ICALEPCS2023 - List of Authors (Trevisan, L.)

Paper	Title	Page
TUPDP043	Final Design of Control and Data Acquisition System for the ITER Heating Neutral Beam Injector Test Bed	612
	L. Trevisan, A.F. Luchetta, G. Manduchi, G. Martini, A. Rigoni, C. Taliercio Consorzio RFX, Padova, Italy N. Cruz IPFN, Lisbon, Portugal C. Labate, F. Paolucci F4E, Barcelona, Spain
	Funding: This work has been carried out within the framework of the EUROfusion Consortium funded by the European Union via Euratom Research and Training Programme (Grant Agreement No 101052200 - EUROfusion) Tokamaks use heating neutral beam (HNB) injectors to reach fusion conditions and drive the plasma current. ITER, the large international tokamak, will have three high-energy, high-power (1MeV, 16.5MW) HNBs. MITICA, the ITER HNB prototype, is being built at the ITER Neutral Beam Test Facility, Italy, to develop and test the ITER HNB, whose requirements are far beyond the current HNB technology. MITICA operates in a pulsed way with pulse duration up to 3600s and 25% duty cycle. It requires a complex control and data acquisition system (CODAS) to provide supervisory and plant control, monitoring, fast real-time control, data acquisition and archiving, data access, and operator interface. The control infrastructure consists of two parts: central and plant system CODAS. The former provides high-level resources such as servers and a central archive for experimental data. The latter manages the MITICA plant units, i.e., components that generally execute a specific function, such as power supply, vacuum pumping, or scientific parameter measurements. CODAS integrates various technologies to implement the required functions and meet the associated requirements. Our paper presents the CODAS requirement and architecture based on the experience gained with SPIDER, the ITER full-size beam source in operation since 2018. It focuses on the most challenging topics, such as synchronization, fast real-time control, software development for long-lasting experiments, system commissioning, and integration.
	Poster TUPDP043 [0.621 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-TUPDP043
About •	Received ※ 05 October 2023 — Accepted ※ 10 December 2023 — Issued ※ 19 December 2023
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THSDSC02	A High Resolution Multichannel Acquisition System for Magnetic Measurements of Fusion Experiments
	R. Cavazzana, M. Brombin, G. Manduchi, A. Rigoni, L. Trevisan Consorzio RFX, Padova, Italy F.M. Milan ELAD, Sarone di Caneva (PN), Italy
	Magnetic fusion experiments rely mainly on coil loops as the primary type of magnetic sensors, offering precision, reliability, and robustness. However, to analyze the magnetic field, the sensors signals need to be time-integrated. Usually, analog integrators were employed due to their wide dynamic range, but they present complexity challenges. The need for a separate channel for the derivative (dB/dt) signals is also required to measure fast events, plasma instabilities, and magnetic turbulences. In this work, we propose a novel system design based on high-resolution analog-to-digital converters (ADCs) that eliminates the need for analog integrators and the second acquisition channel, simplifying the overall system. The system uses 1 MS/s, 20-bit ADCs, electrically comparable to good analog integrators. To ensure accurate measurements, each acquisition channel is electrically isolated, effectively eliminating the ground loops generated by the experiment’s magnetic fields. The system architecture is implemented on 6U boards, where each board serves as an autonomous system housing 12 input channels and its own SOC-FPGA, with a total of 144 channels on a 6U sub-rack. Each board simultaneously provides three essential functionalities: a timing synchronization decoder, transient recording of full-speed ADC data, and continuous Ethernet UDP transmission of subsampled signals to the real-time control system. This comprehensive approach allows for efficient data acquisition, analysis, and integration into the experiment’s control framework.
Cite •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Final Design of Control and Data Acquisition System for the ITER Heating Neutral Beam Injector Test Bed

612

L. Trevisan, A.F. Luchetta, G. Manduchi, G. Martini, A. Rigoni, C. Taliercio
Consorzio RFX, Padova, Italy
N. Cruz
IPFN, Lisbon, Portugal
C. Labate, F. Paolucci
F4E, Barcelona, Spain

Funding: This work has been carried out within the framework of the EUROfusion Consortium funded by the European Union via Euratom Research and Training Programme (Grant Agreement No 101052200 - EUROfusion)
Tokamaks use heating neutral beam (HNB) injectors to reach fusion conditions and drive the plasma current. ITER, the large international tokamak, will have three high-energy, high-power (1MeV, 16.5MW) HNBs. MITICA, the ITER HNB prototype, is being built at the ITER Neutral Beam Test Facility, Italy, to develop and test the ITER HNB, whose requirements are far beyond the current HNB technology. MITICA operates in a pulsed way with pulse duration up to 3600s and 25% duty cycle. It requires a complex control and data acquisition system (CODAS) to provide supervisory and plant control, monitoring, fast real-time control, data acquisition and archiving, data access, and operator interface. The control infrastructure consists of two parts: central and plant system CODAS. The former provides high-level resources such as servers and a central archive for experimental data. The latter manages the MITICA plant units, i.e., components that generally execute a specific function, such as power supply, vacuum pumping, or scientific parameter measurements. CODAS integrates various technologies to implement the required functions and meet the associated requirements. Our paper presents the CODAS requirement and architecture based on the experience gained with SPIDER, the ITER full-size beam source in operation since 2018. It focuses on the most challenging topics, such as synchronization, fast real-time control, software development for long-lasting experiments, system commissioning, and integration.

Poster TUPDP043 [0.621 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-ICALEPCS2023-TUPDP043

About •

Received ※ 05 October 2023 — Accepted ※ 10 December 2023 — Issued ※ 19 December 2023

Cite •

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

THSDSC02

A High Resolution Multichannel Acquisition System for Magnetic Measurements of Fusion Experiments

R. Cavazzana, M. Brombin, G. Manduchi, A. Rigoni, L. Trevisan
Consorzio RFX, Padova, Italy
F.M. Milan
ELAD, Sarone di Caneva (PN), Italy

Magnetic fusion experiments rely mainly on coil loops as the primary type of magnetic sensors, offering precision, reliability, and robustness. However, to analyze the magnetic field, the sensors signals need to be time-integrated. Usually, analog integrators were employed due to their wide dynamic range, but they present complexity challenges. The need for a separate channel for the derivative (dB/dt) signals is also required to measure fast events, plasma instabilities, and magnetic turbulences. In this work, we propose a novel system design based on high-resolution analog-to-digital converters (ADCs) that eliminates the need for analog integrators and the second acquisition channel, simplifying the overall system. The system uses 1 MS/s, 20-bit ADCs, electrically comparable to good analog integrators. To ensure accurate measurements, each acquisition channel is electrically isolated, effectively eliminating the ground loops generated by the experiment’s magnetic fields. The system architecture is implemented on 6U boards, where each board serves as an autonomous system housing 12 input channels and its own SOC-FPGA, with a total of 144 channels on a 6U sub-rack. Each board simultaneously provides three essential functionalities: a timing synchronization decoder, transient recording of full-speed ADC data, and continuous Ethernet UDP transmission of subsampled signals to the real-time control system. This comprehensive approach allows for efficient data acquisition, analysis, and integration into the experiment’s control framework.

Cite •

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