Journal Article FZJ-2019-04308

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Diagnostics for plasma control – From ITER to DEMO

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2019
Elsevier New York, NY [u.a.]

Fusion engineering and design 146(Part A), 465 - 472 () [10.1016/j.fusengdes.2018.12.092]

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Abstract: The plasma diagnostic and control (D&C) system for a future tokamak demonstration fusion reactor (DEMO) will have to provide reliable operation near technical and physics limits, while its front-end components will be subject to strong adverse effects within the nuclear and high temperature plasma environment. The ongoing developments for the ITER D&C system represent an important starting point for progressing towards DEMO. Requirements for detailed exploration of physics are however pushing the ITER diagnostic design towards using sophisticated methods and aiming for large spatial coverage and high signal intensities, so that many front-end components have to be mounted in forward positions. In many cases this results in a rapid aging of diagnostic components, so that additional measures like protection shutters, plasma based mirror cleaning or modular approaches for frequent maintenance and exchange are being developed.Under the even stronger fluences of plasma particles, neutron/gamma and radiation loads on DEMO, durable and reliable signals for plasma control can only be obtained by selecting diagnostic methods with regard to their robustness, and retracting vulnerable front-end components into protected locations. Based on this approach, an initial DEMO D&C concept is presented, which covers all major control issues by signals to be derived from at least two different diagnostic methods (risk mitigation).

Classification:

Contributing Institute(s):
  1. Plasmaphysik (IEK-4)
  2. Innovation für Klimaschutz und Klimawandelanpassung (PTJ-IKK)
Research Program(s):
  1. 174 - Plasma-Wall-Interaction (POF3-174) (POF3-174)

Appears in the scientific report 2019
Database coverage:
Creative Commons Attribution CC BY 4.0 ; OpenAccess ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Ebsco Academic Search ; IF < 5 ; JCR ; NationallizenzNationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection
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The record appears in these collections:
Dokumenttypen > Aufsätze > Zeitschriftenaufsätze
Institutssammlungen > PTJ > PTJ-IKK
Institutssammlungen > IFN > IFN-1
Workflowsammlungen > Öffentliche Einträge
IEK > IEK-4
Publikationsdatenbank
Open Access

 Datensatz erzeugt am 2019-08-20, letzte Änderung am 2024-07-11


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