Schematic diagram of an Advanced Gas-cooled Reactor type nuclear reactor<br>1. Charge tubes<br>2. Control rods<br>3. Graphite moderator<br>4. Fuel assemblies<br>5. Concrete pressure vessel and radiation shielding<br>6. Gas circulator<br>7. Water<br>8. Water circulator<br>9. Heat exchanger <br>10. Steam
<a href="//commons.wikimedia.org/wiki/User:MesserWoland" title="User:MesserWoland">MesserWoland</a>
CC BY-SA 3.0
own work based on <a href="//commons.wikimedia.org/wiki/File:AGR_reactor_schematic.png" title="File:AGR reactor schematic.png">Image:AGR reactor schematic.png</a> by <a href="//commons.wikimedia.org/wiki/User:Emoscopes" title="User:Emoscopes">Emoscopes</a>