Artículo
The preparation of the Shutdown Dose Rate experiment for the next JET Deuterium-Tritium campaign
Autor/es | Fonnesu, N.
Villari, R. Loreti, S. Angelone, M. Pilotti, R. Jet Contributors García Muñoz, Manuel |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2017-11 |
Fecha de depósito | 2020-07-30 |
Publicado en |
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Resumen | The assessment of the Shutdown Dose Rate (SDR) due to neutron activation is a major safety issue forfusion devices and in the last decade several benchmark experiments have been conducted at JET duringDeuterium-Deuterium ... The assessment of the Shutdown Dose Rate (SDR) due to neutron activation is a major safety issue forfusion devices and in the last decade several benchmark experiments have been conducted at JET duringDeuterium-Deuterium experiments for the validation of the numerical tools used in ITER nuclear analy-ses. The future Deuterium-Tritium campaign at JET (DTE2) will provide a unique opportunity to validatethe codes under ITER-relevant conditions through the comparison between numerical predictions andmeasured quantities (C/E). For this purpose, a novel SDR experiment, described in the present work, isin preparation in the frame of the WPJET3-NEXP subproject within EUROfusion Consortium. The exper-imental setup has been accurately designed to reduce measurement uncertainties; spherical air-ventedionization chambers (ICs) will be used for on-line ex-vessel decay gamma dose measurements duringJET shutdown following DT operations and activation foils have been selected for measuring the neutronfluence near ICs during operations. Active dosimeters (based on ICs) have been calibrated over a broadenergy range (from about 30 keV to 1.3 MeV) with X and gamma reference beam qualities. Neutron irra-diation tests confirmed the capability of active dosimeters of performing on-line decay gamma dose ratemeasurements, to follow gamma dose decay at the end of neutron irradiation as well as insignificantactivation of the ICs. |
Identificador del proyecto | 633053 |
Cita | Fonnesu, N., Villari, R., Loreti, S., Angelone, M., Pilotti, R., Jet Contributors, y García Muñoz, M. (2017). The preparation of the Shutdown Dose Rate experiment for the next JET Deuterium-Tritium campaign. Fusion Engineering and Design, 123, 1039-1043. |
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