IPAC2015 - List of Authors (Jang, H.)

Paper	Title	Page
MOPJE016	Start-to-End Simulation for RAON Superconducting Linac	311
	H. Jang, J.-H. Jang, H. Jin IBS, Daejeon, Republic of Korea
	An ion accelerator, RAON is going to be built in Daejeon, Korea by Rare Isotope Science Project(RISP) team in Institute of Basic Science(IBS). The linac part of RAON consists of two low energy linacs, one high energy linac and two bending section for transporting accelerated low energy ions to high energy linac. It is planned to accelerate many diverse ions like proton, carbon, calcium, uranium, etc. which have different A/q values. Consequently the lattice design for each ion and to investigate beam dynamics issues for each case are one of the important topics for this project. For enhancement of beam acceleration a study to suppress emittance growth and to maximize the longitudinal acceptance is conducted while designing the RAON lattice. In this presentation the designed linac lattices for various ions and start-to-end simulation results will be described.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPJE016
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MOPJE017	Error Analysis and Correction at the Main LEBT of RAON Heavy Ion Accelerator	314
	H. Jin, I.S. Hong, H. Jang, J.-H. Jang IBS, Daejeon, Republic of Korea
	The main Low Energy Beam Transport (LEBT) section of Rare isotope Accelerator Of Newness (RAON) heavy ion accelerator is designed to transport the ion beams which are generated by Electron Cyclotron Resonance Ion Source (ECR-IS) to the Radio Frequency Quadrupole (RFQ). In the main LEBT, one or two beams are selected among a variety of ion beams to meet the beamline experiment requirements such as beam charge and current. In a uranium beam case, two charge-state, 33+ and 34+, beams are chosen and transported to the RFQ. For transportation of two charge-state beams, beams can be seriously affected by dipole kick or unexpected dispersion caused by magnet errors. These effects of magnet or cavity errors lead to beam loss at the main LEBT or RFQ. Therefore, the effect to the beam orbit and size should be identified and the research for reducing such effect should be required in the main LEBT. In this paper, we will examine the orbit distortion and beam size growth caused by magnet errors and discuss the correction of errors by using correctors and BPMs.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPJE017
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THPF072	Beam Optics of RISP Linac using Dynac Code	3845
	J.-H. Jang, I.S. Hong, H. Jang, D. Jeon, H. Jin, H.J. Kim IBS, Daejeon, Republic of Korea
	Funding: This work was supported by the Rare Isotope Science Project of Institute for Basic Science funded by Ministry of Science, ICT and Future Planning. The RISP (Rare Isotope Science Project) is developing a superconducting linac which accelerates uranium beams up to 200MeV/u with the beam power of 400kW. The linac consists of an injector which includes an ECR ion source and an RFQ, and superconducting cavities which include QWR (Quarter Wave Resonator), HWR (Half Wave Resonator), and SSR (Single Spoke Resonator). Up to HWR, two charge state beams will be accelerated to achieve the required beam current and then five charge state beams will be used to obtain the higher acceleration efficiency. In this work, we performed the beam optics calculation by using a beam dynamics code DYNAC in order to study a possibility of the code as an online model. We compared the results with the calculation in the baseline design by TRACK code.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-THPF072
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Paper

Title

Page

Start-to-End Simulation for RAON Superconducting Linac

311

H. Jang, J.-H. Jang, H. Jin
IBS, Daejeon, Republic of Korea

An ion accelerator, RAON is going to be built in Daejeon, Korea by Rare Isotope Science Project(RISP) team in Institute of Basic Science(IBS). The linac part of RAON consists of two low energy linacs, one high energy linac and two bending section for transporting accelerated low energy ions to high energy linac. It is planned to accelerate many diverse ions like proton, carbon, calcium, uranium, etc. which have different A/q values. Consequently the lattice design for each ion and to investigate beam dynamics issues for each case are one of the important topics for this project. For enhancement of beam acceleration a study to suppress emittance growth and to maximize the longitudinal acceptance is conducted while designing the RAON lattice. In this presentation the designed linac lattices for various ions and start-to-end simulation results will be described.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPJE016

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reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

MOPJE017

Error Analysis and Correction at the Main LEBT of RAON Heavy Ion Accelerator

314

H. Jin, I.S. Hong, H. Jang, J.-H. Jang
IBS, Daejeon, Republic of Korea

The main Low Energy Beam Transport (LEBT) section of Rare isotope Accelerator Of Newness (RAON) heavy ion accelerator is designed to transport the ion beams which are generated by Electron Cyclotron Resonance Ion Source (ECR-IS) to the Radio Frequency Quadrupole (RFQ). In the main LEBT, one or two beams are selected among a variety of ion beams to meet the beamline experiment requirements such as beam charge and current. In a uranium beam case, two charge-state, 33+ and 34+, beams are chosen and transported to the RFQ. For transportation of two charge-state beams, beams can be seriously affected by dipole kick or unexpected dispersion caused by magnet errors. These effects of magnet or cavity errors lead to beam loss at the main LEBT or RFQ. Therefore, the effect to the beam orbit and size should be identified and the research for reducing such effect should be required in the main LEBT. In this paper, we will examine the orbit distortion and beam size growth caused by magnet errors and discuss the correction of errors by using correctors and BPMs.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-MOPJE017

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPF072

Beam Optics of RISP Linac using Dynac Code

3845

J.-H. Jang, I.S. Hong, H. Jang, D. Jeon, H. Jin, H.J. Kim
IBS, Daejeon, Republic of Korea

Funding: This work was supported by the Rare Isotope Science Project of Institute for Basic Science funded by Ministry of Science, ICT and Future Planning.
The RISP (Rare Isotope Science Project) is developing a superconducting linac which accelerates uranium beams up to 200MeV/u with the beam power of 400kW. The linac consists of an injector which includes an ECR ion source and an RFQ, and superconducting cavities which include QWR (Quarter Wave Resonator), HWR (Half Wave Resonator), and SSR (Single Spoke Resonator). Up to HWR, two charge state beams will be accelerated to achieve the required beam current and then five charge state beams will be used to obtain the higher acceleration efficiency. In this work, we performed the beam optics calculation by using a beam dynamics code DYNAC in order to study a possibility of the code as an online model. We compared the results with the calculation in the baseline design by TRACK code.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2015-THPF072

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)