{
  "annotation_id": "f5583263-9229-4c35-84f7-243253782883",
  "date_created": "2026-03-02T18:01:21.473000Z",
  "date_modified": "2026-03-02T18:01:21.473000Z",
  "file_hash": "99be44eedfd37f31a8cd1713e961b136aef827134c68e75c1365a1275fa18a20",
  "private": false,
  "record": {
    "abstract": "The E864 experiment at BNL requires a beam counter and multiplicity detector\nsystem that can perform at an incident beam rate of 10^7 Au ions per second. We\nhave developed and tested a 150 micrometer thick quartz Cherenkov beam counter\nand a scintillator based multiplicity-trigger counter during the first run of\nthis experiment in 1994. We obtained a time resolution of 78 ps for the beam\ncounter at an incident beam rate 5 x 10^5 Hz and 100 ps at a rate of 1 x 10^7\nHz. Pulse height discrimination is used to obtain a minimum bias and a 10%\ncentrality trigger from the multiplicity detectors. The multiplicity counter\nhas a time resolution of 250 ps.",
    "arxiv_id": "physics/9801033",
    "authors": [
      "P. Haridas",
      "I. A. Pless",
      "G. Van Buren",
      "J. Tomasi",
      "M. S. Z. Rabin",
      "K. Barish",
      "R. D. Majka"
    ],
    "categories": [
      "physics.ins-det"
    ],
    "doi": "10.1016/S0168-9002(96)01162-X",
    "journal_ref": "Nucl.Instrum.Meth. A385 (1997) 412-418",
    "title": "A 10 MHz beam counter and a multiplicity detector for the E864   spectrometer",
    "url": "https://arxiv.org/abs/physics/9801033"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "96512622-4556-4c93-89e6-c0b013020e06",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}