CYCLOTRONS2022 - List of Keywords (network)

Paper	Title	Other Keywords	Page
MOPO005	Impedance Characteristic Analysis and Matching Network Design for a 100 mA H⁻ Ion Source	plasma, ion-source, impedance, ISOL	58
	A.X. Ding, H.R. Cai, X.L. Jia, P.Z. Li, Z.J. Nong, G.F. Pan, J.F. Wang, H. Zhang, T.J. Zhang, X. Zheng CIAE, Beijing, People’s Republic of China
	China Institute of Atomic Energy (CIAE) has developed a series of multi-cusp H⁻ ion sources (IS) with DC beam intensity ranging from 3 to 18 mA for high intensity proton cyclotron uses such as cyclotron PET application, neutron source and boron neutron capture therapy (BNCT) facilities. Based on the previous experiences, a new project of radio frequency (RF) antenna driving ion source has been launched for pulse accelerator research. This new ion source is expected to provide over 100 mA peak intensity H⁻ beams of 60 keV and a longer maintenance interval than conventional filament-driving ion sources above. Impedance matching is indispensable for efficient RF power coupling in the whole working process of the ion source for high-intensity H⁻ beam extraction. In this paper, impedance characteristic of the IS antenna with various plasma loading is analyzed. Eight typical matching topologies are discussed on their electrical requirements. A type-L and a type-γ network are finally selected for the 2 MHz and 13.56 MHz chains respectively. This design may provide a better compromise between the matching performance and the cost of implementation for a wide dynamic loading range. Design of the network is evaluated on the power delivering efficiency in each of the two RF chains and isolation between one and the other. The IS structure and near-future work plan are also presented.
	Poster MOPO005 [1.228 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOPO005
About •	Received ※ 24 December 2022 — Revised ※ 11 January 2023 — Accepted ※ 01 February 2023 — Issue date ※ 25 April 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

TUBO04	Evaluation of PLC-Based EtherNet/IP Communication for Upgrade of Electromagnet Power Supply Control at RIBF	controls, Ethernet, EPICS, power-supply	134
	A. Uchiyama, N. Fukunishi, M. Komiyama, K. Kumagai RIKEN Nishina Center, Wako, Japan
	In the Radioactive Isotope Beam Factory (RIBF), a front-end controller consisting of a computer automated measurement and control (CAMAC)-based system and I/O devices are utilized for the power supplies of many electromagnets upstream from the RIKEN RING Cyclotron. The CPU installed in the system is an x86-based CAMAC crate controller known as "CC/NET". An experimental physics and industrial control system (EPICS) input/output controller (IOC) running embedded Linux is used to remotely control the electromagnet power sup-plies. However, these CAMAC-based systems are outdated and require replacement. The FA-M3 programmable logic controller (PLC) is an alternative candidate device that can be incorporated into the magnet power supply. However, a high-reliability network between the EPICS IOC and the device is required compared to a conventional socket connection via Ethernet. Therefore, we evaluated a system that uses EtherNet/IP to communicate between these devices and the EPICS IOC. The Ether-Net/IP system is based on the TCP/IP protocol, which is widely used for field bus communications via Ethernet. An advantage of using EtherNet/IP is that it enables cost-effective reliable communication despite the use of TCP/IP. It is possible to improve the reliability of the interlock output even when using conventional TCP/IP-based network.
	Slides TUBO04 [6.339 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-TUBO04
About •	Received ※ 28 December 2022 — Revised ※ 24 January 2023 — Accepted ※ 09 February 2023 — Issue date ※ 12 May 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Other Keywords

Page

MOPO005

Impedance Characteristic Analysis and Matching Network Design for a 100 mA H⁻ Ion Source

plasma, ion-source, impedance, ISOL

58

A.X. Ding, H.R. Cai, X.L. Jia, P.Z. Li, Z.J. Nong, G.F. Pan, J.F. Wang, H. Zhang, T.J. Zhang, X. Zheng
CIAE, Beijing, People’s Republic of China

China Institute of Atomic Energy (CIAE) has developed a series of multi-cusp H⁻ ion sources (IS) with DC beam intensity ranging from 3 to 18 mA for high intensity proton cyclotron uses such as cyclotron PET application, neutron source and boron neutron capture therapy (BNCT) facilities. Based on the previous experiences, a new project of radio frequency (RF) antenna driving ion source has been launched for pulse accelerator research. This new ion source is expected to provide over 100 mA peak intensity H⁻ beams of 60 keV and a longer maintenance interval than conventional filament-driving ion sources above. Impedance matching is indispensable for efficient RF power coupling in the whole working process of the ion source for high-intensity H⁻ beam extraction. In this paper, impedance characteristic of the IS antenna with various plasma loading is analyzed. Eight typical matching topologies are discussed on their electrical requirements. A type-L and a type-γ network are finally selected for the 2 MHz and 13.56 MHz chains respectively. This design may provide a better compromise between the matching performance and the cost of implementation for a wide dynamic loading range. Design of the network is evaluated on the power delivering efficiency in each of the two RF chains and isolation between one and the other. The IS structure and near-future work plan are also presented.

Poster MOPO005 [1.228 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-MOPO005

About •

Received ※ 24 December 2022 — Revised ※ 11 January 2023 — Accepted ※ 01 February 2023 — Issue date ※ 25 April 2023

Cite •

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

TUBO04

Evaluation of PLC-Based EtherNet/IP Communication for Upgrade of Electromagnet Power Supply Control at RIBF

controls, Ethernet, EPICS, power-supply

134

A. Uchiyama, N. Fukunishi, M. Komiyama, K. Kumagai
RIKEN Nishina Center, Wako, Japan

In the Radioactive Isotope Beam Factory (RIBF), a front-end controller consisting of a computer automated measurement and control (CAMAC)-based system and I/O devices are utilized for the power supplies of many electromagnets upstream from the RIKEN RING Cyclotron. The CPU installed in the system is an x86-based CAMAC crate controller known as "CC/NET". An experimental physics and industrial control system (EPICS) input/output controller (IOC) running embedded Linux is used to remotely control the electromagnet power sup-plies. However, these CAMAC-based systems are outdated and require replacement. The FA-M3 programmable logic controller (PLC) is an alternative candidate device that can be incorporated into the magnet power supply. However, a high-reliability network between the EPICS IOC and the device is required compared to a conventional socket connection via Ethernet. Therefore, we evaluated a system that uses EtherNet/IP to communicate between these devices and the EPICS IOC. The Ether-Net/IP system is based on the TCP/IP protocol, which is widely used for field bus communications via Ethernet. An advantage of using EtherNet/IP is that it enables cost-effective reliable communication despite the use of TCP/IP. It is possible to improve the reliability of the interlock output even when using conventional TCP/IP-based network.

Slides TUBO04 [6.339 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-CYCLOTRONS2022-TUBO04

About •

Received ※ 28 December 2022 — Revised ※ 24 January 2023 — Accepted ※ 09 February 2023 — Issue date ※ 12 May 2023

Cite •

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