{
  "annotation_id": "02e87fd7-a471-4b00-9853-828800d2c340",
  "date_created": "2026-03-02T18:00:32.547000Z",
  "date_modified": "2026-03-02T18:00:32.547000Z",
  "file_hash": "c037fd46f2ac827c96863fb6e9405d2b137b297d90846732b56f390ab8712eb3",
  "private": false,
  "record": {
    "abstract": "An S-band linear accelerator is the source of particles and the front end of\nthe Advanced Photon Source injector. In addition, it supports a low-energy\nundulator test line (LEUTL) and drives a free-electron laser (FEL). A\nwaveguide-switching and distribution system is now under construction. The\nsystem configuration was revised to be consistent with the recent change to\nelectron-only operation. There are now six modulator-klystron subsystems, two\nof which are being configured to act as hot spares for two S-band transmitters\neach, so that no single failure will prevent injector operation. The two\nsubsystems are also used to support additional LEUTL capabilities and off-line\ntesting. Design considerations for the waveguide-switching subsystem, topology\nselection, control and protection provisions, high-power test results, and\ncurrent status are described",
    "arxiv_id": "physics/0008154",
    "authors": [
      "A. E. Grelick",
      "N. Arnold",
      "S. Berg",
      "D. Dohan",
      "G. Goeppner",
      "Y. W. Kang",
      "A. Nassiri",
      "S. Pasky",
      "G. Pile",
      "T. Smith",
      "S. J. Stein"
    ],
    "categories": [
      "physics.acc-ph"
    ],
    "journal_ref": "eConf C000821 (2000) THE07",
    "title": "Testing and Implementation Progress on the Advanced Photon Source (APS)   Linear Accelerator (Linac) High-Power S-band Switching System",
    "url": "https://arxiv.org/abs/physics/0008154"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1848e4af-5f76-4409-9aa4-7916fbd11323",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}