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Near-threshold measurement of the He-4(gamma,n) reaction

Författare:
Publiceringsår: 2005
Språk: Engelska
Sidor: 65-71
Publikation/Tidskrift/Serie: PHYSICS LETTERS B
Volym: 626
Nummer: 1-4
Dokumenttyp: Artikel
Förlag: ELSEVIER SCIENCE BV

Sammanfattning

A near-threshold He-4(gamma, n) cross-section measurement has been performed at MAX-lab. Tagged photons from 23 < Ey < 42 MeV were directed toward a liquid He-4 target, and neutrons were detected by time-of-flight in two liquid-scintillator arrays. Seven-point angular distributions were measured for eight photon energies. The results are compared to experimental data measured at comparable energies and Recoil-Corrected Continuum Shell Model, Resonating Group Method, and recent Hyperspherical-Harmonic Expansion calculations. The angle-integrated cross-section data are peaked at a photon energy of about 28 MeV, in disagreement with the value recommended by Calarco, Berman, and Donnelly in 1983.

Disputation

Nyckelord

  • Physics and Astronomy
  • time-of-flight
  • tagged photons
  • n)
  • He-4(gamma
  • cross section

Övriga

Published
Yes
  • Photonuclear Research
  • ISSN: 0370-2693

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