Used WATKINS JOHNSON WJ 999 #9216365 for sale

WATKINS JOHNSON WJ 999 is a nuclear reactor designed and manufactured by WATKINS JOHNSON. It is a type of research reactor which is used for various scientific and engineering applications such as materials testing and radioisotope production. The reactor is a heterogeneous, light water-cooled and moderated power plant consisting of two vertical pressure vessels encased in a steel shielding capsule. The primary and secondary vessels are submerged in a below-grade concrete pool filled with water, which serves to provide additional shielding and cooling. The core is fueled by enriched uranium in metal form, contained in a number of assemblies of cylindrical tubes called fuel elements. In order to be able to control and regulate the operation of the reactor, control rods of boron carbide and/or cadmium are inserted between the fuel elements and the graphite moderators. A number of components have been designed to ensure efficient and safe operation of the reactor, including a primary recirculating equipment for circulating cooling water. This system is composed of a number of pumps, heat exchangers, valves, gauges, and other components. The reactor core is designed to operate at its optimal temperature and coolant conditions. In addition, the reactor has an emergency cooling unit in case of an sudden increase in temperature. The reactor is designed to operate either in a steady-state condition or as an alternating mode, depending on the experimental requirements. To achieve the desired operating conditions, the reactor control machine consists of a combination of safety rods, reactivity feedback rods, and a main control rod drive, all of which are connected to a sensor tool and a control panel in the control room. Finally, the reactor is monitored and maintained by personnel in the control room. During operation, parameters such as temperature, flow rate, and neutron intensity are continuously measured and monitored to ensure efficient and safe operation. The personnel in the control room are also trained to take measures in case of emergency conditions.