Open AccessNeutron Activation Cool-down of the Tokamak Fusion Test Reactor
Author(s) -
H. Kugel,
G. Ascione,
C. Tilson,
Anil Kumar
Publication year - 1998
Language(s) - English
Resource type - Reports
DOI - 10.2172/2559
Subject(s) - tokamak fusion test reactor , nuclear engineering , tokamak , shutdown , fusion power , nuclear physics , neutron , neutron activation , materials science , neutron flux , plasma , physics , engineering
Tokamak Fusion Test Reactor (TFTR) final operations and post-shutdown neutron activation measurements were made. Ionization chambers were used to follow TFTR activation during operations and after shutdown. Gamma-ray energy spectroscopy measurements were performed to characterize TFTR activation at accessible vessel-bays and on sample hardware removed from structures at various distances from the vessel. The results demonstrate long-lived activations from common, commercially available materials used in the fabrication and field engineering of TFTR. The measurements allow characterization of residual TFTR neutron activation, the projection of residual activation decay, and benchmarking of low activation issues simulations