{
  "abstract": "The flow of moderately dense (n {\\approx} 10^{11} cm^{-3}) hydrogen plasma with high electron temperature (T_{e} {\\approx} 30 - 35 eV) and plasma potential (V_{p} {\\approx} 100 V), expanding towards an expansion chamber (EC) from an ECR plasma source is investigated using Langmuir probes (LPs) and Ion Energy Analysers (IEAs). The LPs reveal presence of a second ionization zone (SIZ) a few centimetres from the ECR zone, indicating very short ionization mean paths, which are confirmed theoretically. The SIZ gives a density boost, produces a double layer, DL (ΔV_{DL} {\\approx} 106 - 40 V) and a warm electron population after the DL (n_{w}/n {\\approx} 0.04 - 0.10, T_{w} {\\approx} 40 - 60 eV). IEA measurements conducted at two sites (z_{1} {\\approx} 5 cm, z_{2} {\\approx} 10 cm) reveal ions with energies in the range {\\approx} 65 - 8 eV at pressures {\\approx} 1 - 8 mTorr. DL formation is explained in terms of the SIZ and warm electron generation is analysed in detail.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.26070",
  "author_total": 5,
  "authors": [
    {
      "name": "Priti Singh"
    },
    {
      "name": "Ramesh Narayanan"
    },
    {
      "name": "Ashish Ganguli"
    },
    {
      "name": "Debaprasad Sahu"
    },
    {
      "name": "Subhasish Bag"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7mf7xsk8y7ctf.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.26070",
  "fulltext_url": null,
  "id": "7mf7xsk8y7ctf",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.26070",
  "language": null,
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "physics.plasm-ph"
    ],
    [
      "openalex",
      "2208|Plasma Diagnostics and Applications"
    ]
  ],
  "openalex": "W7214124558",
  "pdf_url": "https://arxiv.org/pdf/2609.26070",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7mf7xsk8y7ctf.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:39Z",
      "native_id": "2609.26070",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.26070"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:physics.plasm-ph",
      "subfield": "plasma"
    }
  ],
  "title": "Experimental and Theoretical Study of Flow Dynamics of Expanding Hydrogen Plasma from an ECR Plasma Source",
  "title_text": "Experimental and Theoretical Study of Flow Dynamics of Expanding Hydrogen Plasma from an ECR Plasma Source",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:39Z",
  "url": "https://research.draconitic.com/paper/7mf7xsk8y7ctf",
  "venue": "arXiv",
  "versions": []
}