B enriched film deposited by e-beam technique on Al

G. Celentano, A. Vannozzi, A. Mancini, A. Santoni, A. Pietropaolo, G. Claps, E. Bemporad, M. Renzelli, F. Murtas, L. Quintieri

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6 Citations (Scopus)

Abstract

In the framework of the research and development activity on He-free neutron detection systems, the solid state physics experimental techniques and characterization tools can provide a valuable contribution for detector assessment and performance improvement. Presently, a He-replacement strategy relies on the use of Li-and/or B-based neutron to charge particle converters coupled to particle detectors (solid state, gaseous, scintillators). In particular, in this paper the detailed structural and chemical-physical characterization of10B-enriched films deposited by e-beam evaporation onto alumina substrates is reported. X-ray diffraction and photoelectron spectroscopy investigations have revealed that high B content (about 78%) can be achieved on these films, contaminants being mainly C and O most likely coming from the B targets. Microstructural investigation carried out by AFM, SEM and nanoindentation techniques have mainly revealed that B films replicated the alumina substrate microstructural features. The described10B/Al2O3samples were successfully tested in a Gas Electron Multiplier based neutron detector with measured detection efficiency in full agreement with the expectations.
Original languageEnglish
Pages (from-to)160 - 165
Number of pages6
JournalSurface and Coatings Technology
Volume265
DOIs
Publication statusPublished - 15 Mar 2015
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Celentano, G., Vannozzi, A., Mancini, A., Santoni, A., Pietropaolo, A., Claps, G., ... Quintieri, L. (2015). B enriched film deposited by e-beam technique on Al. Surface and Coatings Technology, 265, 160 - 165. https://doi.org/10.1016/j.surfcoat.2015.01.041