The Health Physics Research Reactor built in 1962 was used for radiation exposure experiments leading to more accurate dosage limits, dosimeters and improved radiation shielding.
32.
The main purpose of the flight phase was examining the effectiveness of the radiation shielding, which was one of the main concerns for the engineers.
33.
The beamline elements are located in radiation shielding enclosures, called dumped, meaning the stored beam is diverted into a target designed to absorb and contain its energy.
34.
Other cask designs orient the steel cylinder vertically on a concrete pad at a dry cask storage site and use both metal and concrete outer cylinders for radiation shielding.
35.
The atmosphere is thin enough, when coupled with Mars'lack of magnetic field, that radiation is more intense on the surface, and protection from solar storms would require radiation shielding.
36.
Tungsten's many alloys have numerous applications, including incandescent light bulb filaments, X-ray tubes ( as both the filament and target ), electrodes in TIG welding, superalloys, and radiation shielding.
37.
The bulk ( 96 % ) of the byproduct from enrichment is depleted uranium ( DU ), which can be used for armor, kinetic energy penetrators, radiation shielding and ballast.
38.
This mixture of material is then packed into a suitable carrier with radiation shielding, with one end open to allow the neutrons to shoot out, thus acting like a howitzer.
39.
Heather shows them a radiation shielding sublevel of the station on the outer edge of its rotating ring; it is filled with dirt made from lunar regolith tailings from the station's construction.
40.
For the purposes of radiation shielding, many materials have a characteristic " halving thickness " : the thickness of a layer of a material sufficient to reduce gamma radiation exposure by 50 %.
