This standard applies to in-core (on-line) neutron detectors and instrumentation which is designed for safety, information or control purposes. It also applies to components in so far as these compo-nents are contained within the primary envelope of the reactor. The detector types usually used are d.c. ionization chambers, fission ion chambers and self-powered neutron detectors.
This standard is intended as a code of practice for the design of in-core instrumentation for neutron fluence r?te measurements in thermal neutron reactors designed for power production.
The major emphasis in this guide is on the general design aspect of on-line systems.
Nole. — For the principles of overall system design and purpose of neutron flux measurements, reference should be made to IEC Publication 231, General Principles of Nuclear Reactor Instrumentation, Clause 2.
SIS SS IEC 568:1981 history
1981SIS SS IEC 568:1981 Nuclear instrumentation - In-core instrumentation for neutron fluence r?te (flux) measurements in power reactors