{
  "annotation_id": "0b014190-a40e-4ba4-9a92-97b2d4c34980",
  "date_created": "2026-03-02T18:00:49.650000Z",
  "date_modified": "2026-03-02T18:00:49.650000Z",
  "file_hash": "bb395b01091a891289f66c2a842b4708b7d0f1ff9fceffeefb9795f2ea4ccf07",
  "private": false,
  "record": {
    "abstract": "The electromagnetic radiation generated by ultra-relativistic positrons\nchannelling in a crystalline undulator is discussed. The crystalline undulator\nis a crystal whose planes are bent periodically with the amplitude much larger\nthan the interplanar spacing. Various conditions and criteria to be fulfilled\nfor the crystalline undulator operation are established. Different methods of\nthe crystal bending are described. We present the results of numeric\ncalculations of spectral distributions of the spontaneous radiation emitted in\nthe crystalline undulator and discuss the possibility to create the stimulated\nemission in such a system in analogy with the free electron laser. A careful\nliterature survey covering the formulation of all essential ideas in this field\nis given. Our investigation shows that the proposed mechanism provides an\nefficient source for high energy photons, which is worth to study\nexperimentally.",
    "arxiv_id": "physics/0403082",
    "authors": [
      "A. V. Korol",
      "A. V. Solov\u0027yov",
      "W. Greiner"
    ],
    "categories": [
      "physics.acc-ph"
    ],
    "doi": "10.1142/S0218301304002557",
    "journal_ref": "Int.J.Mod.Phys. E13 (2004) 867-916",
    "title": "Channeling of Positrons through Periodically Bent Crystals: on   Feasibility of Crystalline Undulator and Gamma-Laser",
    "url": "https://arxiv.org/abs/physics/0403082"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "dc2a6504-594e-48e1-bf85-5c334cfd75a4",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}