DEVICE FOR DECREASING THE DENSITY OF NEUTRON FLOW TO THE HOUSING AND OTHER ESSENTIAL REACTOR ELEMENTS ON FAST NEUTRONS

摘要

1. A device for reducing the neutron flux density on the vessel and other non-replaceable elements of a fast neutron reactor, containing a cover in which elements with a moderating material are placed, hafnium hydride (HfHx) is used as a moderating material. ! 2. The device according to claim 1, characterized in that the value of the index of hydrogen content (x) in the compound HfHx is selected from the range 1.0 ÷ 1.5 depending on the required efficiency of reducing the neutron flux density. ! 3. The device according to claim 1, characterized in that the number of elements and the diameter of the spacer winding are selected based on the provision of the required heat removal conditions for each specific reactor.