Introduction to US ITER activities

related to Diagnostics

High Temperature Plasma DiagnosticsSan Diego, CAApril 22, 2004

Ned Sauthoff ITER Planning OfficerPresented by Rejean Boivin

ITER is an international collaboration to build the first fusion science experiment capable of producing a self-sustaining fusion reaction, called a ‘burning plasma.’

It is the next essential and critical step on the path toward demonstrating the scientific and technological feasibility of fusion energy.

DOE/SC Facilities Plan: ITER #1

“

”

US motivations on ITER diagnostics

• The primary US motivation for ITER participation is research on burning plasmas– Snowmass 2002– FESAC Burning Plasma Strategy– National Academies Burning Plasma Strategy Report

“Burning Plasma: Bringing a Start to Earth”

• Diagnostics are a key enabler of research in burning plasmas

• Therefore, US participation in ITER diagnostics is important

In mid-2003, NSSG groups focused on ITER arrangements

• Management Structure– Construction and Operations Phases– Research Participation in ITER during the Operation Phase (JA input)

• Risk

• Procurement Systems/Methods

• Procurement Allocations

• Staffing

• Resource Management Regulations

• Intellectual Property

• Decommissioning

The International Team Leaders and Participant Team

Leaders developed tentative allocations

of ITER procurement packages, and

presented them to the Negotiators in Fall

2003

For community input, the Burning Plasma Program Advisory Committee was asked for guidelines

• Membership of the BPPAC– Stewart Prager (U. Wis.), chair– Mohamed Abdou (UCLA)– Réjean Boivin (GA)– Harold Forsen– Jeffrey Freidberg (MIT)– Richard Hawryluk (PPPL)– E. Bickford Hooper (LLNL)– Stan Milora (ORNL)– Gerald Navratil (Columbia)– Tony Taylor (GA)– George Tynan (UCSD)– Michael Ulrickson (Sandia)– James Van Dam (UTex)

BPPAC criteria, metrics and priorities for US in-kind contributions

1. US research positioning (High)– Metric: Extent to which activity positions the US for key

science/technology roles in ITER2. ITER-value per dollar (High)

– Metric: ITER value/(US cost of full scope of ITER-specific R&D + design + fab + contingency)

3. Relative value or strength of US contribution to ITER (High/Medium)– Metric: High relative strength to meet a critical need of the ITER project

4. Contributions to US fusion research program (Medium)– Metric: Enhancement of US capability for activity both in ITER and

outside ITER5. Enhancement of fusion-relevant capability of US industry (Medium/Low)

– Metric: Extent activity increases industrial capability in fusion areas6. Development of US fusion workforce (Low)

– Metric: Extent to which activity builds a suitable US fusion science and technology work force.

Process for tentative ITER Procurement Allocations overall

• The ITER International Team Leader requested priorities and preferences from the Participant Teams

• Examination of the initial input raised concerns about excessive sharing of the ~85 individual packages

• The International Team Leader proposed a revised packaging of the in-kind elements, focusing on project success; this re-packaging was accepted

• The International Team worked closely with individual Participant Team Leaders to iterate draft allocations of the packages

• The IT Leaders and the Participant Team Leaders met to refine the allocations, leading to a draft tentative allocation which was presented to the Negotiators and accepted as a good basis for proceeding

• Development of a draft detailed diagnostic allocation within the overall allocation was assigned to a new Diagnostic Working Group

Tentative US in-kind contributions by Value US Diagnostics (15%

of the ITER Diagnostics) are 7% of the US total in-kind contribution

Overview of tentative US in-kind contributions

System Description of US portionMagnets 4 of 7 Central Solenoid ModulesBlanket/Shield Module 18 (baffle)Vacuum-pumping/ fueling

Roughing pumps, standard components, pellet injector

Tritium Tokamak exhaust processing systemCooling water Cooling for divertor, vacuum vessel, …Power supplies Steady-state power suppliesIon Cyclotron system

44% of antenna + all transmission/RF-sources/power supplies

Electron cyclotron system

Start-up gyrotrons, all transmission lines and power supplies

Diagnostics Diagnostics Working Group recommended

Major Components of ITER

Toroidal Field CoilNb3Sn, 18 coils

Poloidal Field CoilNb-Ti, 6 coils

Central SolenoidNb3Sn, 6 modules

Blanket Module421 modules

Vacuum Vessel9 sectors

Cryostat24 m high x 28 m dia.

Port Plug6 heating3 test blankets2 limitersrem. diagnostics

Divertor54 cassettes