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Zinc Sulfide and Lithium based Neutron Detectors

BC-720 detects fast neutrons

Neutron detection products that are specifically formulated for the efficient detection of neutrons in the presence of gamma radiation. They can be coupled directly to a photomultiplier tube or light guide. 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 consists of ZnS(Ag) phosphor embedded in a clear hydrogenous plastic.

Thermal Neutron Detection

  • BC-702 is a matrix of a lithium compound enriched to 95% 6Li dispersed in a fine ZnS(Ag) phosphor powder.
  • 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)
  • NeuPort / NeuTruck is a 6LiF/ZnS(Ag) based neutron detector to replace He3 tube in Radiation Portal and Mobile Monitors.  Proprietary Pulse Shape Discrimination (PSD) algorithm is employed to count neutrons and reject gamma ray events.

 

 

Features/Benefits

  • BC-720 detects fast neutrons while being insensitive to gamma radiation
  • BC-702 detects thermal neutrons and very little gamma sensitivity
  • BC-704 and BC-705 are for thermal neutron radiography
  • NeuTruck and NeuPort replaces He-3 systems without modification of existing electronics or significant changes in voltage and provides performance that meets or exceeds ANSI standards
 

Specifications

  • BC-702: 38, 50, 76, 127mm diameters x 6.35mm thick Disc
  • BC-720: 38, 50, 76, 127mm diameters x 15.9mm thick Disc
  • BC-704 and BC-705: Up to 300 x 300mm screen, integrated with PMT