Speaker
Description
The Divertor Tokamak Test (DTT) facility is equipped with a dedicated diagnostic suite to monitor neutron emission and runaway electron generation since the commissioning and early operational phases. The DD and DT neutron yield will be measured using fission chambers, BF₃ detectors, scintillation detectors, and single-crystal diamond detectors. In addition, time-integrated measurements of the neutron yield and energy spectrum will be performed using a neutron activation system. Runaway electrons will be monitored by the Runaway Electron Imaging and Spectroscopy (REIS) system, which measures the synchrotron radiation emitted by in-flight runaway electrons using cameras and spectrometers operating in the visible and infrared spectral ranges. Complementary measurements will be provided by BC-509 scintillators and an NE213 scintillator, which detect the hard X-rays generated by the interaction of runaway electrons with the tokamak structures.
This contribution provides an overview of the design of the DTT neutron and runaway electron diagnostic systems for first plasma operation, describes the calibration strategy adopted for the neutron monitors, and discusses the implementation status of the various diagnostics.