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Title: Recent developments in deuterated scintillators for neutron measurements at low-energy accelerators

Abstract

Deuterated (2H-based) organic scintillators, unlike conventional -based scintillators can generate pulse-shape gated neutron energy spectra 1 to 30 MeV without need for time-of-flight (ToF). They are especially appropriate for measurements at high-intensity, low-energy accelerators where a pulsed beam is not available. Even when the latter is available, the loss in effective beam intensity combined with the need for suitable long-path ToF measurements can be very inefficient. In contrast, as we demonstrate, arrays of d- benzene scintillators (NE230, BC537, EJ315) and recently xylene-d10 (EJ301D) together with related digital signal processing (DSP) can provide highly efficient neutron energy measurements w/o n-ToF. We also report the recent synthesis and initial testing of crystalline d-stilbene as a neutron detector.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1480622
Alternate Identifier(s):
OSTI ID: 1549836
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 874; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English

Citation Formats

Becchetti, F. D., Raymond, R. S., Torres-Isea, R. O., Di Fulvio, A., Clarke, S. D., Pozzi, S. A., and Febbraro, M. Recent developments in deuterated scintillators for neutron measurements at low-energy accelerators. United States: N. p., 2017. Web. doi:10.1016/j.nima.2017.08.034.
Becchetti, F. D., Raymond, R. S., Torres-Isea, R. O., Di Fulvio, A., Clarke, S. D., Pozzi, S. A., & Febbraro, M. Recent developments in deuterated scintillators for neutron measurements at low-energy accelerators. United States. doi:10.1016/j.nima.2017.08.034.
Becchetti, F. D., Raymond, R. S., Torres-Isea, R. O., Di Fulvio, A., Clarke, S. D., Pozzi, S. A., and Febbraro, M. Fri . "Recent developments in deuterated scintillators for neutron measurements at low-energy accelerators". United States. doi:10.1016/j.nima.2017.08.034. https://www.osti.gov/servlets/purl/1480622.
@article{osti_1480622,
title = {Recent developments in deuterated scintillators for neutron measurements at low-energy accelerators},
author = {Becchetti, F. D. and Raymond, R. S. and Torres-Isea, R. O. and Di Fulvio, A. and Clarke, S. D. and Pozzi, S. A. and Febbraro, M.},
abstractNote = {Deuterated (2H-based) organic scintillators, unlike conventional -based scintillators can generate pulse-shape gated neutron energy spectra 1 to 30 MeV without need for time-of-flight (ToF). They are especially appropriate for measurements at high-intensity, low-energy accelerators where a pulsed beam is not available. Even when the latter is available, the loss in effective beam intensity combined with the need for suitable long-path ToF measurements can be very inefficient. In contrast, as we demonstrate, arrays of d- benzene scintillators (NE230, BC537, EJ315) and recently xylene-d10 (EJ301D) together with related digital signal processing (DSP) can provide highly efficient neutron energy measurements w/o n-ToF. We also report the recent synthesis and initial testing of crystalline d-stilbene as a neutron detector.},
doi = {10.1016/j.nima.2017.08.034},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 874,
place = {United States},
year = {2017},
month = {12}
}

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