Design of gamma-ray spectrometers optimized for fast particle studies at ITER.

A set of gamma ray spectrometers has been designed for ITER within the Radial Gamma Ray Spectrometer (RGRS) project. The aim of this project is designing a system, integrated with the ITER radial neutron camera, which is able to measure the gamma-rays emitted from the plasma with a good energy resolution (about 1.5% at 4.

Calibration of neutron detectors on the Joint European Torus.

The present paper describes the findings of the calibration of the neutron yield monitors on the Joint European Torus (JET) performed in 2013 using a Cf source deployed inside the torus by the remote handling system, with particular regard to the calibration of fission chambers which provide the time resolved neutron yield from JET plasmas. The experimental data obtained in toroidal, radial, and vertical scans are presented. These data are first analysed following an analytical approach adopted in the previous neutron calibrations at JET.

In-vessel activation monitors in JET: progress in modeling.

Activation studies were performed in JET with new in-vessel activation monitors. Though primarily dedicated to R&D in the challenging issue of lost diagnostics for ITER, which is being addressed at JET with several techniques, these monitors provide for both neutron and charged particle fluences. A set of samples with different orientation with respect to the magnetic field is transported inside the torus by means of a manipulator arm (in contrast with the conventional JET activation system with pneumatic transport system).

Neutron radiography examination of objects belonging to the cultural heritage.

Examination of the internal structure and composition of cultural object is extremely important for its conservation and should be carried out before conservation is planned. Knowledge of the internal structure of an object is also important for the study of ancient manufacturing technologies and sometimes also for determination of its function. In the examination of the interior structure and composition of cultural objects often only methods involving non-destructive examination (NDE) are acceptable.