Replication Data for: REBCO Conductor and Stabilizer Materials Under Neutron Irradiation: The Un-Doped-Tape Rule, Graphene-Reinforced Stabilizers and V2O3 Self-Protection for a Spherical-Tokamak Breeder
Year: 2026
Type: dataset
Abstract: Replication data for the paper REBCO Conductor and Stabilizer Materials Under Neutron Irradiation: The Un-Doped-Tape Rule, Graphene-Reinforced Stabilizers and V2O3 Self-Protection for a Spherical-Tokamak Breeder (Kronos Fusion Energy 2026 Publication Series, paper 2.17), published at doi:10.5281/zenodo.22645779. Abstract of the paper. The high-field REBCO magnet of a compact spherical-tokamak breeder is usually de-risked on field and stress; its survival in a neutron environment is a separate materials question, and the answer changes the conductor specification. The Kronos Hyperion centrepost sees a peak field of 16.84 T and a fast-neutron fluence budget capped at a frozen 3.9×10^22 n m^-2, while its physically distinct D–^3He tandem-mirror burner plug operates at 26.49 T; both are wound from rare-earth barium copper oxide (REBCO) coated conductor. We formalise and quantify four coupled conductor-materials results, each a frozen anchor in the Kronos physics de-risking register. First, a fast-neutron-lifetime selection rule: for fusion fluence the plain, un-doped tape outlasts the artificial-pinning-centre (APC) tape, whose engineered defects are optimised for in-field critical current, because irradiation supplies its own pinning and the doped tape reaches its critical-current break-even knee sooner — an inversion of the room-temperature selection. A two-population pinning model with a displacement-damage sink reproduces break-even fluences of ^_ un=5.64×10^22 n m^-2 against ^_ APC=3.82×10^22 n m^-2 (×1.48), and a 4 000-sample Monte-Carlo confirms the ordering holds with probability 1.00. Displacement-cascade molecular dynamics and DFT+U locate the limiter on the oxygen sublattice, which absorbs ≈78% of the displacements. What this dataset contains data/key_values.csv and data/anchors.json: the frozen design-point values quoted in the paper (symbol, value, unit, provenance), in machine-readable form. data/verification.csv: the validator gates the paper cites, each with its verdict and a link to a live recompute page. figures/: the figures from the paper, as vector PDF, with an inventory. rebco-conductor-materials-under-irradiation.data-methods.pdf: methods, the computational codes used, and the full value table. data/data_dictionary.md: column definitions. Every value is a frozen design-point number that is independently re-run and recorded in the Kronos Physics De-Risking Register (doi:10.5281/zenodo.22645689). The paper itself is not duplicated here; read it at the DOI above.
Source: Harvard Dataverse
DOI: 10.7910/dvn/tv47wp
Authors: Ford, P I, Kulcinski, G L
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7214599515