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With the development of the Accelerator-Driver-System (ADS) for transmutation of nuclear waste or energy production, the studies of the spallation reaction have recently been made of various application. For example, projects for intense neutron sources based on proton incident spallation reaction have been proposed in Europe, the USA and Japan. Many experimental groups have performed the proton-induced experimental measurement, Meier and Amian both measured the neutron production double di erential cross section of lead by 256 and 800 MeV protons in 1992[1, 2]. The methods of two experiments are time of fight, and detectors of two experiments both are scintillators. The data of neutron production double differential cross section can be retrieved from internet as form of EXFOR.
With the development of the Accelerator-Driver-System (ADS) for transmutation of nuclear waste or energy production, the studies of the spallation reaction have recently been made of various applications. For example, projects for intense neutron sources based on proton incident spallation reaction have been proposed in Europe, the USA and Japan. Many experimental groups have performed the proton-induced experimental measurement, Meier and Amian both measured the neutron production double di erential cross section of the lead by 256 and 800 MeV protons in 1992 [1, 2 The methods of two experiments are time of fight, and detectors of two experiments both are scintillators. The data of neutron production double differential cross section can be retrieved from internet as form of EXFOR.