{
  "annotation_id": "3e9857de-3c3b-4cd5-bca8-47bd7d1c60f8",
  "date_created": "2026-02-17T05:53:24.266000Z",
  "date_modified": "2026-02-17T05:53:24.266000Z",
  "file_hash": "e445f45adb88e7ee1cff69b66205a44270645a929964a378c6b39dabd7c6491d",
  "private": false,
  "record": {
    "abstract": "In this work we present a study on the viability and practicality of installing a Doppler reflectometer (DR) system in the JT-60SA advanced tokamak. First, we discuss its scientific scope in the context of the JT-60SA research plan. We identify a number of fields in which a DR would be very relevant for the accomplishment of said plan and outline a scientific program for the diagnostic. Then, starting from a number of design hypothesis, we use a ray tracing code to carry out a feasibility study for a number of relevant scenarios and identify a geometric solution for the installation of a DR such that both core and edge can be probed in the prescribed wave number range, thus achieving the proposed scientific objectives. Finally, we perform a preliminary discussion on the different possibilities for a conceptual design (including a minimum viable system and a baseline system) and their requirements in terms of components and space. We conclude that a viable conceptual design could be carried out using a small fraction of a horizontal port, leaving room for additional diagnostic systems.",
    "arxiv_id": "2601.09906",
    "authors": [
      "D. Carralero",
      "T. Happel",
      "T. Estrada",
      "T. Tokuzawa",
      "J. Mart\u00ednez",
      "E. de la Luna",
      "A. Cappa",
      "J. Garc\u00eda"
    ],
    "categories": [
      "physics.plasm-ph"
    ],
    "doi": "10.1016/j.fusengdes.2021.112803.",
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "A feasibility study for a Doppler Reflectometer System in the JT-60SA tokamak",
    "url": "https://arxiv.org/abs/2601.09906",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4e2d61b9-9ad0-4aa6-a763-0346894bfd1a",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}