{
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  "date_created": "2026-03-02T18:00:49.900000Z",
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    "abstract": "Methodology for calculating the profile and emittance of a particle beam as\nit is slowed down in matter, including the effects of multiple scattering,\naxial magnetic field and lithium lens. Strategies are determined for minimum\nfinal emittance. For ionization cooling, boron carbide is superior to liquid\nhydrogen while a beryllium lens has merit.",
    "arxiv_id": "physics/0404072",
    "authors": [
      "Francis J. M. Farley"
    ],
    "categories": [
      "physics.acc-ph"
    ],
    "doi": "10.1016/j.nima.2004.11.034",
    "journal_ref": "Nucl.Instrum.Meth. A540 (2005) 235-244",
    "title": "Optimum strategy for energy degraders and ionization cooling",
    "url": "https://arxiv.org/abs/physics/0404072"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "bc7287fc-f62a-4e3b-9e6f-f133bf2ea7b4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}