IPAC2016 - List of Authors (Hahn, G.)

Paper	Title	Page
MOPMR008	Development of Beam Position Monitor for a Heavy-ion Linac of KHIMA	238
	J.G. Hwang KIRAMS/KHIMA, Seoul, Republic of Korea G. Hahn, T.K. Yang KIRAMS, Seoul, Republic of Korea
	Funding: This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MSIP) (no. NRF-2014M2C3A1029534). The carbon and proton beams are produced by the electron cyclotron resonance ion source with the energy of 8 keV/u and it is accelerated up to 7 MeV/u by the RFQ and IH-DTL. The accelerated beam is injected on the synchrotron through the medium energy beam transport (MEBT). In the MEBT line of KHIMA, the stripline beam position monitor (BPM) is installed to measure the beam trajectory and orbit jitter before the beam injection at the synchrotron. It is also used to measure the phase information such as a bunch length for the de-buncher tuning in MEBT line. The BPM has the position resolution of 100 um with the diameter of 40 mm. The design study is performed and it is fabricated. In order to confirm the performance of the beam position monitor, the measurement of position accuracy and calibration by using wire test-bench, and the beam test with proton beam from MC-50 in KIRAMS are performed.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMR008
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MOPMR010	The Development of Scintillating Screen Detector for Beam Monitoring at the KHIMA Project	244
	S.Y. Noh, S.D. Chang, J.G. Hwang KIRAMS/KHIMA, Seoul, Republic of Korea G. Hahn, T.K. Yang KIRAMS, Seoul, Republic of Korea
	Funding: NRF-2014M2C3A1029534 It is important to measure the beam propeties such as position, size and intensity, when we control the medical beam qualities, So we developed the scintillation screen monitor used for beam profile monitoring and it will be installed at High Energy Beam Transport(HEBT) section to measure the beam parameters. This system consists of a terbium-doped gadolinium oxysulfide(Gd2O2S:Tb) phosphor screen and high speed charge coupled device camera. The CCD camera has the maximum 90 frame rate and 659 X 494 pixel resolution. This Camera is mounted at distance of 260mm from the center of the scintillation screen and with the angle of 45 degree to the scintillation screen which is mounted at the angle of 45 degree to the beam axis. The image analysis program was written in National Instruments LabVIEW using IMAQ driver. To reduce the image processing time, we optimized the prcessing flow and used LabVIEW built-in function. To evaluate this system, we measured the beam size and center position of the beam at KIRAMS on 50MeV cyclotron. In this paper, we present the manufacture of beam profile system based on a scintillating screen monitor and the in-beam test results of it.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMR010
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THPMB032	Design Study and Multi-particle Tracking Simulation of the IH-DTL with KONUS Beam Dynamics for KHIMA Project	3299
	Y. Lee, E.-S. Kim Korea University Sejong Campus, Sejong, Republic of Korea G. Hahn KIRAMS, Seoul, Republic of Korea Z. Li SCU, Chengdu, People's Republic of China
	The Korea Heavy Ion Medical Accelerator (KHIMA) project of the Korea Institute of Radiological and Medical Sciences (KIRAMS) has developed heavy ion medical accelerator. The injector system of the accelerator for the KHIMA project is composed of a low energy beam transport line (LEBT), radio frequency quadrupole (RFQ), interdigit H-mode drift tube linac (IH-DTL), and medium energy beam transport line (MEBT). The IH-DTL is designed with KONUS beam dynamics, and KONUS indicates a combined 0˚ structure. Optimization aims are to increase the quality of the beam and to reduce the beam loss. KONUS beam dynamics design and multi-particle tracking simulations of the IH-DTL with LORASR and TraceWIN code are performed.
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPMB032
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FRXAA01	Korea Heavy Ion Medical Accelerator Project	4243
	G.B. Kim, G. Hahn, W.T. Hwang, H. Yim KIRAMS, Seoul, Republic of Korea J.G. Hwang, C.H. Kim, C.W. Park KIRAMS/KHIMA, Seoul, Republic of Korea
	The Korea Heavy Ion Medical Accelerator (KHIMA) project is to develop 430-MeV/u heavy ion accelerator and therapy systems for medical applications. The accelerator system includes ECRIS, injector linac, synchrotron, beam transport lines, and treatment systems. The accelerator system is expected to provide stable beams very reliably, and there should be special cares and strategies in the machine construction and operations. This presentation covers all issues mentioned above.
	Slides FRXAA01 [10.869 MB]
DOI •	reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-FRXAA01
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Paper

Title

Page

Development of Beam Position Monitor for a Heavy-ion Linac of KHIMA

238

J.G. Hwang
KIRAMS/KHIMA, Seoul, Republic of Korea
G. Hahn, T.K. Yang
KIRAMS, Seoul, Republic of Korea

Funding: This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MSIP) (no. NRF-2014M2C3A1029534).
The carbon and proton beams are produced by the electron cyclotron resonance ion source with the energy of 8 keV/u and it is accelerated up to 7 MeV/u by the RFQ and IH-DTL. The accelerated beam is injected on the synchrotron through the medium energy beam transport (MEBT). In the MEBT line of KHIMA, the stripline beam position monitor (BPM) is installed to measure the beam trajectory and orbit jitter before the beam injection at the synchrotron. It is also used to measure the phase information such as a bunch length for the de-buncher tuning in MEBT line. The BPM has the position resolution of 100 um with the diameter of 40 mm. The design study is performed and it is fabricated. In order to confirm the performance of the beam position monitor, the measurement of position accuracy and calibration by using wire test-bench, and the beam test with proton beam from MC-50 in KIRAMS are performed.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMR008

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MOPMR010

The Development of Scintillating Screen Detector for Beam Monitoring at the KHIMA Project

244

S.Y. Noh, S.D. Chang, J.G. Hwang
KIRAMS/KHIMA, Seoul, Republic of Korea
G. Hahn, T.K. Yang
KIRAMS, Seoul, Republic of Korea

Funding: NRF-2014M2C3A1029534
It is important to measure the beam propeties such as position, size and intensity, when we control the medical beam qualities, So we developed the scintillation screen monitor used for beam profile monitoring and it will be installed at High Energy Beam Transport(HEBT) section to measure the beam parameters. This system consists of a terbium-doped gadolinium oxysulfide(Gd2O2S:Tb) phosphor screen and high speed charge coupled device camera. The CCD camera has the maximum 90 frame rate and 659 X 494 pixel resolution. This Camera is mounted at distance of 260mm from the center of the scintillation screen and with the angle of 45 degree to the scintillation screen which is mounted at the angle of 45 degree to the beam axis. The image analysis program was written in National Instruments LabVIEW using IMAQ driver. To reduce the image processing time, we optimized the prcessing flow and used LabVIEW built-in function. To evaluate this system, we measured the beam size and center position of the beam at KIRAMS on 50MeV cyclotron. In this paper, we present the manufacture of beam profile system based on a scintillating screen monitor and the in-beam test results of it.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPMR010

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THPMB032

Design Study and Multi-particle Tracking Simulation of the IH-DTL with KONUS Beam Dynamics for KHIMA Project

3299

Y. Lee, E.-S. Kim
Korea University Sejong Campus, Sejong, Republic of Korea
G. Hahn
KIRAMS, Seoul, Republic of Korea
Z. Li
SCU, Chengdu, People's Republic of China

The Korea Heavy Ion Medical Accelerator (KHIMA) project of the Korea Institute of Radiological and Medical Sciences (KIRAMS) has developed heavy ion medical accelerator. The injector system of the accelerator for the KHIMA project is composed of a low energy beam transport line (LEBT), radio frequency quadrupole (RFQ), interdigit H-mode drift tube linac (IH-DTL), and medium energy beam transport line (MEBT). The IH-DTL is designed with KONUS beam dynamics, and KONUS indicates a combined 0˚ structure. Optimization aims are to increase the quality of the beam and to reduce the beam loss. KONUS beam dynamics design and multi-particle tracking simulations of the IH-DTL with LORASR and TraceWIN code are performed.

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPMB032

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FRXAA01

Korea Heavy Ion Medical Accelerator Project

4243

G.B. Kim, G. Hahn, W.T. Hwang, H. Yim
KIRAMS, Seoul, Republic of Korea
J.G. Hwang, C.H. Kim, C.W. Park
KIRAMS/KHIMA, Seoul, Republic of Korea

The Korea Heavy Ion Medical Accelerator (KHIMA) project is to develop 430-MeV/u heavy ion accelerator and therapy systems for medical applications. The accelerator system includes ECRIS, injector linac, synchrotron, beam transport lines, and treatment systems. The accelerator system is expected to provide stable beams very reliably, and there should be special cares and strategies in the machine construction and operations. This presentation covers all issues mentioned above.

Slides FRXAA01 [10.869 MB]

DOI •

reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-FRXAA01

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