MOVEMENT CONTROL BAR FOR USE IN A NUCLEAR SPECTRAL DRIFT REACTOR CONSISTING OF METAL TUBES THOSE JOINED BY INTERMEDIATE BAR SECTIONS

摘要

A displacer rod for use in a mechanical spectral shift pressurized water nuclear reactor comprises a sectioned substantially hollow low neutron absorbing metal rod capable of displacing reactor coolant without absorbing a high amount of neutrons. The tubular sections can be made of stainless steel or Zircaloy tubing and may contain pellets for weighting the displacer rod.