Optimization of lithium-glass fibers with lithium depleted coating for neutron detection

Mayer, Michael F.; Bliss, Mary

doi:10.1016/j.nima.2019.03.035

Optimization of lithium-glass fibers with lithium depleted coating for neutron detection

Journal Article · Fri Mar 29 00:00:00 EDT 2019 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI:https://doi.org/10.1016/j.nima.2019.03.035· OSTI ID:1532361

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Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Neutron-detecting scintillating glass uses ⁶Li to capture thermal neutrons to produce an a and triton particle, which have $$a$$ range of 6 $µm$ and 36 $µm$, respectively. Captures on the surface of the glass can cause one of the particles to not deposit their energy in the glass causing the neutron to not be detected. This effect can be mitigated in lithium glass scintillators by coating lithium- glass fibers with lithium depleted scintillating glass. Thus, the scintillator’s efficiency will be increased. Results from this work show that a 20-60% increase in neutron efficiency depending on core size can be achieved with scintillating glass coatings.

View Accepted Manuscript (DOE)

Research Organization:: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC05-76RL01830

OSTI ID:: 1532361

Alternate ID(s):: OSTI ID: 1636256

Report Number(s):: PNNL-SA--138694

Journal Information:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Journal Name: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment Journal Issue: C Vol. 930; ISSN 0168-9002

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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