Fast-neutron imaging spectrometer based on liquid scintillator loaded capillaries

I. Mor, D. Vartsky*, M. Brandis, M. B. Goldberg, D. Bar, I. Mardor, V. Dangendorf, B. Bromberger

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A fast-neutron imaging detector based on micrometric glass capillaries loaded with high refractive index liquid scintillator has been developed Neutron energy spectrometry is based on event-by-event detection and reconstruction of neutron energy from the measurement of the knock-on proton track length and the amount of light produced in the track. In addition, the detector can provide fast-neutron imaging with position resolution of tens of microns. The detector principle of operation, simulations and experimental results obtained with a small detector prototype are described. We have demonstrated by simulation energy spectrum reconstruction for incident neutrons in the range of 4-20 MeV. The energy resolution in this energy range was 10-15%. Preliminary experimental results of detector spectroscopic capabilities are presented.

Original languageEnglish
Article numberC04021
JournalJournal of Instrumentation
Issue number4
StatePublished - Apr 2012
Externally publishedYes


  • Neutron detectors (cold, thermal, fast neutrons)
  • Neutron radiography
  • Scintillators and scintillating fibres and light guides


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