{
  "annotation_id": "bcb719a1-f5c7-4dc1-abd3-5257237a9caa",
  "date_created": "2026-03-02T18:00:32.376000Z",
  "date_modified": "2026-03-02T18:00:32.376000Z",
  "file_hash": "6942a94a920be45f6251d1fe42e3d3b273ae269f13bb82f7e01fa7c71df0e116",
  "private": false,
  "record": {
    "abstract": "The construction of the 60-MeV proton linac has started as a low-energy front\nof the KEK/JAERI Joint Project for a high-intensity proton accelerator facility\nat KEK. The accelerating frequency is 324 MHz. Five UHF klystrons are used as\nan rf source; their ratings have a maximum power of 3 MW, a beam pulse width of\na 700 micro-sec (an rf pulse width is 650 micro-sec) and a repetition rate of\n50 pps. We have manufactured a proto-type rf source (a power-supply system with\na modulating-anode pulse modulator and prototype klystrons). In this paper, the\nspecifications and developments of the rf source, including the WR-2300\nwaveguide system, are summarized. During the manufacturing process, strong\noscillations due to back-going electrons from the collector were observed. This\nphenomenon was analyzed both experimentally and theoretically. We have tested\nup to an output power of nearly 3 MW, and succeeded to test the DTL hot-model\nstructure.",
    "arxiv_id": "physics/0008040",
    "authors": [
      "S. Fukuda",
      "A. Anami",
      "C. Kubota",
      "M. Kawamura",
      "S. Yamaguchi",
      "M. Ono",
      "H. Nakanishi",
      "S. Miyake",
      "M. Sakamoto"
    ],
    "categories": [
      "physics.acc-ph"
    ],
    "journal_ref": "eConf C000821 (2000) THE02",
    "title": "The RF source of the 60-MeV Linac for the KEK/JAERI Joint Project",
    "url": "https://arxiv.org/abs/physics/0008040"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c8f0a991-847c-4902-925d-4934f93d92d6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}