HIAT2015 - Classification: Accelerator Systems and Components

Paper

Title

Page

History of Solid Disk Improvement for Rotating Charge Stripper

1

H. Hasebe, N. Fukunishi, H. Imao, O. Kamigaito, M. Kase, H. Kuboki, H. Okuno
RIKEN Nishina Center, Wako, Japan

In 2007, we installed a rotating disk stripper device at the final charge stripping section for the uranium (U) beam acceleration at RIKEN RI Beam Factory. The first rotating carbon disk (C-disk) stripper was useless because of its poor surface flatness and unexpected low density. In 2012, we started the stable U beam operation using beryllium (Be) as the disk material. We successfully improved the flatness of the Be-disk by special polishing technique in 2014, and the transmission efficiency was greatly improved as well. However, it seemed to be impossible that the Be-disk withstood the heat load of the expected intensity in future, considering its deformation. Then, the polishing technique for the Be-disk improvement was applied to the Glassy carbon (GC) disk. The GC-disk flatness was improved maintaining high density. In addition, a tested high-density highly oriented graphite sheet, which is fabricated from a high polymer film in high temperature and high pressure conditions, can be applied as the charge stripping disk since the better stripping efficiency and transmission value than those of Be and the C-disk were realized.

Slides MOA1C01 [3.376 MB]

MOPA26

SI-Thyristor Matrix Array Driven Electrostatic Injection Kicker for the KEK Digital Accelerator and Beam Dynamics Analysis of Injection

1

H. Kobayashi
Tokyo City University, Tokyo, Japan
T. Adachi, T. Kawakubo
KEK, Ibaraki, Japan
X. Liu
TIT, Yokohama, Japan

For heavy ion beam injection into the KEK-DA ring [*], the electrostatic (ES) kicker is used [**]. A voltage of 20 kV is put across the electrostatic electrodes before injection so as to deflect the injected beam on the ring orbit. The ES-Kicker excitation circuit where a coaxial cable is charged to the required voltage by a resonant charging power supply and discharged just after beam injection. The SI-Thyristor Matrix Array (SI-Thy MA) as a discharging device has been developed to replace the conventional thyratron. The developed SI-Thy MA has proved to be quite useful in getting rid of inherent issues associated with thyratron's use. Recently it has turned out that ringing in a voltage pulse of 3.5 μs, which is originated from its longer switching time than that of the thyratron, affects on beam injection dynamics, resulting inμbunch formation. In order to understand this phenomenon, a computer simulation code including the longitudinal space-charge effects has been developed. Comparisons of the experimental results obtained for various parameters with the computer simulation will be discussed.
[*] T.Iwashita et al.,"KEK Digital Accelerator",Phys. Rev.ST-AB 14,071301(2011).
[**] T.Adachi and T.Kawakubo,"Electrostatic Injection Kicker for KEK-DA",Phys. Rev.ST-AB 16, 053501 (2013).

MOPA27

Recent Updates on the RIKEN RI Beam Factory Control System

1

M. Komiyama, M. Fujimaki, N. Fukunishi, K. Kumagai, A. Uchiyama
RIKEN Nishina Center, Wako, Japan
T. Nakamura
SHI Accelerator Service Ltd., Tokyo, Japan

RIKEN Radioactive Isotope Beam Factory (RIBF) is a heavy-ion accelerator facility producing unstable nuclei and studying their properties. The major part of the RIBF accelerator complex has been controlled by Experimental Physics and Industrial Control System (EPICS). After the first beam extraction from Superconducting Ring Cyclotron (SRC), the final stage accelerator of RIBF, in 2006, several kinds of extensions and updates have been performed in the EPICS-based RIBF control system as well as the accelerators and their components. We will here present the overview of the EPICS-based RIBF control system and its two latest updates. One is a newly installed safety system in addition to the existing two kinds of RIBF beam interlock systems following significant increase of the beam intensity extracted from the SRC. The other is development of some kinds of successors that are designed to be compatible with the existing aged controllers for magnet power supplies.

MOPA29

A Fast, Compact Particle Detector for Tuning Radioactive Beams at ATLAS

C. Dickerson, B. DiGiovine, C.R. Hoffman, L.Y. Lin, R.C. Pardo, E. Rehm, G. Savard
ANL, Argonne, Illinois, USA
C. Deibel, J. Lai, D. Santiago-Gonzalez
Luisiana State University, Department of Physics and Astronomy, Baton Rouge, USA

Funding: This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under contract number DE-AC02-06CH11357.
At the ATLAS we are developing a fast, compact particle detector to aid the tuning of low intensity beam constituents with relatively high intensity (>100x) contaminants. These conditions are regularly encountered during radioactive ion beam (RIB) production via the in-flight method, or when charge breeding fission fragments from CARIBU. Presently silicon barrier detectors (SBD) are used for mass identification. However, the total acceptable SBD rate is limited to ~1000 pps, so the signal rate from any minority constituents 100x less intense is typically much too slow to enable meaningful accelerator optimization. In addition, the performance of SBDs deteriorates after a relatively low integrated flux. The in-flight method of RIB production produce beams with energies 5-15 MeV/u and masses less than 35 AMU, while beams from CARIBU are typically 80 < A < 160 and accelerated to energies of 4-10 MeV/u. Our goal is to build a radiation hard detector capable of Z and A identification with ~5% energy resolution at a total rate of 105 pps over these energy and mass ranges. The conceptual design of the detector and simulated performance results will be presented.

MOPA31

Novel Turn-key Solid-State RF Amplifiers for Medical Heavy Ion Accelerators

S.G. Keens, M. Frei, B. Fritsche
Ampegon AG, Turgi, Switzerland
T. Garvey, M.A. Gaspar
PSI, Villigen PSI, Switzerland

Funding: This project has been supported by the Swiss Commission on Technology and Innovation under KTI grant number 13192. PFFLM-IW.
When considering complex heavy ion accelerator systems for medical use, scientists and engineers rapidly recognize the importance of reliability and simple maintenance for components such as RF amplifiers. While amplifiers used in particle accelerators have typically been designed around vacuum tube technology, developments in solid state RF amplifiers have led to new systems offering the potential for extremely high reliability and in-built system redundancy. These characteristics are especially important for expensive medical systems that require 24/7 operation to maximize efficiency. In conjunction with the Paul Scherrer Institute, we have developed a novel 500MHz solid state RF amplifier for use in medical accelerators. This modular system has been initially designed and built to deliver 65kW output RF power with exceptional power efficiency and extremely good reliability. The modular design allows it to be adapted for power levels up to 300kW at frequencies between 200MHz - 1.3GHz. Our presentation reviews the 65kW system, reporting results from performance and resilience testing, and developments for future use in heavy ion accelerators and other high power RF applications.

MOPA32

Operation of Gas Strippers at RIBF; Thinning Effect of Gas Strippers for High-Intensity Very Heavy Ion Beams

H. Imao
RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama, Japan
H. Hasebe, O. Kamigaito, M. Kase, H. Okuno
RIKEN Nishina Center, Wako, Japan
H. Kuboki
KEK, Tokai, Ibaraki, Japan

Intensity upgrade of very-heavy ions such as U and Xe beams is one of the main concerns at the RIKEN Radioactive Isotope Beam Factory (RIBF). In the acceleration of them, the possible output intensities have been principally limited by the lifetime problem of the carbon foil strippers. In previous years, realization of the gas strippers was an important breakthrough for intensity upgrade of very heavy ion beams. The recirculating He gas stripper for uranium beams has been stably operated since 2012. The air stripper for xenon beams was also successfully operated in 2013. For pursuing further high intensities of very heavy ion beams, we need to understand the application limit of the present gas strippers. Density reduction of gas along the trajectories of the beams caused by the heat load (thinning effect) is a factor which will determine the application limit of the gas stripper. We will present the recent operational situation of gas strippers involving the study of the gas thinning effect.

TUM1I01

Status and Upgrade of HIRFL

Y.J. Yuan, D.Q. Gao, P. Li, X. Ma, L.J. Mao, R.S. Mao, L.T. Sun, J.X. Wu, J.W. Xia, Z. Xu, J.C. Yang, X. Yin, W. Zhang, X.H. Zhang, H.W. Zhao
IMP/CAS, Lanzhou, People's Republic of China
S.A. Litvinov, Yu.A. Litvinov
GSI, Darmstadt, Germany

The Heavy Ion Research Facility at Lanzhou (HIRFL) is the only one large scale heavy ion accelerator complex that uses cyclotron (SFC and SSC) as injector, synchrotron (CSRm) for accumulation and post acceleration, storage ring (CSRe) for in ring experiments in Asia. To reach the increasing requirements from nuclear physics, atomic physics, interdisciplinary science and their applications, many upgrading plans were launched or scheduled. The present status and recent upgrading plans of HIRFL will be introduced in this paper. For the upgrading plans, the development of new linac injector for HIRFL and the plans to improve the performance of CSRe for experiments will be discussed in detail.

Slides TUM1I01 [41.712 MB]

TUA1C01

A Pulsed Gas Stripper for Stripping of High-Intensity, Heavy-Ion Beams at 1.4 MeV/u at the GSI UNILAC

1

P. Scharrer, W.A. Barth, Ch.E. Düllmann, J. Khuyagbaatar
HIM, Mainz, Germany
W.A. Barth, M. Bevcic, Ch.E. Düllmann, L. Groening, K.P. Horn, E. Jäger, J. Khuyagbaatar, J. Krier, P. Scharrer, A. Yakushev
GSI, Darmstadt, Germany
Ch.E. Düllmann, P. Scharrer
Mainz University, Mainz, Germany

The GSI UNILAC in combination with SIS18 will serve as a high-current, heavy-ion injector for the future FAIR. It has to meet high demands in terms of beam brilliance at a low duty factor (100 mus beam pulse length, 2.7 Hz repetition rate). An advanced 1.4 MeV/u gas stripper setup has been developed, aiming at an enhanced yield into the required charge states. The setup delivers short, high-density gas pulses in synchronization with the beam pulse. This provides an increased gas density at a reduced gas load for the differential pumping system. In recent measurements, high-intensity, heavy-ion beams of U⁴⁺ were successfully stripped and separated for the desired charge state. The modified stripper setup, as well as major results, are presented, including a comparison to the present gas stripper based on a N₂ gas-jet. The stripping efficiency into the desired 28⁺ charge state was significantly increased by up to 60 % using a hydrogen stripper target while the beam quality remained similar.

Slides TUA1C01 [3.207 MB]

WEM1C02

Integrating the TRACK Beam Simulation Code to Improve ATLAS Operations

C. Dickerson, B. Mustapha, C.E. Peters
ANL, Argonne, Illinois, USA

Funding: This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under contract number DE-AC02-06CH11357.
At the Argonne Tandem Linear Accelerator System (ATLAS) we are integrating TRACK, three dimensional particle tracking software that numerically integrates the equations of motion, into the accelerator control system. ATLAS delivers a variety of ions (1 – 238 AMU) at various energies (1 – 15 MeV/u) to multiple targets. By comparing simulated and observed performance, model driven operations will improve the understanding of the facility, reduce tune times, and improve the beam quality for these diverse operating conditions. This paper will describe the work to interface TRACK with the real-time accelerator control system, and the results of simulations performed based on accelerator configurations extracted directly from the control system databases.

Slides WEM1C02 [1.657 MB]

WEA2I02

The Current Status of KBSI Heavy Ion Accelerator Project

M. Won, S. Choi, J.G. Hong, H.G. Kim, S.J. Kim, B.S. Lee, J.W. Ok, J.Y. Park, C.S. Shin, J.H. Yoon
Korea Basic Science Institute, Busan, Republic of Korea
J. Bahng
Kyungpook National University, Daegu, Republic of Korea

A low energy heavy ion beam facility is being developed at Busan Center, Korea Basic Science Institute (KBSI), since 2009. The main aim of this facility is the production of high current fast neutron for the radiography. We have developed a superconducting Electron Cyclotron Resonance Ion Source (SC-ECRIS) using 28 GHz microwave source. After a first plasma ignition, various ion beams were successfully extracted since Feb. 2015. We already assembled the Low Energy Beam Transport (LEBT) line and diagnosis system of extracted after the design study of LEBT system considering beam dynamics. By adopting a RFQ as a first stage of ion beam acceleration, the extracted beam from ECRIS will be accelerated to 500 keV/Li³⁺ and more accelerated up to 2.7 MeV followed by a DTL. The fabrication of RFQ is in progress that will be completed in this year. In parallel, we are designing the APF-IH type DTL for a compact and reliable linac design. In this time, I will introduce the current status of KBSI heavy ion accelerator development.

Slides WEA2I02 [4.072 MB]

FRM1C04

Design, Fabrication and Testing of Compact Diagnostic System at IUAC

1

R.V. Hariwal, S. Kedia, R. Mehta
IUAC, New Delhi, India
H.K. Malik
Indian Institute of Technology, New Delhi, India
V.A. Verzilov
TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada

Funding: University Grants Commission India
High Current Injector (HCI) is an upcoming accelerator facility at Inter-University Accelerator Centre, New Delhi, India. This comprises of high temperature superconducting Electron Cyclotron Resonance (HTS-ECR) ion source, normal temperature Radio Frequency Quadrupole (RFQ), IH-type Drift Tube Linear (DTL) resonators and low beta superconducting Quarter Wave Resonator (QWR) cavities to accelerate heavy ions having A/q ≤ 6. The compact diagnostic system consists of Faraday cup, slit scanner and capacitive pick up to measure the current, profile, position and bunch length of incident ion beam respectively. It is especially designed and fabricated to measure the beam parameters at the entrance of each of six IH-DTL resonators. The compactness is preferred to minimize the transverse and longitudinal emittance growth at the entrance of DTL resonators. The beam current and profile measurements of various heavy ion beams at different energy have been carried out to validate the design and fabrication of the diagnostic system. Here we are presenting the detailed information about its design, fabrication and various test results.

Paper	Title	Page
MOA1C01	History of Solid Disk Improvement for Rotating Charge Stripper	1
	H. Hasebe, N. Fukunishi, H. Imao, O. Kamigaito, M. Kase, H. Kuboki, H. Okuno RIKEN Nishina Center, Wako, Japan
	In 2007, we installed a rotating disk stripper device at the final charge stripping section for the uranium (U) beam acceleration at RIKEN RI Beam Factory. The first rotating carbon disk (C-disk) stripper was useless because of its poor surface flatness and unexpected low density. In 2012, we started the stable U beam operation using beryllium (Be) as the disk material. We successfully improved the flatness of the Be-disk by special polishing technique in 2014, and the transmission efficiency was greatly improved as well. However, it seemed to be impossible that the Be-disk withstood the heat load of the expected intensity in future, considering its deformation. Then, the polishing technique for the Be-disk improvement was applied to the Glassy carbon (GC) disk. The GC-disk flatness was improved maintaining high density. In addition, a tested high-density highly oriented graphite sheet, which is fabricated from a high polymer film in high temperature and high pressure conditions, can be applied as the charge stripping disk since the better stripping efficiency and transmission value than those of Be and the C-disk were realized.
	Slides MOA1C01 [3.376 MB]

MOPA26	SI-Thyristor Matrix Array Driven Electrostatic Injection Kicker for the KEK Digital Accelerator and Beam Dynamics Analysis of Injection	1
	H. Kobayashi Tokyo City University, Tokyo, Japan T. Adachi, T. Kawakubo KEK, Ibaraki, Japan X. Liu TIT, Yokohama, Japan
	For heavy ion beam injection into the KEK-DA ring [], the electrostatic (ES) kicker is used []. A voltage of 20 kV is put across the electrostatic electrodes before injection so as to deflect the injected beam on the ring orbit. The ES-Kicker excitation circuit where a coaxial cable is charged to the required voltage by a resonant charging power supply and discharged just after beam injection. The SI-Thyristor Matrix Array (SI-Thy MA) as a discharging device has been developed to replace the conventional thyratron. The developed SI-Thy MA has proved to be quite useful in getting rid of inherent issues associated with thyratron's use. Recently it has turned out that ringing in a voltage pulse of 3.5 μs, which is originated from its longer switching time than that of the thyratron, affects on beam injection dynamics, resulting inμbunch formation. In order to understand this phenomenon, a computer simulation code including the longitudinal space-charge effects has been developed. Comparisons of the experimental results obtained for various parameters with the computer simulation will be discussed. [] T.Iwashita et al.,"KEK Digital Accelerator",Phys. Rev.ST-AB 14,071301(2011). [**] T.Adachi and T.Kawakubo,"Electrostatic Injection Kicker for KEK-DA",Phys. Rev.ST-AB 16, 053501 (2013).

MOPA27	Recent Updates on the RIKEN RI Beam Factory Control System	1
	M. Komiyama, M. Fujimaki, N. Fukunishi, K. Kumagai, A. Uchiyama RIKEN Nishina Center, Wako, Japan T. Nakamura SHI Accelerator Service Ltd., Tokyo, Japan
	RIKEN Radioactive Isotope Beam Factory (RIBF) is a heavy-ion accelerator facility producing unstable nuclei and studying their properties. The major part of the RIBF accelerator complex has been controlled by Experimental Physics and Industrial Control System (EPICS). After the first beam extraction from Superconducting Ring Cyclotron (SRC), the final stage accelerator of RIBF, in 2006, several kinds of extensions and updates have been performed in the EPICS-based RIBF control system as well as the accelerators and their components. We will here present the overview of the EPICS-based RIBF control system and its two latest updates. One is a newly installed safety system in addition to the existing two kinds of RIBF beam interlock systems following significant increase of the beam intensity extracted from the SRC. The other is development of some kinds of successors that are designed to be compatible with the existing aged controllers for magnet power supplies.

MOPA29	A Fast, Compact Particle Detector for Tuning Radioactive Beams at ATLAS
	C. Dickerson, B. DiGiovine, C.R. Hoffman, L.Y. Lin, R.C. Pardo, E. Rehm, G. Savard ANL, Argonne, Illinois, USA C. Deibel, J. Lai, D. Santiago-Gonzalez Luisiana State University, Department of Physics and Astronomy, Baton Rouge, USA
	Funding: This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under contract number DE-AC02-06CH11357. At the ATLAS we are developing a fast, compact particle detector to aid the tuning of low intensity beam constituents with relatively high intensity (>100x) contaminants. These conditions are regularly encountered during radioactive ion beam (RIB) production via the in-flight method, or when charge breeding fission fragments from CARIBU. Presently silicon barrier detectors (SBD) are used for mass identification. However, the total acceptable SBD rate is limited to ~1000 pps, so the signal rate from any minority constituents 100x less intense is typically much too slow to enable meaningful accelerator optimization. In addition, the performance of SBDs deteriorates after a relatively low integrated flux. The in-flight method of RIB production produce beams with energies 5-15 MeV/u and masses less than 35 AMU, while beams from CARIBU are typically 80 < A < 160 and accelerated to energies of 4-10 MeV/u. Our goal is to build a radiation hard detector capable of Z and A identification with ~5% energy resolution at a total rate of 105 pps over these energy and mass ranges. The conceptual design of the detector and simulated performance results will be presented.

MOPA31	Novel Turn-key Solid-State RF Amplifiers for Medical Heavy Ion Accelerators
	S.G. Keens, M. Frei, B. Fritsche Ampegon AG, Turgi, Switzerland T. Garvey, M.A. Gaspar PSI, Villigen PSI, Switzerland
	Funding: This project has been supported by the Swiss Commission on Technology and Innovation under KTI grant number 13192. PFFLM-IW. When considering complex heavy ion accelerator systems for medical use, scientists and engineers rapidly recognize the importance of reliability and simple maintenance for components such as RF amplifiers. While amplifiers used in particle accelerators have typically been designed around vacuum tube technology, developments in solid state RF amplifiers have led to new systems offering the potential for extremely high reliability and in-built system redundancy. These characteristics are especially important for expensive medical systems that require 24/7 operation to maximize efficiency. In conjunction with the Paul Scherrer Institute, we have developed a novel 500MHz solid state RF amplifier for use in medical accelerators. This modular system has been initially designed and built to deliver 65kW output RF power with exceptional power efficiency and extremely good reliability. The modular design allows it to be adapted for power levels up to 300kW at frequencies between 200MHz - 1.3GHz. Our presentation reviews the 65kW system, reporting results from performance and resilience testing, and developments for future use in heavy ion accelerators and other high power RF applications.

MOPA32	Operation of Gas Strippers at RIBF; Thinning Effect of Gas Strippers for High-Intensity Very Heavy Ion Beams
	H. Imao RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama, Japan H. Hasebe, O. Kamigaito, M. Kase, H. Okuno RIKEN Nishina Center, Wako, Japan H. Kuboki KEK, Tokai, Ibaraki, Japan
	Intensity upgrade of very-heavy ions such as U and Xe beams is one of the main concerns at the RIKEN Radioactive Isotope Beam Factory (RIBF). In the acceleration of them, the possible output intensities have been principally limited by the lifetime problem of the carbon foil strippers. In previous years, realization of the gas strippers was an important breakthrough for intensity upgrade of very heavy ion beams. The recirculating He gas stripper for uranium beams has been stably operated since 2012. The air stripper for xenon beams was also successfully operated in 2013. For pursuing further high intensities of very heavy ion beams, we need to understand the application limit of the present gas strippers. Density reduction of gas along the trajectories of the beams caused by the heat load (thinning effect) is a factor which will determine the application limit of the gas stripper. We will present the recent operational situation of gas strippers involving the study of the gas thinning effect.

TUM1I01	Status and Upgrade of HIRFL
	Y.J. Yuan, D.Q. Gao, P. Li, X. Ma, L.J. Mao, R.S. Mao, L.T. Sun, J.X. Wu, J.W. Xia, Z. Xu, J.C. Yang, X. Yin, W. Zhang, X.H. Zhang, H.W. Zhao IMP/CAS, Lanzhou, People's Republic of China S.A. Litvinov, Yu.A. Litvinov GSI, Darmstadt, Germany
	The Heavy Ion Research Facility at Lanzhou (HIRFL) is the only one large scale heavy ion accelerator complex that uses cyclotron (SFC and SSC) as injector, synchrotron (CSRm) for accumulation and post acceleration, storage ring (CSRe) for in ring experiments in Asia. To reach the increasing requirements from nuclear physics, atomic physics, interdisciplinary science and their applications, many upgrading plans were launched or scheduled. The present status and recent upgrading plans of HIRFL will be introduced in this paper. For the upgrading plans, the development of new linac injector for HIRFL and the plans to improve the performance of CSRe for experiments will be discussed in detail.
	Slides TUM1I01 [41.712 MB]

TUA1C01	A Pulsed Gas Stripper for Stripping of High-Intensity, Heavy-Ion Beams at 1.4 MeV/u at the GSI UNILAC	1
	P. Scharrer, W.A. Barth, Ch.E. Düllmann, J. Khuyagbaatar HIM, Mainz, Germany W.A. Barth, M. Bevcic, Ch.E. Düllmann, L. Groening, K.P. Horn, E. Jäger, J. Khuyagbaatar, J. Krier, P. Scharrer, A. Yakushev GSI, Darmstadt, Germany Ch.E. Düllmann, P. Scharrer Mainz University, Mainz, Germany
	The GSI UNILAC in combination with SIS18 will serve as a high-current, heavy-ion injector for the future FAIR. It has to meet high demands in terms of beam brilliance at a low duty factor (100 mus beam pulse length, 2.7 Hz repetition rate). An advanced 1.4 MeV/u gas stripper setup has been developed, aiming at an enhanced yield into the required charge states. The setup delivers short, high-density gas pulses in synchronization with the beam pulse. This provides an increased gas density at a reduced gas load for the differential pumping system. In recent measurements, high-intensity, heavy-ion beams of U⁴⁺ were successfully stripped and separated for the desired charge state. The modified stripper setup, as well as major results, are presented, including a comparison to the present gas stripper based on a N₂ gas-jet. The stripping efficiency into the desired 28⁺ charge state was significantly increased by up to 60 % using a hydrogen stripper target while the beam quality remained similar.
	Slides TUA1C01 [3.207 MB]

WEM1C02	Integrating the TRACK Beam Simulation Code to Improve ATLAS Operations
	C. Dickerson, B. Mustapha, C.E. Peters ANL, Argonne, Illinois, USA
	Funding: This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under contract number DE-AC02-06CH11357. At the Argonne Tandem Linear Accelerator System (ATLAS) we are integrating TRACK, three dimensional particle tracking software that numerically integrates the equations of motion, into the accelerator control system. ATLAS delivers a variety of ions (1 – 238 AMU) at various energies (1 – 15 MeV/u) to multiple targets. By comparing simulated and observed performance, model driven operations will improve the understanding of the facility, reduce tune times, and improve the beam quality for these diverse operating conditions. This paper will describe the work to interface TRACK with the real-time accelerator control system, and the results of simulations performed based on accelerator configurations extracted directly from the control system databases.
	Slides WEM1C02 [1.657 MB]

WEA2I02	The Current Status of KBSI Heavy Ion Accelerator Project
	M. Won, S. Choi, J.G. Hong, H.G. Kim, S.J. Kim, B.S. Lee, J.W. Ok, J.Y. Park, C.S. Shin, J.H. Yoon Korea Basic Science Institute, Busan, Republic of Korea J. Bahng Kyungpook National University, Daegu, Republic of Korea
	A low energy heavy ion beam facility is being developed at Busan Center, Korea Basic Science Institute (KBSI), since 2009. The main aim of this facility is the production of high current fast neutron for the radiography. We have developed a superconducting Electron Cyclotron Resonance Ion Source (SC-ECRIS) using 28 GHz microwave source. After a first plasma ignition, various ion beams were successfully extracted since Feb. 2015. We already assembled the Low Energy Beam Transport (LEBT) line and diagnosis system of extracted after the design study of LEBT system considering beam dynamics. By adopting a RFQ as a first stage of ion beam acceleration, the extracted beam from ECRIS will be accelerated to 500 keV/Li³⁺ and more accelerated up to 2.7 MeV followed by a DTL. The fabrication of RFQ is in progress that will be completed in this year. In parallel, we are designing the APF-IH type DTL for a compact and reliable linac design. In this time, I will introduce the current status of KBSI heavy ion accelerator development.
	Slides WEA2I02 [4.072 MB]

FRM1C04	Design, Fabrication and Testing of Compact Diagnostic System at IUAC	1
	R.V. Hariwal, S. Kedia, R. Mehta IUAC, New Delhi, India H.K. Malik Indian Institute of Technology, New Delhi, India V.A. Verzilov TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
	Funding: University Grants Commission India High Current Injector (HCI) is an upcoming accelerator facility at Inter-University Accelerator Centre, New Delhi, India. This comprises of high temperature superconducting Electron Cyclotron Resonance (HTS-ECR) ion source, normal temperature Radio Frequency Quadrupole (RFQ), IH-type Drift Tube Linear (DTL) resonators and low beta superconducting Quarter Wave Resonator (QWR) cavities to accelerate heavy ions having A/q ≤ 6. The compact diagnostic system consists of Faraday cup, slit scanner and capacitive pick up to measure the current, profile, position and bunch length of incident ion beam respectively. It is especially designed and fabricated to measure the beam parameters at the entrance of each of six IH-DTL resonators. The compactness is preferred to minimize the transverse and longitudinal emittance growth at the entrance of DTL resonators. The beam current and profile measurements of various heavy ion beams at different energy have been carried out to validate the design and fabrication of the diagnostic system. Here we are presenting the detailed information about its design, fabrication and various test results.