gadolinium nitrate

A secondary system injects a high-pressure gadolinium nitrate neutron absorber solution into the calandria.

At the same time, the gadolinium nitrate played the same chemical role as saltpeter - or, more properly, potassium nitrate.

Various solutions, including sodium polyborate and gadolinium nitrate (Gd(NO) xHO), are used.

Gadolinium nitrate was used at the Savannah River Site heavy water nuclear reactors and has to be separated from the heavy water for storage or reuse.

To introduce a magnetic material into the chips, researchers in the lab poured a solution onto the chips that, when dried, left gadolinium nitrate in the channels.

Gadolinium nitrate (GdNO) solution, a neutron-absorbing liquid that shuts down the nuclear chain reaction, is stored inside channels that feed into horizontal nozzle assemblies.

Gadolinium nitrate is also used as a raw material in the production of other gadolinium compounds, for production of specialty glasses and ceramics and as a phosphor.

The Canadian CANDU reactor, a pressurized heavy water reactor, also uses gadolinium nitrate as a water-soluble neutron poison in heavy water.

Alloys or compounds may also be used, such as high-boron steel, silver-indium-cadmium alloy, boron carbide, zirconium diboride, titanium diboride, hafnium diboride, gadolinium nitrate, gadolinium titanate and dysprosium titanate.

Neutron poisons are water-based solutions that contain chemicals that absorb neutrons, such as common household borax, sodium polyborate, boric acid, or gadolinium nitrate, causing a decrease in neutron multiplication, and thus shutting down the reactor without use of the control rods.