Applications of C7LYC scintillators in fast neutron spectroscopy

Brown, T.; Chowdhury, P.; Doucet, E.; Jackson, E. G.; Lister, C. J.; Mitchell, A. J.; Morse, C.; Rogers, A. M.; Wilson, G. L.; D’Olympia, N.; Devlin, M.; Fotiades, N.; Gomez, J. A.; Mosby, S. M.; Nelson, R. O.

doi:10.1016/j.nima.2018.08.082

Title: Applications of C⁷LYC scintillators in fast neutron spectroscopy

Full Record
Other Related Research

Abstract

Here, the capabilities of ⁷Li-enriched Cs₂⁷LiYCl₆ (C⁷LYC) scintillation detectors for fast neutron spectroscopy are explored in benchmark experiments that exploit its excellent pulse-shape discrimination between neutrons and γ rays, and its unprecedented ≈10% energy resolution for fast neutrons in the few MeV range, obtained through the ³⁵Cl(n,p) reaction. Energy- and angle-resolved elastic and inelastic neutron scattering cross-section measurements of ⁵⁶Fe(n,n’) were performed at Los Alamos National Laboratory with a pulsed white neutron source and an array of 1" x 1" C⁷LYC crystals. The results convincingly establish the utility of this dual n/γ scintillator for fast neutron spectroscopy. Intrinsic efficiency measurements of both 1" x 1" and the first ever 3" x 3" C⁷LYC crystal have been initiated, using mono-energetic fast neutron beams at UMass Lowell generated via the ⁷Li(p,n) reaction. Finally, the spectroscopic capabilities and potential of C⁷LYC are discussed in the context of developing this emerging scintillator for targeted science applications.

Authors:

Brown, T. ^[1]; Chowdhury, P. ^[1]; Doucet, E. ^[1]; Jackson, E. G. ^[1]; Lister, C. J. ^[1]; Mitchell, A. J. ^[1]; Morse, C. ^[1]; Rogers, A. M. ^[1]; Wilson, G. L. ^[1]; D’Olympia, N. ^[2]; Devlin, M. ^[3]; Fotiades, N. ^[3]; Gomez, J. A. ^[3]; Mosby, S. M. ^[3]; Nelson, R. O. ^[3]

Univ. of Massachusetts, Lowell, MA (United States). Dept. of Physics
Passport Systems Inc., Billerica, MA (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Publication Date:: Sat Sep 15 00:00:00 EDT 2018

Research Org.:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Univ. of Massachusetts, Lowell, MA (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP); USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI Identifier:: 1477673

Alternate Identifier(s):: OSTI ID: 1636298

Report Number(s):: LA-UR-18-27738
Journal ID: ISSN 0168-9002

Grant/Contract Number:: AC52-06NA25396; NA0001988; NA0002932; FG02-94ER40848

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: 954; Journal ID: ISSN 0168-9002

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; scintillator; pulse shape discrimination; fast neutron spectroscopy; neutron scattering

Citation Formats


                    Brown, T., Chowdhury, P., Doucet, E., Jackson, E. G., Lister, C. J., Mitchell, A. J., Morse, C., Rogers, A. M., Wilson, G. L., D’Olympia, N., Devlin, M., Fotiades, N., Gomez, J. A., Mosby, S. M., and Nelson, R. O. Applications of C7LYC scintillators in fast neutron spectroscopy.  United States: N. p., 2018. 
Web.  doi:10.1016/j.nima.2018.08.082.

Copy to clipboard


                    Brown, T., Chowdhury, P., Doucet, E., Jackson, E. G., Lister, C. J., Mitchell, A. J., Morse, C., Rogers, A. M., Wilson, G. L., D’Olympia, N., Devlin, M., Fotiades, N., Gomez, J. A., Mosby, S. M., & Nelson, R. O. Applications of C7LYC scintillators in fast neutron spectroscopy.  United States.  https://doi.org/10.1016/j.nima.2018.08.082

Copy to clipboard


                    Brown, T., Chowdhury, P., Doucet, E., Jackson, E. G., Lister, C. J., Mitchell, A. J., Morse, C., Rogers, A. M., Wilson, G. L., D’Olympia, N., Devlin, M., Fotiades, N., Gomez, J. A., Mosby, S. M., and Nelson, R. O. Sat .  
"Applications of C7LYC scintillators in fast neutron spectroscopy".  United States.  https://doi.org/10.1016/j.nima.2018.08.082.  https://www.osti.gov/servlets/purl/1477673.

Copy to clipboard


                    
@article{osti_1477673,

  title        = {Applications of C7LYC scintillators in fast neutron spectroscopy},

  author       = {Brown, T. and Chowdhury, P. and Doucet, E. and Jackson, E. G. and Lister, C. J. and Mitchell, A. J. and Morse, C. and Rogers, A. M. and Wilson, G. L. and D’Olympia, N. and Devlin, M. and Fotiades, N. and Gomez, J. A. and Mosby, S. M. and Nelson, R. O.},

  abstractNote = {Here, the capabilities of 7Li-enriched Cs27LiYCl6 (C7LYC) scintillation detectors for fast neutron spectroscopy are explored in benchmark experiments that exploit its excellent pulse-shape discrimination between neutrons and γ rays, and its unprecedented ≈10% energy resolution for fast neutrons in the few MeV range, obtained through the 35Cl(n,p) reaction. Energy- and angle-resolved elastic and inelastic neutron scattering cross-section measurements of 56Fe(n,n’) were performed at Los Alamos National Laboratory with a pulsed white neutron source and an array of 1" x 1" C7LYC crystals. The results convincingly establish the utility of this dual n/γ scintillator for fast neutron spectroscopy. Intrinsic efficiency measurements of both 1" x 1" and the first ever 3" x 3" C7LYC crystal have been initiated, using mono-energetic fast neutron beams at UMass Lowell generated via the 7Li(p,n) reaction. Finally, the spectroscopic capabilities and potential of C7LYC are discussed in the context of developing this emerging scintillator for targeted science applications.},

  doi          = {10.1016/j.nima.2018.08.082},

  journal      = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},

  number       = ,

  volume       = 954,

  place        = {United States},

  year         = {Sat Sep 15 00:00:00 EDT 2018},

  month        = {Sat Sep 15 00:00:00 EDT 2018}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1016/j.nima.2018.08.082

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 7 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

C$$^{7}$$LYC: A New Scintillator for Fast Neutron Spectroscopy

Journal Article Chowdhury, P. - Acta Physica Polonica. Series B

The scintillator Cs₂LiYCl₆ (CLYC) has emerged as a versatile detector for both gammas and neutrons, with excellent pulse shape discrimination. Originally developed as a thermal neutron counter, the discovery of its unexpected and unprecedented ~10% pulse height resolution for fast neutrons in the few MeV range has prompted studies to benchmark its use in low-energy nuclear science and applications. Since the typical long time-of-flight arms are not needed for achieving good energy resolution, geometrical efficiency can be enhanced by positioning the detectors much closer to the target. We have constructed a 16-element array of 1” × 1”7Li-enriched C⁷LYC, to eliminatemore »« less
https://doi.org/10.5506/aphyspolb.50.339

Full Text Available
Measuring the scintillation decay time for different energy deposited by γ-rays and neutrons in a Cs₂ LiYCl₆ :Ce³⁺ detector

Journal Article Wen, Xianfei ; Enqvist, Andreas - Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

In nuclear safeguards and homeland security applications, it is greatly beneficial to simultaneously detect γ-rays, thermal neutrons, and fast neutrons using a single detector with reasonable pulse shape discrimination capability, energy resolution comparable with or even better than NaI(Tl) detectors, and high detection efficiency. Cs₂LiYCl₆:Ce³⁺ detector (CLYC) scintillation detectors have been proven to be one promising candidate to meet these requirements. In this work, the decay time and fraction of each scintillation component for different energy deposition and incident particle type (γ-ray, thermal neutron, and fast neutron) were investigated based on fitting the PMT anode output with exponential functions. Formore »« less
Cited by 12
https://doi.org/10.1016/j.nima.2017.02.019

Full Text Available
Pulse shape discrimination of Cs₂LiYCl₆:Ce³⁺ detectors at high count rate based on triangular and trapezoidal filters

Journal Article Wen, Xianfei ; Enqvist, Andreas - Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

Cs₂LiYCl₆:Ce³⁺ (CLYC) detectors have demonstrated the capability to simultaneously detect γ-rays and thermal and fast neutrons with medium energy resolution, reasonable detection efficiency, and substantially high pulse shape discrimination performance. In this work, a disadvantage of CLYC detectors is the long scintillation decay times, which causes pulse pile-up at moderate input count rate. Pulse processing algorithms were developed based on triangular and trapezoidal filters to discriminate between neutrons and γ-rays at high count rate. The algorithms were first tested using low-rate data. They exhibit a pulse-shape discrimination performance comparable to that of the charge comparison method, at low rate. Then,more »« less
Cited by 5
https://doi.org/10.1016/j.nima.2017.06.007

Full Text Available
Delayed neutron energy spectra following fast fission of [sup 238]U

Miscellaneous Villani, M F

Delayed neutron energy spectra have been measured for six delay-time intervals following the fast fission of [sup 238]U nuclei. The delay-time intervals span the range 0.17 to 10.2 seconds following initial fission while the measured spectra span neutron energies from 10 keV to 4 MeV. The experiment was performed utilizing the UMass/Lowell 5.5 MV Van de Graff accelerator to produce fast neutrons for inducing fission in a [sup 238]U lined fission chamber. The fission fragments were flushed via a helium jet stream to a well-shielded counting room where they were deposited onto a moving tape (magnetic audio tape) and transferredmore »« less
Novel Deployment of Elpasolites as a Dual Neutron/Gamma-Ray Directional Detector

Thesis/Dissertation Guckes, Amber L.

At a time when upholding national security has never been more important, there exists a need for the advancement of radiation detection technologies. Neutron and photon detectors are essential to fulfilling mission areas including detection and localization of missing, stolen or smuggled radiological or nuclear materials, quantification of the effects of a radiological or nuclear event, and supporting nonproliferation efforts. The aim of this study was to evaluate a new radiation detector based on the scintillation elpasolite compound Cs₂LiYCl₆:Ce (CLYC) for simultaneous measurements of neutron and photon flux and the localization of radiation sources. Previous studies performed on the CLYCmore »« less
https://doi.org/10.2172/1243097

Full Text Available

Similar Records

Title: Applications of C7LYC scintillators in fast neutron spectroscopy

Abstract

Citation Formats

Title: Applications of C⁷LYC scintillators in fast neutron spectroscopy