{
  "annotation_id": "d5afb97c-7bf2-4fe7-8c77-3793a3cdec51",
  "date_created": "2026-03-02T18:00:43.063000Z",
  "date_modified": "2026-03-02T18:00:43.063000Z",
  "file_hash": "a900388e04fd76d1ccaadc17bcf5d4ab5c1d8d84c1bb3672551107ae979a5f90",
  "private": false,
  "record": {
    "abstract": "Suspensions of superheated superconducting grains are a detecting composite\nmaterial. Each grain in the supension is a microcalorimeter with an energy\nthreshold defined by its equatorial magnetic field for a given temperature. The\nhigher the matrix density, the larger the gamma stopping power. For several\nyears, cylindrical cells of such suspensions about 2 cm long and 0.4 mm in\ndiameter can be read out in real time. As a result, using two independent\ncells, one can record a time coincidence between them. This could be\npotentially very useful for positron cameras where two diametrically opposite\ncells are simultaneously knocked by 511 keV gammas. This paper, based on the\nstate of art in SSG in high density matrix, discusses such a feasibility.",
    "arxiv_id": "physics/0212077",
    "authors": [
      "Roger Bruhre-Dawson",
      "Jacques Maillard",
      "Girard Maurel",
      "Jorge Silva",
      "Georges Waysand"
    ],
    "categories": [
      "physics.ins-det"
    ],
    "title": "Preliminary Study of the Feasibility of a Non Crystalline Positron   Emission Tomography Using a Suspension of Superheated Superconducting Grains   (SSG) in High Density Dielectric Matrix (HDDM) as Detector",
    "url": "https://arxiv.org/abs/physics/0212077"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0e61f932-8453-4eb4-8c73-59f9731707db",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}