{
  "annotation_id": "75c80b10-7312-48e1-af3d-7f60ddf83ac9",
  "date_created": "2026-03-02T18:00:53.791000Z",
  "date_modified": "2026-03-02T18:00:53.791000Z",
  "file_hash": "2a18ce3c69e00b14615691af8129127e031760ffaa86e5de1906df89772e470b",
  "private": false,
  "record": {
    "abstract": "Radio-frequency discharges are performed in low magnetic fields (0-10 mT)\nusing three types of helicon-wave exciting antennas with the azimuthal mode\nnumber of $|m|$ = 1. The most pronounced peak of plasma density is generated in\nthe case of phased helical antenna at only a few mT, where the helicon wave\nwith $|m| = 1$ is purely excited and propagates. An analysis based on the\ndispersion relation well explains the density-peak phenomenon in terms of the\ncorrespondence between the antenna one-wavelength and the helicon wavelength.\nThe $m=+1$ helicon wave propagates even in high magnetic fields where the\ndensity peaks are not observed, but the $m=-1$ helicon wave disappers. It is\nexpected theoretically that the $m=-1$ helicon wave shows cutoff behavior in a\nlow density region, [M. Kramer, Phys. Plasmas 6, 1052 (1999)], and the cutoff\nof $m=-1$ helicon wave experimentally observed coincides with the calculated\none.",
    "arxiv_id": "physics/0410164",
    "authors": [
      "Genta Sato",
      "Wataru Oohara",
      "Rikizo Hatakeyama"
    ],
    "categories": [
      "physics.plasm-ph"
    ],
    "title": "Plasma production by helicon waves with single mode number in low   magnetic fields",
    "url": "https://arxiv.org/abs/physics/0410164"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c27e5e47-96c8-429c-84cb-8cb29c492bd5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}