| 摘要 |
<p>1,132,228. Reactor control rods. UNITED STATES ATOMIC ENERGY COMMISSION. 22 Nov., 1965 [28 Jan., 1965], No. 49559/65. Heading G6C. In a high power density nuclear reactor, of the thermal or epithermal type, control is effected by absorber rods so as to avoid axial flux distortion. The length of the control rod 10 is three times the reactor core height. The centre section 12 is the same height as the reactor core and consists of a centre portion 13, " black " to thermal neutrons, and half the core height and upper and lower portions 14, grey to thermal neutrons. The lowest section 11 is of non - neutron - absorbing material while the upper section 15, is black to thermal neutrons. The rods are positioned so that one of the three sections 11, 12, and 15 lies wholly within the reactor core and in conjunction with other conventional control rods.</p> |
