文章基本信息

标题：FAST-NEUTRON DIAGNOSTICS FOR TRANSMUTATION IN ACCELERATOR-DRIVEN SYSTEMS
本地全文：下载
作者：J. Blomgren ; M. Habib
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2006
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：In critical reactors, the neutron energies extend up to a few MeV. The neutron diagnostics is commonly based on activation techniques and fission ionization chambers. In accelerator-driven systems, the neutron spectrum will extend all the way up to the incident beam energy, i.e., several hundred MeV or even up to GeV energies. The high energy allows diagnostics with measurement techniques hitherto not used in reactor environments. Such measurements are primarily connected to system safety and validation. It is shown that incore fast-neutron diagnostics can be employed to monitor drifts in the position of incidence of the primary proton beam onto the neutron production target. Moreover, fast-neutron detection can be used to reveal temperature-dependent density changes in a liquid lead-bismuth target.