Fig.1 Evolution of reactor and spallation neutron sources around the world[3] (CP1—Chicago Pile 1, CP2—Chicago Pile 2, X10—X-10 Graphite Reactor, NRX—National Research Experimental, MTR—Materials Testing Reactor, NRU—National Research Universal, HFBR—High Flux Beam Reactor, HFIR—High Flux Isotope Reactor, ILL—Institut Laue-Langevin, ZING-P—Spallation Pulsed Neutron Source Prototype, KENS—KEK Neutron Scattering Research Facility, IPNS—Intense Pulsed Neutron Source, LUJAN—Lujan Center at Los Alamos National Laboratory, ISIS—ISIS Neutron and Muon Source, FRM-Ⅱ—The Research Neutron Source Heinz Maier Leibnitz, OPAL—Open Pool Australian Lightwater Reactor, CARR—China Advanced Research Reactor, SNS-FTS—Spallation Neutron Source-First Target Station, JSNS—Japan Spallation Neutron Source, CSNS—Chinese Spallation Neutron Source, ESS—European Spallation Source, SNS-STS—Spallation Neutron Source-Second Target Station)
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