NPO EUROPE uses many types of neutron absorbsion materials such as polyethylene, borated polyethylene and naphthalene to thermalize and capture neutrons.

 

Polyethylene

The hydrogen contained in the polyethylene thermalize significantly neutrons .

 

Borated polyethylene

Another rapid neutrons absorbsion material is to add boron (5% by weight) in the polyethylene

The probability of neutron capture by a boron is more than 10,000 times that of a hydrogen nucleus, regardless of the neutron energy. The probabilities themselves increase significantly when the neutron is thermalized hydrogen).

Borated polyethylene shields are perfect for reducing neutron dose in a general area. Typical 50 mm thickness provides approximately 61% neutron attenuation.

Borated polyethylene is incorporated in NPO shield bells, lid shields, and other applications where neutron radiation is the biggest concern.

 

T FLEX® (tungsten / bismuth / iron) + boron.

A combination of benefits! Our T-FLEX® is an excellent attenuator for gamma radiation. We can add to our matrix boron to make a neutron shielding as well.