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Gamma beam collimation system and profile imager for ELI-NP.
- Source :
-
Nuclear Instruments & Methods in Physics Research Section A . Aug2019, Vol. 936, p41-42. 2p. - Publication Year :
- 2019
-
Abstract
- ELI-NP-GBS is a high-brilliance gamma source that will produce monochromatic beams in the energy range 0.2–19.5 MeV through inverse Compton scattering. In order to obtain a monochromatic beam a collimation of the emission is necessary. Depending on the energy, the angular aperture required to provide the design bandwidth Δ E/E=0.5% is between 70 and 700 μ rad. This collimation is provided by a stack of 14 tungsten slits, arranged with a relative rotation around the beam axis, so that the overlap will be a continuously adjustable aperture. To monitor the operation and alignment of the collimation, a set of detectors will provide a complete characterization of the gamma beam, including the measurement of the transverse spatial distribution. For this task a gamma beam profile imager based on a thin scintillator screen and a high-resolution CCD-camera was developed. In this work we briefly present the status of the collimation system and beam profile imager, which were designed, assembled and are currently under test at INFN-Ferrara laboratories. [ABSTRACT FROM AUTHOR]
- Subjects :
- *GAMMA ray sources
*COMPTON scattering
*GAMMA ray spectrometry
*SCINTILLATORS
Subjects
Details
- Language :
- English
- ISSN :
- 01689002
- Volume :
- 936
- Database :
- Academic Search Index
- Journal :
- Nuclear Instruments & Methods in Physics Research Section A
- Publication Type :
- Academic Journal
- Accession number :
- 137030139
- Full Text :
- https://doi.org/10.1016/j.nima.2018.10.049