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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)27-32
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume921
Early online date18 Dec 2018
DOIs
Publication statusPublished - 21 Mar 2019

Bibliographical note

© 2018 Elsevier B.V. All rights reserved. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy.

Keywords

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

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