Current and future nuclear technologies require more accurate nuclear data on (n,γ) cross sections and the α-ratios of fissile isotopes. Their measurement presents several difficulties, mainly related to the strong fission γ-ray background competing with the weaker γ-ray cascades used as the experimental signature of the (n,γ) process. A specific setup was used at the CERN n TOF facility in 2012 for the measurement of the (n,γ) cross section and α-ratios of fissile isotopes and used for the case of the 235 U isotope. The setup consists of a set of micromegas fission detectors surrounding the 235 U samples all placed inside a segmented BaF2 Total Absorption Calorimeter. © 2014 Elsevier Inc. All rights reserved.
Measurement of the neutron capture cross section of the c 235U with the CERN n_TOF total absorption calorimeter and a fission tagging based on micromegas detectors
Ventura, A.;Mengoni, A.
2014-01-01
Abstract
Current and future nuclear technologies require more accurate nuclear data on (n,γ) cross sections and the α-ratios of fissile isotopes. Their measurement presents several difficulties, mainly related to the strong fission γ-ray background competing with the weaker γ-ray cascades used as the experimental signature of the (n,γ) process. A specific setup was used at the CERN n TOF facility in 2012 for the measurement of the (n,γ) cross section and α-ratios of fissile isotopes and used for the case of the 235 U isotope. The setup consists of a set of micromegas fission detectors surrounding the 235 U samples all placed inside a segmented BaF2 Total Absorption Calorimeter. © 2014 Elsevier Inc. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
