Investigation of Compton scattering for gamma beam intensity measurements and perspectives at ELI-NP

  • G. V. Turturica
  • , C. Matei
  • , A. Pappalardo
  • , D. L. Balabanski
  • , S. Chesnevskaya
  • , V. Iancu
  • , C. A. Ur
  • , H. J. Karwowski
  • , K. A. Chipps
  • , M. T. Febbraro
  • , S. D. Pain
  • , D. Walter
  • , C. Aa Diget
  • , J. Frost-Schenk
  • , M. Munch
  • , G. L. Guardo
  • , M. La Cognata
  • , R. G. Pizzone
  • , G. G. Rapisarda
  • , K. Y. Chae
  • M. J. Kim, M. S. Kwag

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Compton γ-ray sources have been in operation for over 30 years with new facilities being under construction or proposed. The gamma beam system under implementation at the Extreme Light Infrastructure - Nuclear Physics facility in Romania will deliver brilliant γ-ray beams with energies up to 19.5 MeV. Several instruments for measuring the parameters of the γ-ray beam are under development at ELI-NP. One of these instruments based on a High Purity Germanium detector is routinely used for beam energy measurements at other facilities. Here we investigate the use of a High Purity Germanium detector to continuously monitor the intensity of the ELI-NP gamma beam by measuring the inelastic scattering of photons. This method relies on both experimental and simulated data and it has been successfully tested during a recent experiment at the High Intensity γ-ray Source facility.

Funding

This word is also partly supported by a National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (Nos. NRF-2016R1A5A1013277 and NRF-2018M7A1A1072274 ). This work is supported by Extreme Light Infrastructure Nuclear Physics (ELI-NP) Phase II, a project co-financed by the Romanian Government and by the European Regional Development Fund—the Competitiveness Operational Programme (1/07.07.2016, COP, ID 1334).

Keywords

  • Compton scattering
  • ELI-NP
  • GEANT4
  • HPGe
  • γ-ray beam

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