Proof of principle of a high-spatial-resolution, resonant-response γ-ray detector for Gamma Resonance Absorptionin 14N

M. Brandis*, M. B. Goldberg, D. Vartsky, E. Friedman, I. Kreslo, I. Mardor, V. Dangendorf, S. Levi, I. Mor, D. Bar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The development of a mm-spatial-resolution, resonant-response detector based on a micrometric glass capillary array filled with liquid scintillator is described. This detector was developed for Gamma Resonance Absorption (GRA) in 14N. GRA is an automatic-decision radiographic screening technique that combines high radiation penetration (the probe is a 9.17 MeV γ-ray) with very good sensitivity and specificity to nitrogenous explosives. Detailed simulation of the detector response to electrons and protons generated by the 9.17 MeV γ-rays was followed by a proof-of-principle experiment, using a mixed γ-ray and neutron source. Towards this, a prototype capillary detector was assembled, including the associated filling and readout systems. Simulations and experimental results indeed show that proton tracks are distinguishable from electron tracks at relevant energies, based on a criterion that combines track length and light intensity per unit length.

Original languageEnglish
Article numberP02008
JournalJournal of Instrumentation
Volume6
Issue number2
DOIs
StatePublished - Feb 2011

Keywords

  • Detection of explosives
  • Inspection with gamma rays

Fingerprint

Dive into the research topics of 'Proof of principle of a high-spatial-resolution, resonant-response γ-ray detector for Gamma Resonance Absorptionin 14N'. Together they form a unique fingerprint.

Cite this