A twin Frisch-grid ionization chamber as a selective detector for the delayed gamma-spectroscopy of fission fragments - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Année : 2017

A twin Frisch-grid ionization chamber as a selective detector for the delayed gamma-spectroscopy of fission fragments

Résumé

We present a twin Frisch-grid ionization chamber. The detector is meant to provide high selective power for the study of delayed gamma-ray spectroscopy of fission fragments produced via 252Cf spontaneous fission. A mean energy resolution on the kinetic energy of fission fragments of 675 keV (FWHM) is achieved and allows us to resolve masses of fragments for fission events where neutron emission is not energetically possible. The mean mass resolution measured for these particular events amounts to 0.54 mass units (FWHM). For fission events with neutron emission a resolution of 4 mass units (FWHM) is reported. Information on fragment emission angle is measured with a resolution of 0.1 on the difference of the cosines determined for both halves of the detector. A charge resolution of 4.5 charge units (FWHM) is also demonstrated.
Fichier non déposé

Dates et versions

hal-01555225 , version 1 (03-07-2017)

Identifiants

Citer

L. Gaudefroy, T. Roger, J. Pancin, C. Spitaels, J. Aupiais, et al.. A twin Frisch-grid ionization chamber as a selective detector for the delayed gamma-spectroscopy of fission fragments. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2017, 855, pp.133-139. ⟨10.1016/j.nima.2017.02.071⟩. ⟨hal-01555225⟩
179 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More