Neutron Counting materials

A variety of detector materials are offered for Thermal and Fast Neutron detection.. These can be grouped into two categories according to their response to neutron and gamma radiation:

Fast Neutron Detection,
BC-720 detects fast neutrons while being insensitive to gamma radiation

• consists of ZnS(Ag) phosphor embedded in clear hydrogenous plastic
• can be coupled directly to a photomultiplier tube or light guide.

Thermal Neutron Detection,
BC-702 detects thermal neutrons and very little gamma sensitivity

• is a matrix of a lithium compound enriched to 95% Li-6 dispersed in a fine ZnS(Ag) phosphor powder
• can be coupled directly to a photomultiplier tube or light guide.

BC-704 and BC-705 are for thermal neutron radiography

• BC-704 is a phosphor screen based on ZnS(Ag) and ₆Li.
• BC-705 is a phosphor screen based on zinc sulfide activated with copper, i.e., ZnS(Cu) available up to 300 x 300mm screen, integrated with PMT