NDLI: Assessment of Precise Time Protocol in a Prototype System for the ITER Neutral Beam Test Facility

Content Provider	IEEE Xplore Digital Library
Author	Soppelsa, A. Luchetta, A. Manduchi, G.
Copyright Year	1963
Abstract	Data acquisition and real-time control in nuclear fusion science are usually demanding with respect to the number of involved components, the amount of handled data, and the accuracy required in time reconstruction. The latter aspect becomes critical in new and future experiments that will be running for hours. In these conditions, the mechanisms used to generate and distribute time information, to keep synchronization in devices such as acquisition boards and processing nodes, and to label with a timestamp the acquired samples play an important role. The IEEE1588 Precise Time Protocol (PTP) is a standard for clock synchronization that can be implemented over an Ethernet network. The technology is being considered for the implementation of the timing system of the ITER Neutral Beam Test Facility to be built in Padova, Italy. A PTP network has been set up using commercial off-the-shelf PTP electronic components, PTP and non-PTP switches, with the purpose of assessing the synchronism in conditions similar to those expected in real application. The capabilities of the PTP standard and of PTP hardware have been assessed with different measurement methodologies. Data have been acquired and analyzed using internal capabilities of the PTP hardware, a histogram-enabled digital oscilloscope, and a couple of digital acquisition boards. In particular, the last measurement method is based on data acquisition hardware that is commonly used in fusion experiments. The different measurements of the synchronization performance are in good agreement. These measurements allow assessing the accuracy in time reconstruction and in particular its dependency on the network switches. Based on the results obtained, the tested PTP implementation can be considered a candidate for time reconstruction of signals with analog bandwidth up to 33 kHz.
Sponsorship	IEEE Nuclear and Plasma Sciences Society Computer Applications in Nuclear and Plasma Sciences (CANPS) Lawrence Berkeley Lab. Lawrence Livermore Nat. Lab. APS College of William and Mary Continuous Electron Beam Accelerator Facility NASA Defence Nuclear Agency Sandia National Laboratories Jet Propulsion Laboratory Brookhaven Nat. Lab. Lawrence Livermore Nat. Lab IEEE/NPPS Radiat. Effects Committee Defence Nuclear Agency/DoD Sandia National Laboratories/DOE Jet Propulsion Laboratory/NASA Phillips Lab./DoD
Starting Page	503
Ending Page	509
Page Count	7
File Size	453981
File Format	PDF
ISSN	00189499
Volume Number	57
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols Prototypes Test facilities Synchronization Hardware Data acquisition Switches Particle measurements Fusion reactors Fusion power generation network Clock synchronization experimental performance assessment IEEE1588 protocol
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Electrical and Electronic Engineering Nuclear Energy and Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Prototyping Control and Data Acquisition for the ITER Neutral Beam Test Facility

Data Acquisition in the ITER Ion Source Experiment

Engineering Design of ITER Prototype Fast Plant System Controller

Study of RF Stray Currents in ITER Neutral Beam Test Facilities

Fmit-The Fusion Materials Irradiation Test Facility

Radiation Environment in the ITER Neutral Beam Injector Prototype

Testing of ITER prototype cable-in-conduit conductors in the FENIX facility

Toward a Large RF Ion Source for the ITER Neutral Beam Injector: Overview of the ELISE Test Facility and First Results

A Pulsed Ferrite Inflector for the Emittance Measuring Device of the Chalk River High Current Test Facility

Assessment of Precise Time Protocol in a Prototype System for the ITER Neutral Beam Test Facility

Similar Documents

Prototyping Control and Data Acquisition for the ITER Neutral Beam Test Facility

Data Acquisition in the ITER Ion Source Experiment

Engineering Design of ITER Prototype Fast Plant System Controller

Study of RF Stray Currents in ITER Neutral Beam Test Facilities

Fmit-The Fusion Materials Irradiation Test Facility

Radiation Environment in the ITER Neutral Beam Injector Prototype

Testing of ITER prototype cable-in-conduit conductors in the FENIX facility

Toward a Large RF Ion Source for the ITER Neutral Beam Injector: Overview of the ELISE Test Facility and First Results

A Pulsed Ferrite Inflector for the Emittance Measuring Device of the Chalk River High Current Test Facility

Assessment of Precise Time Protocol in a Prototype System for the ITER Neutral Beam Test Facility