Imaging neutron capture cross sections: i-TED proof-of-concept and future prospects based on Machine-Learning techniques
Imaging neutron capture cross sections: i-TED proof-of-concept and future prospects based on Machine-Learning techniques
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中子俘获截面成像：基于机器学习技术的 i-TED 概念验证和未来前景
DOI：
10.1140/epja/s10050-021-00507-7
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
P. vZugec
中科院分区：
文献类型：
--
作者：
V. Babiano;J. Lerendegui;J. Balibrea;L. Caballero;D. Calvo;I. Ladarescu;C. Domingo;F. Calviño;A. Casanovas;A. Tarifeño;V. Alcayne;C. Guerrero;M. A. Mill'an;M. Gonz'alez;M. Barbagallo;O. Aberle;S. Amaducci;J. Andrzejewski;L. Audouin;M. Bacak;S. Bennett;E. Berthoumieux;J. Billowes;D. Bosnar;A. Brown;M. Busso;M. Caamano;M. Calviani;D. Cano;F. Cerutti;E. Chiaveri;N. Colonna;G. Cort'es;M. A. Cort'es;L. Cosentino;S. Cristallo;L. Damone;P. Davies;M. Diakaki;M. Dietz;R. Dressler;Q. Ducasse;E. Dupont;I. Dur'an;Z. Eleme;B. Fern;ez;A. Ferrari;P. Finocchiaro;V. Furman;K. Gobel;R. Garg;A. Gawlik;S. Gilardoni;I. Gonccalves;E. Gonz'alez;F. Gunsing;H. Harada;S. Heinitz;J. Heyse;D. Jenkins;A. Junghans;F. Kappeler;Y. Kadi;A. Kimura;I. Knapová;M. Kokkoris;Y. Kopatch;M. Krtivcka;D. Kurtulgil;C. Lederer;H. Leeb;S. Lonsdale;D. Macina;A. Manna;T. Martinez;A. Masi;C. Massimi;P. Mastinu;M. Mastromarco;E. Maugeri;A. Mazzone;E. Mendoza;A. Mengoni;V. Michalopoulou;P. Milazzo;F. Mingrone;J. Moreno;A. Musumarra;A. Negret;F. Og'allar;A. Oprea;N. Patronis;A. Pavlik;J. Perkowski;L. Persanti;C. Petrone;E. Pirovano;I. Porras;J. Praena;J. Quesada;D. Ramos;T. Rauscher;R. Reifarth;D. Rochman;C. Rubbia;M. Sabat'e;A. Saxena;P. Schillebeeckx;D. Schumann;A. Sekhar;A. Smith;N. Sosnin;P. Sprung;A. Stamatopoulos;G. Tagliente;J. Tain;L. Tassan;T. Thomas;P. Torres;A. Tsinganis;J. Ulrich;S. Urlass;S. Valenta;G. Vannini;V. Variale;P. Vaz;A. Ventura;D. Vescovi;V. Vlachoudis;R. Vlastou;A. Wallner;P. Woods;T. Wright;P. vZugec
I-TED是一种创新的探测系统，它利用康普顿成像技术，在(n，γ\DocumentClass[12pt]{Minimal}\usepackage{amsath}\usepackage{waysym}\usepackage{amsfonts}\usepackage{amsbsy}\usepackage{upgreek}\usepackage{upgreek}\setLength{oddsidemarin}{-69pt}\Begin{Document}$n，\$\end{Document})横截面测量中实现了卓越的信本比。这项工作首次对用于高分辨率飞行时间实验的I-TED设备进行了实验验证，并首次证明了提出的背景抑制的概念。为此，197\DocumentClass[12pt]{Minimum}\usepackage{amsath}\usepackage{wa ysym}\usepackage{amsFonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathsfs}\usepackage{upgreek}\setlong{\oddsidemargin}{-69pt}\Begin{Document}$$^{197}$\end{Document}au(n，γ\DocumentClass[12pt]{Minimal}\Usepackage{amsath}\Usepackage{waysym}\usepackage{amsFonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathsfs}\usepackage{upgreek}\setLong{\oddsidemargin}{-69pt}\Begin{Document}$n，\Gamma$$\end{Document})和56\DocumentClass[12pt]{Minimal}\usepackage{amsath}\usepackage{wa ysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathsfs}\usepackage{upgreek}\setlong{\oddsidemargin}{-69pt}\Begin{Document}$$^{56}$\end{Document(n，γ\DocumentClass[12pt]{Minimum}\usepackage{amsath}\usepackage{waysym}\usepackage{amsFonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathsfs}\usepackage{upgreek}\setlong{\oddsidemargin}{-69pt}\Begin{Document}$n，\Gamma$\end{Document})在CERN n_TOF使用基于三个位置敏感探测器的I-TED演示器进行了研究。两个C6\DocumentClass[12pt]{Minimal}\usepackage{amsath}\usepackage{wa ysym}\usepackage{amsFonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{matrsfs}\usepackage{upgreek}\setLong{\oddsidemargin}{-69pt}\begin{document}$$_6$$\end{document}D6\documentclass[12pt]{minimal}\usepackage{amsath}\usepackage{amssymb}\usepackage{amssymb}\usepackage{amssymts}还使用了matrsfs}\usepackage{upgreek}\setlong{\oddsidemargin}{-69pt}\Begin{Document}$$_6$$\end{Document}检测器来对I-TED的性能进行基准测试。为本研究构建的i-TED原型显示∼\DocumentClass[12pt]{Minimum}\Usepackage{amsath}\Usepackage{amsFonts}\Usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlong{\oddsidemargin}{-69pt}\{Begin Document}$$\sim$$\end{Document}3比最先进的C6\DocumentClass[12pt]{Minimal\usepackage{amsath}\usepackageUsepackage{amssymb}\usepackage{amsbsy}\usepackage{mathsfs}\usepackage{upgreek}\setlong{\oddsidemargin}{-69pt}\begin{document}$$_6$$\end{document}D6\documentclass[12pt]{minimal}\usepackage{amsath}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{matrsbsy}\usepackage{upgreek}\setlong{-69pt}在天体物理感兴趣的10keV中子能区开始$$_6$$\结束{文档}探测器。本文还探讨了最终的I-TED阵列可进一步提高性能的前景，该阵列由20个位置敏感探测器和基于机器学习技术的新分析方法组成。
i-TED is an innovative detection system which exploits Compton imaging techniques to achieve a superior signal-to-background ratio in (n,γ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$n,\gamma $$\end{document}) cross-section measurements using time-of-flight technique. This work presents the first experimental validation of the i-TED apparatus for high-resolution time-of-flight experiments and demonstrates for the first time the concept proposed for background rejection. To this aim, the 197\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{197}$$\end{document}Au(n,γ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$n,\gamma $$\end{document}) and 56\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$^{56}$$\end{document}Fe(n,γ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$n, \gamma $$\end{document}) reactions were studied at CERN n_TOF using an i-TED demonstrator based on three position-sensitive detectors. Two C6\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_6$$\end{document}D6\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_6$$\end{document} detectors were also used to benchmark the performance of i-TED. The i-TED prototype built for this study shows a factor of ∼\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\sim $$\end{document}3 higher detection sensitivity than state-of-the-art C6\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_6$$\end{document}D6\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_6$$\end{document} detectors in the 10 keV neutron-energy region of astrophysical interest. This paper explores also the perspectives of further enhancement in performance attainable with the final i-TED array consisting of twenty position-sensitive detectors and new analysis methodologies based on Machine-Learning techniques.