Search Results - "Mertens, Philippe"
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On the use of rhodium mirrors for optical diagnostics in ITER
Published in Fusion engineering and design (01-09-2019)“…The first mirrors of optical diagnostics in ITER are exposed to high radiation and fluxes of particles which escape the plasma, in the order of 1020 m−2s−1. At…”
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Emission of Fast Hydrogen Atoms in a Low Density Gas Discharge—The Most “Natural” Mirror Laboratory
Published in Atoms (01-09-2020)“…In this work, we present a new application for the line shapes of emission induced by reflected hydrogen atoms. Optical properties of the solids in contact…”
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In situ measurement of the spectral reflectance of mirror-like metallic surfaces during plasma exposition
Published in Nuclear materials and energy (01-12-2018)“…•Advancement of DSRM (Doppler-shifted Reflectance Measurement) diagnostic to 486 nm•Analysis of reflected light polarization at metallic mirrors during plasma…”
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Combined impact of transient heat loads and steady-state plasma exposure on tungsten
Published in Fusion engineering and design (01-10-2015)“…•W-samples under combined loading conditions show a lower damage threshold.•The pre-loaded W-samples show a lower damage threshold due to the D-…”
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The Core-Plasma CXRS Diagnostic for ITER: An Introduction to the Current Design
Published in Journal of fusion energy (01-08-2019)“…The development and design of the CXRS diagnostic for the core plasma of ITER is used as a pretext to elaborate on several of the main challenges of optical…”
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TFC-PREDIM: A FE dimensioning procedure for the TF coil system of a DEMO tokamak reactor
Published in Fusion engineering and design (01-10-2020)“…•Proper dimensioning of the TF coil system is essential to ensure the structural integrity and effective space usage.•An FE procedure for the assessment and…”
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Detailed structural analysis of a graded TF coil winding pack for EU DEMO
Published in Fusion engineering and design (01-09-2019)“…The toroidal field (TF) coil system is one of the most mechanically stressed systems in a tokamak. Structural integrity of the system must be maintained on the…”
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Engineering Methodology to Provide Integrity of the ITER Port Plug Onboard Components Dynamically Responding to Plasma Transients Combined With Seismic Events
Published in IEEE transactions on plasma science (01-02-2019)“…Forschungszentrum Jülich and partners are developing the ITER core charge exchange spectroscopy (cCXRS) hosted by upper port plug#3 (UPP). The system should…”
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Mechanical pre-dimensioning and pre-optimization of the tokamaks’ toroidal coils featuring the winding pack layout
Published in Fusion engineering and design (01-11-2017)“…•Structural integrity of superconducting magnets that are key elements of a fusion reactor is to be ensured.•A calculation procedure that estimates mechanical…”
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Specific design and structural issues of single crystalline first mirrors for diagnostics
Published in Fusion engineering and design (01-11-2017)“…•The key issues of first mirrors made from single crystalline molybdenum and rhodium parts are highlighted.•The passively and actively cooled mirrors using…”
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Advanced design of the ITER core CXRS shutter and integration into the diagnostic shield module of the Upper Port Plug No. 3
Published in Fusion engineering and design (01-07-2021)“…For the ITER core CXRS diagnostic, a shutter is mandatory to protect the first mirror when no measurement takes place. With the continuing design development…”
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The s → dγ decay in and beyond the Standard Model
Published in The journal of high energy physics (01-08-2011)“…The New Physics sensitivity of the s → dγ transition and its accessibility through hadronic processes are thoroughly investigated. Firstly, the Standard…”
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Analysis and removal of ITER relevant materials and deposits by laser ablation
Published in Journal of nuclear materials (01-12-2014)“…This paper presents systemic laboratory experimental analysis of the behavior of the ITER relevant materials, graphite, tungsten, aluminum (as a substitution…”
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Experimental and numerical studies of the shutter dynamics for the ITER core CXRS diagnostic
Published in Fusion engineering and design (01-11-2017)“…•Experimental analysis of the dynamic shutter behaviour for different setup conditions.•Optimisation of the mechanism to reach almost zero impact kinetic…”
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Weakly-induced strong CP violation
Published in Physics letters. B (19-09-2012)“…Weak interaction contributions to the strong θ parameter are revisited in the frame of a large-Nc Chiral Perturbation Theory. Focusing on the hadronic η(′)→ππ…”
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JUVIL: A new innovative software framework for data analysis of JET imaging systems intended for the study of plasma physics and machine operational safety
Published in Fusion engineering and design (01-11-2017)“…•Powerful, user-friendly and robust framework for fast data visualization and advanced analysis of all types of imaging data.•Modular object-oriented…”
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Dynamic performance of frictionless fast shutters for ITER: Numerical and analytical sensitivity study for the development of a test program
Published in Fusion engineering and design (01-10-2015)“…To prolong a lifetime of the ITER first diagnostic mirrors some protective shutters can be engaged. A concept of an elastic shutter that operates frictionless…”
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Aim and features of the simplified parametric mock-up of a fast shutter developed for ITER optical diagnostics
Published in Fusion engineering and design (01-10-2015)“…•Full functional mock-up model with a reduced geometry complexity.•Mass–stiffness-equivalent model for an identical mechanical behaviour of the…”
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Major aspects of the design of a first mirror for the ITER core CXRS diagnostics
Published in Fusion engineering and design (01-10-2015)“…•Availability, technological issues, and changes in the ScMo structure to be solved in future.•Developed passively cooled mirror is a workable, flexible,…”
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Thermal analysis for optimization of the optical duct of the ITER core CXRS diagnostics
Published in Fusion engineering and design (01-10-2015)“…The First Mirror (M1), as part of the ITER core CXRS diagnostics, is responsible for acquisition and transportation of the optical signal from the plasma to…”
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