Study on N-4 Nuclear Emulsion Measuring Fission Neutron Spectrum of <sup>238</sup>U Induced by 2.5 MeV Neutron

WEN Wei-ping; LI Guang-wu; WANG Hong-kai

doi:10.7538/yzk.2017.51.02.0230

Atomic Energy Science and Technology > 2017 > 51(2): 230-235. > DOI: 10.7538/yzk.2017.51.02.0230

WEN Wei-ping, LI Guang-wu, WANG Hong-kai. Study on N-4 Nuclear Emulsion Measuring Fission Neutron Spectrum of ²³⁸U Induced by 2.5 MeV Neutron[J]. Atomic Energy Science and Technology, 2017, 51(2): 230-235. DOI: 10.7538/yzk.2017.51.02.0230

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Study on N-4 Nuclear Emulsion Measuring Fission Neutron Spectrum of ²³⁸U Induced by 2.5 MeV Neutron

1.
Science and Technology on Nuclear Data Laboratory, China Institute of Atomic Energy, Beijing 102413, China
2.
College of Physics and Electronic Engineering, Xinxiang University, Xinxiang 453000, China

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Abstract

The prompt fission neutron spectrum of ²³⁸U sample was measured by homemade N-4 nuclear emulsion. Details like the experimental layout and conditions, the track data reading, processing and correction were described. Also the relation of energy-range for recoil protons in the N-4 nuclear emulsion was derived by Monte Carlo simulation and fitting method. The fission neutron spectrum of N-4 nuclear emulsion was obtained, and the spectrum was corrected. The experimental results were compared with those of Maxwell model. The results show that they are in good agreement within the range of uncertainty, and the availability of N-4 nuclear emulsion in the measurement of high-energy segment of the prompt fission neutron spectrum is proved.
- nuclear emulsion,
- recoil proton track,
- energy-range relation,
- prompt fission neutron spectrum

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Study on N-4 Nuclear Emulsion Measuring Fission Neutron Spectrum of 238U Induced by 2.5 MeV Neutron

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Study on N-4 Nuclear Emulsion Measuring Fission Neutron Spectrum of ²³⁸U Induced by 2.5 MeV Neutron