{
  "annotation_id": "2ff60416-179d-4f9b-8cb4-6933c23092ba",
  "date_created": "2026-03-02T18:00:53.740000Z",
  "date_modified": "2026-03-02T18:00:53.740000Z",
  "file_hash": "284f915268ed52ae5c4cdd32bc5dc68992838fe5ef92978951f27d8363318a9c",
  "private": false,
  "record": {
    "abstract": "We have developed two radiation-hard ASICs for optical data transmission in\nthe ATLAS pixel detector at the LHC at CERN: a driver chip for a Vertical\nCavity Surface Emitting Laser (VCSEL) diode for 80 Mbit/s data transmission\nfrom the detector, and a Bi-Phase Mark decoder chip to recover the control data\nand 40 MHz clock received optically by a PIN diode. We have successfully\nimplemented both ASICs in 0.25 mm CMOS technology using enclosed layout\ntransistors and guard rings for increased radiation hardness. We present\nresults from circuits of final design and from irradiation studies with 24 GeV\nprotons up to 62 Mrad (2.3 x 10^15 p/cm^2).",
    "arxiv_id": "physics/0409055",
    "authors": [
      "K. K. Gan"
    ],
    "categories": [
      "physics.ins-det",
      "hep-ex"
    ],
    "doi": "10.1142/S0217751X05027667",
    "journal_ref": "Int.J.Mod.Phys.A20:3802-3804,2005;\n  Nucl.Phys.Proc.Suppl.150:82-85,2005",
    "title": "Radiation-hard ASICs for optical data transmission in the ATLAS pixel   detector",
    "url": "https://arxiv.org/abs/physics/0409055"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5eb1ef85-ac01-46ad-b68f-259bc00e1c3e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}