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Simulation roadmap outlines steps to validate hybrid compact tokamak concept, suggesting potential impacts on funding initiatives.
Companion document to the main HCT-LH v8.5 preprint. This document presents a clear, progressive, and realistic simulation roadmap structured in three Go/No-Go blocks to validate the HCT-LH concept (Hybrid Compact Tokamak with Hybrid Lasers): Block 0 (Theoretical scoping & linear MHD): Low-cost / near-zero cost (ideal for an M2 internship or early post-doc), 3–4 months. Focus: first estimate of the critical parameter δB/B of the 16-flux differential injection. Block 1 (Core physics validation): JOREK non-linear (δB/B), Super-X divertor scaling (SOLPS-ITER / NIMROD), ECRH absorption. Budget 7–12 M€. Block 2 (Power plant viability): Tritium breeding ratio (TBR), FLiBe + sCO₂ loop, integrated Q — only after successful Block 1. Guiding principle: Start with the cheapest test that can most impact the decision (δB/B first). Designed to support funding applications and collaboration proposals with laboratories (CEA-IRFM, IPP Garching, IPR, etc.). Fully open to serious contributions, especially on Block 0. Main preprint : HCT-LH v9.5 — Hybrid Compact Tokamak with Hybrid Lasers Link: https://zenodo.org/records/20529026 Author: Jean-François Faye TRL 1–2 | Conceptual | Open to collaboration Document compagnon du preprint principal HCT-LH v8.5. Ce document présente une feuille de route de simulations claire, progressive et réaliste, structurée en trois blocs à jalons Go/No-Go pour valider le concept HCT-LH (Hybrid Compact Tokamak with Hybrid Lasers) : Bloc 0 (Cadrage théorique & MHD linéaire) : Coût très faible / quasi nul (idéal pour un stage M2 ou début de post-doc), 3–4 mois. Objectif : première estimation du paramètre critique **δB/B** de l’injection différentielle 16-flux. Bloc 1 (Validation du concept physique) : JOREK non-linéaire (δB/B), scaling du divertor Super-X (SOLPS-ITER / NIMROD), absorption ECRH. Budget 7–12 M€. Bloc 2 (Viabilité en centrale) : TBR, boucle FLiBe + sCO₂, Q auto-cohérent — uniquement après succès du Bloc 1. Principe directeur : Commencer par le test le moins coûteux qui peut le plus changer la décision (δB/B en priorité). Conçu pour accompagner les demandes de financement et les propositions de collaboration avec les laboratoires (CEA-IRFM, IPP Garching, IPR, etc.). Ouvert à toute contribution sérieuse, notamment sur le Bloc 0. Preprint principal: HCT-LH v8.5 — Hybrid Compact Tokamak with Hybrid Lasers Lien : https://zenodo.
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Jean-François Faye (2026) studied this question.
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