{
  "annotation_id": "189affa5-6533-4e77-8a7d-cee078ac7b9b",
  "date_created": "2026-03-02T18:01:24.169000Z",
  "date_modified": "2026-03-02T18:01:24.169000Z",
  "file_hash": "aac8934590f35149c576f49f679d4609ab9c4b38f79e039dc5ffce5bc1fa49f7",
  "private": false,
  "record": {
    "abstract": "The capability of performing accurate measurements of neutron beam\npolarization opens a number of exciting opportunities in fundamental neutron\nphysics and in neutron scattering. At the LANSCE pulsed neutron source we have\nmeasured the neutron beam polarization with absolute accuracy of 0.3% in the\nneutron energy range from 40 meV to 10 eV using an optically-pumped polarized\n3He spin filter and a relative transmission measurement technique. 3He was\npolarized using the Rb spin-exchange method. We describe the measurement\ntechnique, present our results, and discuss some of the systematic effects\nassociated with the method.",
    "arxiv_id": "physics/9908050",
    "authors": [
      "D. R. Rich",
      "J. D. Bowman",
      "B. E. Crawford",
      "P. P. J. Delheij",
      "M. A. Espy",
      "T. Haseyama",
      "G. Jones",
      "C. D. Keith",
      "J. Knudson",
      "M. B. Leuschner",
      "A. Masaike",
      "Y. Masuda",
      "Y. Matsuda",
      "S. I. Penttila",
      "V. R. Pomeroy",
      "D. A. Smith",
      "W. M. Snow",
      "S. L. Stephenson",
      "A. K. Thompson",
      "V. Yuan"
    ],
    "categories": [
      "physics.ins-det"
    ],
    "title": "A measurement of the absolute neutron beam polarization produced by an   optically-pumped 3He spin filter",
    "url": "https://arxiv.org/abs/physics/9908050"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7a012686-5865-442c-95cc-fbe5b233a7f9",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}