Bulletin of the American Physical Society
APS March Meeting 2021
Volume 66, Number 1
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session J60: Detectors, Sensors, and Transducers
3:00 PM–6:00 PM,
Tuesday, March 16, 2021
Sponsoring
Unit:
GIMS
Chair: Angela Di Fulvio, University of Illinois at Urbana-Champaign
Abstract: J60.00011 : Advances in organic scintillators for fast and thermal neutron detection*
5:24 PM–6:00 PM
Live
Presenter:
Natalia Zaitseva
(Lawrence Livermore Natl Lab)
Author:
Natalia Zaitseva
(Lawrence Livermore Natl Lab)
Studies conducted at LLNL led to development of new materials, among which are organic crystals and first PSD plastics for fast neutron detection. More advantages have been introduced by 10B and 6Li plastics that can be used for combined detection of both thermal and fast neutrons, offering, in addition, a unique “triple” PSD for signal separation between fast neutrons, thermal neutrons, and gamma-rays. More recent studies have been focused on scaling new compositions with increased performance stability and development of deuterated scintillators that can be used for neutron spectroscopy without time-of-flight assemblies. Among commercially produced materials are large-scale (>10 cm) stilbene crystals grown by the inexpensive solution technique, and different types of PSD plastics which, due to the deployment advantages and ease of fabrication, create a basis for the widespread use of solid-state scintillators as large-volume and low-cost neutron detectors.
*The work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. This work has been supported by the U.S. Department of Energy (NA-22) and DTRA offices, and by the US Department of Homeland Security, DNDO, under competitively awarded IAA HSHQDC-09-X-00743. This support does not constitute an express or implied endorsement on the part of the Government.
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