The Evaluation And Application Of Nuclear Decay Data

The Appliance of the applied nuclear technology has become more and more popular in making production in factory and in our daily life. And it requires more and more better nuclear decay data. Table of Isotopes (8th edition) is the most completely compiled nuclear data set published at the present time. It contains the decay schemes, radiation energies, intensity etc. of almost all nuclides. It was publish by John Wiley & Sons, Inc in 1996 and no new edition is published by far. If one needs more information or new evaluated nuclear decay data of some nuclides particularly, he should get the primary nuclear data from the newly published Nuclear Data Sheets or Evaluated Nuclear Structure Data Files directly and to do some special calculation to obtain what he needs.The basic physical theory of the nuclear decay data calculation was discussed in this paper at first. The calculation methods of Q-value, emitted particle intensity normalization factor, emitted particle absolute intensity, gamma ray intensity normalization factor, gamma ray absolute intensity, internal conversion electron energy and absolute intensity, energy and intensity of positron annihilation emission, X-ray energy and emission probability, Auger electron energy and emission probability are given in the paper. The newly established Nuclear Decay Data Evaluation and Calculation System and Nuclear Decay Data Edition and Publication System are also introduced in the paper.The nuclear decay data and decay scheme produced by the method introduced in the paper have the specialties as follows, compared with those in Table of Isotopes (8th edition) and in Nuclear Data Sheets:1. The energy, absolute intensity and HF of the alpha particle are given;2. The average energies, the maximal energies, absolute intensities, total average energy and logft value of beta particle are given;3. Gamma ray absolute intensities are given directly;4. The energies and absolute intensities of the internal conversion electrons of K, L, M etc shells are given;5. The Kα2 Kα1 Kβ X-rays and K-shell and L-shell Auger electron energies andintensities are given;6. The intensities of the gamma ray. internal conversion electron. X-ray, and Auger electron are all absolute intensities:7. Both gamma ray absolute intensity and internal conversion electron intensity aregiven in the decay schemes.The 6 and 7 mentioned above are created and the firstly adopted by us. The data can be directly and conveniently used, do not need being transformed. Thus the innovation will save users much time and labor. It is obviously different than others.During my studying for a master's degree, I did a lot of work for it. I cowrite several books with my colleague, such as China Nuclear Decay Schemes of Radioactive Nuclides for Military Use, Radioactive Isotopes Appliance Handbook, Gamma-ray and X-ray Data of Fission Producing Radioactive Nuclides, Thermal Neutron Reaction Prompt and Delay Gamma-ray Energy and Activation Cross Section Data, etc. I visited Japan Nuclear Data Center for one year and evaluated the nuclear structure data of A=124 mass chain coached by Prof. J. Katakula. I wrote some programs, such as CRODWT and PSCorrect, etc. I also published some articles with my colleagues, such as Data Calculation ofX-Ray and Auger Electron Arising from Nuclear Decay, Internal Conversion Electron Energies and Their Absolute Intensities Calculation, Auger Electron Energies and Their Absolute Intensities Calculations Associated With Internal Conversion Electron Emission, etc.This paper is based on all the work I did during my studying for a master's degree. The calculation approaches and the nuclear decay data edition and publication system had applied within the word of writing China Nuclear Decay Schemes of Radioactive Nuclides for Military Use and the user of the book give a high opinion on it.