Upgrade of the tangential gamma-ray spectrometer beam-line for JET DT experiments
The JET tangential gamma-ray spectrometer is undergoing an extensive upgrade in order to make itcompatible with the forthcoming deuterium-tritium (DT) experiments. The paper presents the resultsof the design for the main components for the upgrade of the spectrometer beam-line: tandem collima-tors,...
| Autores: | , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2017 |
| País: | España |
| Institución: | Universidad de Sevilla (US) |
| Repositorio: | idUS. Depósito de Investigación de la Universidad de Sevilla |
| OAI Identifier: | oai:idus.us.es:11441/100024 |
| Acceso en línea: | https://hdl.handle.net/11441/100024 https://doi.org/10.1016/j.fusengdes.2017.05.064 |
| Access Level: | acceso abierto |
| Palabra clave: | Tokamak Diagnostics Gamma-rays Gamma-ray spectrometer Neutron attenuators |
| Sumario: | The JET tangential gamma-ray spectrometer is undergoing an extensive upgrade in order to make itcompatible with the forthcoming deuterium-tritium (DT) experiments. The paper presents the resultsof the design for the main components for the upgrade of the spectrometer beam-line: tandem collima-tors, gamma-ray shields, and neutron attenuators. The existing tandem collimators will be upgraded byinstalling two additional collimator modules. Two gamma-ray shields will define the gamma-ray field-of-view at the detector end of the spectrometer line-of-sight. A set of three lithium hydride neutronattenuators will be used to control the level of the fast neutron flux on the gamma-ray detector. Thedesign of the upgraded spectrometer beam-line has been supported by extensive radiation (neutron andphoton) transport calculations using both large volume and point radiation sources. |
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