A NEW TRANSITION BRANCH OF THE 5.2 SEC ISOMER IN 183W

  • During the bombardment of 14.8MeV neutron on natural wolfram samples a γ-ray with energy 291.7keV and halflife 5.17±0.03 sec is observed. From the experimental facts it is assumed that in addition to the two well known transition branches from the decay of 5.2 sec isomer in 138W there exists another 11/2+11/2[615]→5/23/2[512] isomeric (E3) transition. The hindrance factor of this new transition is calculated. It is well cosistent with the general empirical rule of k forbidden isomeric transition.
  • [1] 肖根来等, r射线的多谱分析方法, 3(1985)42.[2] Agda Arma-Chohen, Nucl. Data Sheets, 16(1975), 267.[3] C. M: Lederer etc. Table of Isotopes, (1978), p. 1154.[4] 刘运柞主编, , 常用放射性核素衰变纲图, p, 242.[5] R. S. Halter and E. C. Seltzer CAT-63-60, (1967) .[6] A. J. Poe Phil. Mag., 46(1955),611.[7] W. D. Schmidt-Ott etc. Z. Phys. 162(1961), 329.[8] G J. Gallagher etc. Nucl. Phys., 24(1961), 422.[9] W. Andte9tscheff etc. Atom. Data and Nucl. Data Table, 16(1975), 515.[10] Kai Siegbahp, Alpha-Beta and Gamma-Ray Spectsoscopy, VoI. 2(1965), p. 931.[11] О. Бop, Б. Moттeльcон, Aтомная 3нepzuя, 4(1963), 41.[12] M. E. Bunker etc., Rev. Mod. Phys., 43(1971); 348.[13] R. F. Casten etc., Mat. Fys. Medd. Dan., Vid. Selsk, 38(1972), No: 13.
  • [1] 肖根来等, r射线的多谱分析方法, 3(1985)42.[2] Agda Arma-Chohen, Nucl. Data Sheets, 16(1975), 267.[3] C. M: Lederer etc. Table of Isotopes, (1978), p. 1154.[4] 刘运柞主编, , 常用放射性核素衰变纲图, p, 242.[5] R. S. Halter and E. C. Seltzer CAT-63-60, (1967) .[6] A. J. Poe Phil. Mag., 46(1955),611.[7] W. D. Schmidt-Ott etc. Z. Phys. 162(1961), 329.[8] G J. Gallagher etc. Nucl. Phys., 24(1961), 422.[9] W. Andte9tscheff etc. Atom. Data and Nucl. Data Table, 16(1975), 515.[10] Kai Siegbahp, Alpha-Beta and Gamma-Ray Spectsoscopy, VoI. 2(1965), p. 931.[11] О. Бop, Б. Moттeльcон, Aтомная 3нepzuя, 4(1963), 41.[12] M. E. Bunker etc., Rev. Mod. Phys., 43(1971); 348.[13] R. F. Casten etc., Mat. Fys. Medd. Dan., Vid. Selsk, 38(1972), No: 13.
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GUI Shou-Zao, LIU Jing-Yi, XIAO Gen-Lai and TIAN Jia-Qi. A NEW TRANSITION BRANCH OF THE 5.2 SEC ISOMER IN 183W[J]. Chinese Physics C, 1986, 10(3): 354-357.
GUI Shou-Zao, LIU Jing-Yi, XIAO Gen-Lai and TIAN Jia-Qi. A NEW TRANSITION BRANCH OF THE 5.2 SEC ISOMER IN 183W[J]. Chinese Physics C, 1986, 10(3): 354-357. shu
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A NEW TRANSITION BRANCH OF THE 5.2 SEC ISOMER IN 183W

    Corresponding author: GUI Shou-Zao,

Abstract: During the bombardment of 14.8MeV neutron on natural wolfram samples a γ-ray with energy 291.7keV and halflife 5.17±0.03 sec is observed. From the experimental facts it is assumed that in addition to the two well known transition branches from the decay of 5.2 sec isomer in 138W there exists another 11/2+11/2[615]→5/23/2[512] isomeric (E3) transition. The hindrance factor of this new transition is calculated. It is well cosistent with the general empirical rule of k forbidden isomeric transition.

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