A new photocurable scintillator fabrication capability at Lawrence Berkeley National Laboratory

ORAL

Abstract

In recent years, novel methods have emerged in the fabrication of neutron-detecting organic scintillators. For example, fast UV-photocurable scintillating plastics can be made to create customized geometries through additive manufacturing or simple molding techniques. Layering volumes with variable proportions of wavelength shifters can add position-dependent detection capabilities. Advances in position sensitivity, timing resolution, or recoil angle identification enabled by these techniques would benefit a number of fields, including specific interests in neutron resonance characterization from beta-n decays and low-energy extension of neutron spectral measurements at Lawrence Berkeley National Laboratory's (LBNL) GENESIS inelastic neutron scattering facility. To investigate these new techniques in combination with lithiation to provide low-energy neutron detection, a new fabrication workstation has been assembled at LBNL's 88-Inch Cyclotron, initially by duplicating existing capabilities at the Air Force Institute of Technology and Oak Ridge National Laboratory. The photon- and neutron-induced light yield response from the first scintillators produced by this new facility will be presented and plans for future research discussed.

*This work was performed under the auspices the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52- 07NA27344 and Lawrence Berkeley National Laboratory under Contract No. DE-AC02-05CH11231.

Presenters

  • Darren L Bleuel

    • Lawrence Livermore Natl Lab

Authors

  • Darren L Bleuel

    • Lawrence Livermore Natl Lab
  • Michael T Febbraro

    • Air Force Institute of Technology
  • Juan Manfredi

    • Air Force Institute of Technology
  • Gregory Rose

    • University of California at Berkeley
  • Adriana Sweet

    • University of California, Berkeley
    • Lawrence Livermore National Laboratory