A Gamma Beam System (GBS), designed by the EuroGammaS collaboration, will be implemented for the ELI-NP facility in Magurele, Romania. The facility will deliver an intense gamma beam, obtained by collimatio of the emerging radiation from inverse Compton interaction. Gamma beam energy range will span from 0.2 up to 19.5 MeV with unprecedented performances in terms of brilliance, photon flux and energy bandwidth. For the characterisation of the gamma beam during the commissioning and normal operation, a full detection system has been designed to measure energy spectrum, beam intensity, space and time profiles. The gamma-beam characterisation system consists of four elements: a Compton spectrometer, to measure and monitor the photon energy spectrum, in particular the energy bandwidth; a sampling calorimeter, for a fast combined measurement of the beam average energy and its intensity; a nuclear resonant scattering spectrometer, for absolute beam energy calibration and inter-calibration of the other detector elements; and finally a beam profile imager to be used for alignment and diagnostics purposes. In this paper, a general overview of the ELI-NP gamma characterisation system will be given and the NRSS system will be in particular discussed.
The nuclear resonance scattering calibration technique for the EuroGammaS gamma characterisation system at ELI-NP-GBS / Pellegriti M.G.; Albergo S.; Adriani O.; Andreotti M.; Berto D.; Borgheresi R.; Cappello G.; Cardarelli P.; Consoli E.; Di Domenico G.; Evangelisti F.; Gambaccini M.; Graziani G.; Lenzi M.; Marziani M.; Palumbo L.; Passaleva G.; Paterno G.; Serban A.; Squerzanti S.; Starodubtsev O.; Tricomi A.; Variola A.; Veltri M.; Zerbo B.. - In: JOURNAL OF INSTRUMENTATION. - ISSN 1748-0221. - ELETTRONICO. - 12:(2017), pp. C03058-C03058. [10.1088/1748-0221/12/03/C03058]
The nuclear resonance scattering calibration technique for the EuroGammaS gamma characterisation system at ELI-NP-GBS
Adriani O.;Borgheresi R.;Graziani G.;Lenzi M.;Passaleva G.;Starodubtsev O.;Tricomi A.;
2017
Abstract
A Gamma Beam System (GBS), designed by the EuroGammaS collaboration, will be implemented for the ELI-NP facility in Magurele, Romania. The facility will deliver an intense gamma beam, obtained by collimatio of the emerging radiation from inverse Compton interaction. Gamma beam energy range will span from 0.2 up to 19.5 MeV with unprecedented performances in terms of brilliance, photon flux and energy bandwidth. For the characterisation of the gamma beam during the commissioning and normal operation, a full detection system has been designed to measure energy spectrum, beam intensity, space and time profiles. The gamma-beam characterisation system consists of four elements: a Compton spectrometer, to measure and monitor the photon energy spectrum, in particular the energy bandwidth; a sampling calorimeter, for a fast combined measurement of the beam average energy and its intensity; a nuclear resonant scattering spectrometer, for absolute beam energy calibration and inter-calibration of the other detector elements; and finally a beam profile imager to be used for alignment and diagnostics purposes. In this paper, a general overview of the ELI-NP gamma characterisation system will be given and the NRSS system will be in particular discussed.
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