Current status of an optically-segmented single-volume scatter camera for neutron imaging

SVSC collaboration

doi:10.1088/1742-6596/1643/1/012034

Current status of an optically-segmented single-volume scatter camera for neutron imaging

SVSC collaboration

Research output: Contribution to journal › Conference article › peer-review

Abstract

The Single-Volume Scatter Camera (SVSC) approach to kinematic neutron imaging, in which an incident neutron’s direction is reconstructed via multiple neutron-proton scattering events, potentially offers much greater efficiency and portability than current systems. In our first design of an Optically-Segmented (OS) SVSC, the detector consists of an 8×8 array of 5×5×200 mm³ bars of EJ-204 scintillator wrapped in Teflon tape, optically coupled with SensL J-series 6 x 6 mm Silicon Photomultiplier (SiPM) arrays, all inside an aluminum frame that serves as a dark box. The SiPMs are read out using custom (multi-GSPS) waveform sampling electronics. In this work, construction, characterization, and electronics updates are reported. The position, time, and energy resolutions of individual bars were obtained by measuring different scintillators with different reflectors. This work was carried out in parallel at the University of Hawaii and at Sandia National Laboratories and resulted in the preliminary design of the camera. Monte-Carlo simulations using the Geant4 toolkit were carried out for individual scintillator bars, as well as the array setup. A custom analysis using ROOT libraries in C++ simulated the SiPM response from Geant4 photon hits. This analysis framework is under development and will allow for seamless comparisons between experimental and simulated data.

Original language	English
Article number	012034
Journal	Journal of Physics: Conference Series
Volume	1643
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/1643/1/012034
State	Published - Dec 23 2020
Event	27th International Nuclear Physics Conference, INPC 2019 - Glasgow, United Kingdom Duration: Jul 29 2019 → Aug 2 2019

Funding

Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525. Oak Ridge National Laboratory is managed by UT-Battelle LLC for the US Department of Energy under contract DE-AC05-00OR22725. Work supported in part by the Nuclear Science and Security Consortium through the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003180 and carried out at Lawrence Berkeley National Laboratory under Contract No. AC02-05CH11231. Document release number SAND2019-11648 C.

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10.1088/1742-6596/1643/1/012034

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@article{4ad03c2c596441f69dece4961c992b0d,

title = "Current status of an optically-segmented single-volume scatter camera for neutron imaging",

abstract = "The Single-Volume Scatter Camera (SVSC) approach to kinematic neutron imaging, in which an incident neutron{\textquoteright}s direction is reconstructed via multiple neutron-proton scattering events, potentially offers much greater efficiency and portability than current systems. In our first design of an Optically-Segmented (OS) SVSC, the detector consists of an 8×8 array of 5×5×200 mm3 bars of EJ-204 scintillator wrapped in Teflon tape, optically coupled with SensL J-series 6 x 6 mm Silicon Photomultiplier (SiPM) arrays, all inside an aluminum frame that serves as a dark box. The SiPMs are read out using custom (multi-GSPS) waveform sampling electronics. In this work, construction, characterization, and electronics updates are reported. The position, time, and energy resolutions of individual bars were obtained by measuring different scintillators with different reflectors. This work was carried out in parallel at the University of Hawaii and at Sandia National Laboratories and resulted in the preliminary design of the camera. Monte-Carlo simulations using the Geant4 toolkit were carried out for individual scintillator bars, as well as the array setup. A custom analysis using ROOT libraries in C++ simulated the SiPM response from Geant4 photon hits. This analysis framework is under development and will allow for seamless comparisons between experimental and simulated data.",

author = "{SVSC collaboration} and A. Tellez-Galindo and Brown, {J. A.} and E. Brubaker and B. Cabrera-Palmer and J. Carlson and R. Dorrill and A. Druetzler and J. Elam and M. Febbraro and P. Feng and M. Folsom and A. Galino-Tellez and Goldblum, {B. L.} and P. Hausladen and N. Kaneshige and K. Keefe and Laplace, {T. A.} and Learned, {J. G.} and A. Mane and Manfredi, {J. J.} and P. Marleau and J. Mattingly and M. Mishra and A. Moustafa and J. Nattress and K. Nishimura and J. Steele and M. Sweany and K. Weinfurther and K. Ziock",

note = "Publisher Copyright: {\textcopyright} 2021 Institute of Physics Publishing. All rights reserved.; 27th International Nuclear Physics Conference, INPC 2019 ; Conference date: 29-07-2019 Through 02-08-2019",

year = "2020",

month = dec,

day = "23",

doi = "10.1088/1742-6596/1643/1/012034",

language = "English",

volume = "1643",

journal = "Journal of Physics: Conference Series",

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T1 - Current status of an optically-segmented single-volume scatter camera for neutron imaging

AU - SVSC collaboration

AU - Tellez-Galindo, A.

AU - Brown, J. A.

AU - Brubaker, E.

AU - Cabrera-Palmer, B.

AU - Carlson, J.

AU - Dorrill, R.

AU - Druetzler, A.

AU - Elam, J.

AU - Febbraro, M.

AU - Feng, P.

AU - Folsom, M.

AU - Galino-Tellez, A.

AU - Goldblum, B. L.

AU - Hausladen, P.

AU - Kaneshige, N.

AU - Keefe, K.

AU - Laplace, T. A.

AU - Learned, J. G.

AU - Mane, A.

AU - Manfredi, J. J.

AU - Marleau, P.

AU - Mattingly, J.

AU - Mishra, M.

AU - Moustafa, A.

AU - Nattress, J.

AU - Nishimura, K.

AU - Steele, J.

AU - Sweany, M.

AU - Weinfurther, K.

AU - Ziock, K.

PY - 2020/12/23

Y1 - 2020/12/23

N2 - The Single-Volume Scatter Camera (SVSC) approach to kinematic neutron imaging, in which an incident neutron’s direction is reconstructed via multiple neutron-proton scattering events, potentially offers much greater efficiency and portability than current systems. In our first design of an Optically-Segmented (OS) SVSC, the detector consists of an 8×8 array of 5×5×200 mm3 bars of EJ-204 scintillator wrapped in Teflon tape, optically coupled with SensL J-series 6 x 6 mm Silicon Photomultiplier (SiPM) arrays, all inside an aluminum frame that serves as a dark box. The SiPMs are read out using custom (multi-GSPS) waveform sampling electronics. In this work, construction, characterization, and electronics updates are reported. The position, time, and energy resolutions of individual bars were obtained by measuring different scintillators with different reflectors. This work was carried out in parallel at the University of Hawaii and at Sandia National Laboratories and resulted in the preliminary design of the camera. Monte-Carlo simulations using the Geant4 toolkit were carried out for individual scintillator bars, as well as the array setup. A custom analysis using ROOT libraries in C++ simulated the SiPM response from Geant4 photon hits. This analysis framework is under development and will allow for seamless comparisons between experimental and simulated data.

AB - The Single-Volume Scatter Camera (SVSC) approach to kinematic neutron imaging, in which an incident neutron’s direction is reconstructed via multiple neutron-proton scattering events, potentially offers much greater efficiency and portability than current systems. In our first design of an Optically-Segmented (OS) SVSC, the detector consists of an 8×8 array of 5×5×200 mm3 bars of EJ-204 scintillator wrapped in Teflon tape, optically coupled with SensL J-series 6 x 6 mm Silicon Photomultiplier (SiPM) arrays, all inside an aluminum frame that serves as a dark box. The SiPMs are read out using custom (multi-GSPS) waveform sampling electronics. In this work, construction, characterization, and electronics updates are reported. The position, time, and energy resolutions of individual bars were obtained by measuring different scintillators with different reflectors. This work was carried out in parallel at the University of Hawaii and at Sandia National Laboratories and resulted in the preliminary design of the camera. Monte-Carlo simulations using the Geant4 toolkit were carried out for individual scintillator bars, as well as the array setup. A custom analysis using ROOT libraries in C++ simulated the SiPM response from Geant4 photon hits. This analysis framework is under development and will allow for seamless comparisons between experimental and simulated data.

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U2 - 10.1088/1742-6596/1643/1/012034

DO - 10.1088/1742-6596/1643/1/012034

M3 - Conference article

AN - SCOPUS:85104892188

SN - 1742-6588

VL - 1643

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012034

T2 - 27th International Nuclear Physics Conference, INPC 2019

Y2 - 29 July 2019 through 2 August 2019

ER -

Current status of an optically-segmented single-volume scatter camera for neutron imaging

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