{
  "annotation_id": "453d6d8c-f5d9-44ba-8770-6e755b4ca83d",
  "date_created": "2026-03-02T18:00:43.216000Z",
  "date_modified": "2026-03-02T18:00:43.216000Z",
  "file_hash": "78289266fa3f95fd91348d903521426141f598477d770fa134d8455642579d18",
  "private": false,
  "record": {
    "abstract": "A MicroCAT (Micro Compteur A Trous) structure which is used for avalanche\ncharge multiplication in gas filled radiation detectors has been optimised with\nrespect to maximum electron transparency and minimum ion feedback. We report on\nthe charge transfer behaviour and the achievable gas gain of this device. A\nthree-dimensional electron and ion transfer simulation is compared to results\nderived from electric current measurements. Similarly, we present studies of\nthe charge transfer behaviour of a GEM (Gas Electron Multiplier) by current\nmeasurements and simulations. Finally, we investigate the combination of the\nMicroCAT and the GEM by measurements with respect to the performance at\ndifferent voltage settings, gas mixtures and gas pressures.",
    "arxiv_id": "physics/0301008",
    "authors": [
      "A. Orthen",
      "H. Wagner",
      "H. J. Besch",
      "R. H. Menk",
      "A. H. Walenta",
      "U. Werthenbach"
    ],
    "categories": [
      "physics.ins-det"
    ],
    "doi": "10.1016/S0168-9002(03)00338-3",
    "journal_ref": "Nucl.Instrum.Meth. A500 (2003) 163-177",
    "title": "Investigation of the performance of an optimised MicroCAT, a GEM and   their combination by simulations and current measurements",
    "url": "https://arxiv.org/abs/physics/0301008"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "76190e58-d5bd-4e45-9c69-68100ea50898",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}