Details

Autor(en) / Beteiligte

• Harken, A.D.
• Lundstedt, C.N.
• Day, E.E.
• Robertson, B.W.

Titel

Neutron detection efficiency and capture product energy spectra of all-semiconducting-boron carbide and conversion-layer detectors

Ist Teil von

• IEEE Symposium Conference Record Nuclear Science 2004, 2004, Vol.7, p.4585-4589 Vol. 7

Ort / Verlag

IEEE

Erscheinungsjahr

2004

Quelle

IEEE Xplore

Beschreibungen/Notizen

• Solid-state neutron detectors based only on boron-rich semiconductor are of interest for their potential to provide the highest thermal neutron detection efficiencies of any solid-state neutron detectors. A simplified physical model is shown to generate capture product spectra that agree quantitatively with full-physics GEANT4 simulation. Using this model, comparisons are made between the ideal capture-product energy spectra of planar conversion layer and all-boron-carbide-semiconductor detectors. The energy distributions and efficiencies of the ideal all-boron-carbide-semiconductor are found to be highly advantageous, with thermal neutron detection efficiencies potentially of 50 to 80% for devices only 20 to 50 /spl mu/m thick.