Visible Diagnostics Calibration Workshop

27 Nov 2023, 10:00 → 29 Nov 2023, 14:00 Europe/Paris

ITER Council Room (ITER Headquarters)

The main objective of the workshop is to facilitate the exchange of valuable information between experts and design teams in the field of visible diagnostics calibration and alignment. This collaborative effort is set to play a vital role in the future operation of these systems.
 

The workshop agenda includes the following main areas of discussion:

• Components calibration and internal alignment at manufacturing;
• Sub-assembly calibration and alignment at integration in Ports, ISS, PCSS, optical tables, etc;
• Calibration and alignment during on-site commissioning without plasma;
• Calibration and alignment during Operations (incl. inter-shots or with standard discharges);
• In-vessel calibration with the Agile Robot Transporter (ART).
• Diagnostics commissioning procedures and operational modes.

 

The non-exhaustive list of involved diagnostics is:

• Spectroscopic systems (E2, E4, E6);
• Neutral Beam - Plasma interaction spectroscopic systems (E1, EB, EC, EF);
• Thomson Scat. systems (C1, C2, C4);
• Visible viewing systems (G1, GA, GE, GL);
• Inter-pulse operating systems (EA, G8, GC).

 

The workshop will take place in person (favored) but can also be attended remotely (Teams link given below).

Detailed Agenda - v3.2.docx

Invitation letter request-Calibration.docx

Monday, 27 November

1 Welcome

Speaker: Maarten De Bock

2 Factory Acceptance Test - Internal Calibration and Alignment

Objectives: FAT alignment concepts and required tooling, needs from other PBSes, expected difficulties and risk, how to store and use the calibration data records, etc.

Speaker: Eiichi Yatsuka

3 Discussions/exchanges all participants on FAT

Objectives: clarify the installation sequence and associated tolerances affecting the diagnostic tenant and their alignment strategy.

11:10 Coffee Break

4 Tolerance Chains and alignment strategy

Objectives: clarify the installation sequence and associated tolerances affecting the diagnostic tenant and their alignment strategy.

Speaker: Fabien Josseaume

5 On-site alignment during integration at Port-Integrator Facility or in the Port Cell

Objectives: how to align optical modules in the PIF, tooling, alignment in the Port Cell, alignment/installation sequence and required inputs from the Port-Integrators, etc.

Speaker: Charles Barnes

6 Discussions/exchanges all participants on tolerances and on-site alignment

7 Recap Day 1

Tuesday, 28 November

8 Calibration during integration and on-site commissioning

Objectives: how to calibrate sub-assemblies during their integration (PIF, PPTF, Port-Cell), Front-to-End calibration (nice-to-have or needed?), tooling (including in the Port-Cell), etc.

Speaker: Maarten De Bock

9 Discussions/exchanges all participants on topic

Discussions/exchanges all participants on topic

11:10 Coffee Break

Calibration and alignment during Operations: Back-reflection transmission calibration

Calibration during active phase of the machine, large focus on back-reflection transmission calibration, back-end instrument calibration, etc.

Convener: Slim Hamdani

Calibration and alignment during Operations: (High-accuracy) wavelength calibration

Calibration during active phase of the machine, large focus on back-reflection transmission calibration, back-end instrument calibration, etc.

Convener: Stanislav Serov

Calibration and alignment during Operations: Back-lighting alignment with Visible cameras

Calibration during active phase of the machine, large focus on back-reflection transmission calibration, back-end instrument calibration, etc.

Convener: Jill Foley

10 Discussions/exchanges all participants on Calibration topic

11 Recap Day 2

Wednesday, 29 November

12 Active Alignment during discharges

Objectives: Discussion on active alignment during pulses.

Speaker: Tomohiko Ushiki

13 Raman Scattering for Thomson Scattering diagnostics

Discussion on Raman Scattering calibration by the TS expert community.

Speaker: Rory Scannell

14 In-vessel Calibration with periodic sources

Objectives: Discuss potential solutions for in-vessel calibration with the use of sources that are introduced in the machine when the VV is vented. Solutions prior AFP (neutron scaffolding) and post AFP (Agile Robot Transporter) will be discussed.

Speaker: Stanislav Serov

15 Discussions/exchanges all participants

11:00 Coffee Break

16 Reference Plasma for Diagnostics Calibration

Objectives: Discussion on the possibility to have referenced plasmas for diagnostic calibration.

Speaker: Peter De Vries

17 Beam into Gas / Beam into Ohmic discharges

Objectives: Discussion on the possibility to calibrate with beam-into-gas/ohmic discharges in ITER.

Speaker: Fred Levinton

18 Close-out discussion and Day 3 Recap