1. A rotary shutter is located outboard of each of these beam tubes . 2. Each of the beam tubes that supply these instruments is described below. 3. She had six bow torpedo tubes but retained the 18-inch beam tubes . 4. The four 18 inch ( 457 mm ) beam tubes were nevertheless retained. 5. A carbon steel collimator assembly is located just outboard of the beam tube window. 6. The klystron, tube waveguide, is a beam tube including at least two apertured cavity resonators. 7. Details for each beam tube and instrument can be found on the HFIR instrument page. 8. The HB-1 and HB-3 thermal neutron beam tube designs are identical except for the length. 9. For example, circular particle accelerators accelerate particles by applying periodic kicks, as they circulate in the beam tube . 10. The HB-2 thermal neutron beam tube is situated radially relative to the reactor core, looking directly at the fuel.
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