Functional materials for ITER diagnostic systems – Radiation aspects

Casal, N.; Andrew, P.; Barnsley, R.; Bassan, M.; Barbero, José Luís; Bertalot, L.; Bock, Maarten De; Brichard, B.; Giacomin, T.; Juárez, R.; Kočan, M.; Guern, F. Le; Loughlin, M.; Ma, Yuanyuan; Mackel, F.; Meister, H.; Maquet, P.; Martin, Vincent; Reichle, R.; Seyvet, F.; Sirinelli, A.; Shigin, P.; Udintsev, V. S.; Vayakis, G.; Vorpahl, C.; Watts, Cristopher; Walsh, Michael J.

doi:10.1016/j.fusengdes.2017.08.017

Cited by 6 publications

(8 citation statements)

References 11 publications

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“…There are about two hundred different diagnostic systems in ITER located at various locations in the machine, ranging from the FW to the outer areas of the VV. The greatest radiation damage will be induced in the components closest to the plasma, i.e., the FWS and retroreflectors (RR) [ 107 ].…”

Section: Diagnostic Materialsmentioning

confidence: 99%

“…There are two types of effects on their performance: Dynamic radiation effects: Substantially influence the performance of components from the onset of exposure to radiation environments. Long-term radiation effects: Gradually degrade their performance capabilities [ 107 ]. …”

Section: Diagnostic Materialsmentioning

confidence: 99%

“…The sputtering resolution of Be in the range from 1 to 100

m is obtained by special markers (5 to 10), which are placed in various depth ranges from the surface [ 11 , 107 ].…”

Section: Diagnostic Materialsmentioning

confidence: 99%

“…The expected service life of the FWS is expected to be approximately 2 years, while that of the RR will be less. Both elements should be able to withstand a neutron fluence of ∼

n/m 2 , and the neutron doses (∼1 dpa) are not expected to significantly affect the thermal and mechanical properties of the materials used [ 107 ].…”

Section: Diagnostic Materialsmentioning

confidence: 99%

“…The fluence expected for FMs is ∼

n/m 2 over the entire lifetime of ITER with temperatures that range from 50–300 °C, depending on the location. Stainless steel grade 316LN-IG (a modification of grade 316LN with a reduced concentration of activation-susceptible elements (mainly Co, Nb and Ta) [ 112 ] ) is the main structural material [ 107 , 112 , 113 ].…”

Section: Diagnostic Materialsmentioning

confidence: 99%

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Materials to Be Used in Future Magnetic Confinement Fusion Reactors: A Review

Alba¹,

Rodríguez²,

Cerdeira³

2022

Materials

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This paper presents the roadmap of the main materials to be used for ITER and DEMO class reactors as well as an overview of the most relevant innovations that have been made in recent years. The main idea in the EUROfusion development program for the FW (first wall) is the use of low-activation materials. Thus far, several candidates have been proposed: RAFM and ODS steels, SiC/SiC ceramic composites and vanadium alloys. In turn, the most relevant diagnostic systems and PFMs (plasma-facing materials) will be described, all accompanied by the corresponding justification for the selection of the materials as well as their main characteristics. Finally, an outlook will be provided on future material development activities to be carried out during the next phase of the conceptual design for DEMO, which is highly dependent on the success of the IFMIF-DONES facility, whose design, operation and objectives are also described in this paper.

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Section: Diagnostic Materialsmentioning

confidence: 99%

Section: Diagnostic Materialsmentioning

confidence: 99%

“…The sputtering resolution of Be in the range from 1 to 100

m is obtained by special markers (5 to 10), which are placed in various depth ranges from the surface [ 11 , 107 ].…”

Section: Diagnostic Materialsmentioning

confidence: 99%

“…The expected service life of the FWS is expected to be approximately 2 years, while that of the RR will be less. Both elements should be able to withstand a neutron fluence of ∼

n/m 2 , and the neutron doses (∼1 dpa) are not expected to significantly affect the thermal and mechanical properties of the materials used [ 107 ].…”

Section: Diagnostic Materialsmentioning

confidence: 99%

“…The fluence expected for FMs is ∼

Section: Diagnostic Materialsmentioning

confidence: 99%

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