出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Long-lived fission products and minor actinides produced in nuclear power plants are the most
radiotoxic nuclear wastes. They can be transmuted into stable nuclei or into nuclei with shorter
lifetime thanks to the so-called Accelerator Driven Systems (ADS), consisting of the coupling of
an intense high energy proton beam, a spallation target and a sub-critical reactor core. For safety
reasons, an on-line and robust measurement of the reactivity during loading and power operation
is mandatory. The investigation of the relationship between the current of the accelerator and the
power level (or neutron flux) of the reactor appears to be powerful, any change in reactivity
being accessible through the measurement of the current and the flux. Such a relationship will
be studied in an experiment to be performed at the YALINA facility (JIPNR Sosny - Belarus) in
the framework of the EUROTRANS IP (6th FP). At this installation, 14 MeV neutrons are
produced in T(d,n)4He reactions by a deuteron beam impinging on a TiT target. Due to the
tritium consumption over time, the intensity of the deuteron beam cannot be used for the
monitoring of the neutron beam. The source neutron yield itself has to be accessed. This
contribution describes the performance of a three-element silicon telescope dedicated to the
detection of recoil protons produced in reactions induced by 14 MeV neutrons.
