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. ChaeM. J. Kim, M. S. Kwag

Research output: Contribution to journalArticlepeer-review

11 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). 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 ).

Keywords

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

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