{
  "annotation_id": "a5c5753a-567d-4b8d-bbfe-88044904d029",
  "date_created": "2026-03-02T18:00:46.019000Z",
  "date_modified": "2026-03-02T18:00:46.019000Z",
  "file_hash": "0f7a73605ac06f03bd06382d1526eea4db30f59bd44fdbda8beab098022e0494",
  "private": false,
  "record": {
    "abstract": "A multi-pixel photon sensor with single-photon sensitivity has been\ndeveloped, based on a technology of a hybrid photo-detector (HPD) consisting of\na photocathode and a multi-pixel avalanche diode (MP-AD). The developed HPD has\na proximity focused structure, where a photocathode and an MP-AD are facing\neach other with a small gap of 2.5 mm. The MP-AD, which has an effective area\nof 16x16 mm2 composed of 8x8 pixels, has been specially designed for the HPD.\nThe gain of the HPD reaches 5x10^4, sufficiently high to detect single photons\nwith a timing resolution better than 100 ps. Number of photoelectrons up to\nfour can be clearly identified in a pulse-height spectrum as distinct peaks,\nthanks to the low noise characteristics of the HPD. It is also demonstrated\nthat the HPD can be operated with good performance in a magnetic field as high\nas 1.5 T",
    "arxiv_id": "physics/0312017",
    "authors": [
      "Motohiro Suyama",
      "Atsuhito Fukasawa",
      "Junji Haba",
      "Toru Iijima",
      "Seigi Iwata",
      "Makoto Sakuda",
      "Takayuki Sumiyoshi",
      "Fumihiko Takasaki",
      "Manobu Tanaka",
      "Toru Tsuboyama",
      "Yoshikazu Yamada"
    ],
    "categories": [
      "physics.ins-det"
    ],
    "doi": "10.1016/j.nima.2003.12.027",
    "journal_ref": "Nucl.Instrum.Meth.A523:147-157,2004",
    "title": "Development of a multi-pixel photon sensor with single-photon   sensitivity",
    "url": "https://arxiv.org/abs/physics/0312017"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a5996a0d-2f81-4793-8531-34950b18de65",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}