of Korea
  Funding: This work is supported by the Ministry of Science and Technology of the Korean government.
The 20 MeV proton accelerator has been operating since 2007 when it got a operational license at Korea Atomic Energy Research Institute (KAERI) by Proton Engineering Frontier Project (PEFP). A microwave ion source was newly developed to satisfy the requirement of minimum 100 hour operation time without maintenance. After the long time operation test at test bench, it was installed to drive the 20 MeV proton accelerator. The beam profile and emittance were measured to check the characteristics of the accelerator both at the LEBT and at the end of the 20 MeV DTL. In this paper, the microwave ion source is presented and the measurement results of the beam property are discussed.