NUCLEAR EXCITATION BY ELECTRON TRANSITION

被引:0
|
作者
Dzyublik, A. Ya. [1 ]
机构
[1] Natl Acad Sci Ukraine, Inst Nucl Res, 47 Prosp Nauky, UA-03680 Kiev, Ukraine
来源
UKRAINIAN JOURNAL OF PHYSICS | 2013年 / 58卷 / 07期
关键词
nuclear isomers; Hf; NEET; induced nuclear decay; x-rays;
D O I
10.15407/ujpe58.07.0618
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A theory of the nuclear excitation by an electron transition (NEET) induced by x-rays is developed on the basis of the strict collision theory. All stages of the process are considered, including the formation of a hole in an inner electronic shell, its decay leading to the excitation of the nucleus, as well as the subsequent filling of the upper level vacancy and the deexcitation of the nucleus. The cross sections are calculated for NEET and the photoabsorption of x-rays near the absorption edge. The results agree with the data of Kishimoto et al. for NEET on Au-197. In addition, we discuss the NEET mechanism of triggering of the 31-year isomer Hf-178(m2) via an intermediate level induced by x-rays. We have shown that the 2% decay acceleration of this isomer declared by Collins et al. is realistic if the nucleus attributes a triaxial shape in the intermediate state, and there exists an additional rotational band with the 13(-) level.
引用
收藏
页码:618 / 627
页数:10
相关论文
共 50 条
  • [1] NUCLEAR-EXCITATION BY ELECTRON TRANSITION (NEET)
    OTOZAI, K
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1979, (APR): : 11 - 11
  • [2] CALCULATION OF NUCLEAR-EXCITATION IN AN ELECTRON TRANSITION
    PISK, K
    KALIMAN, Z
    LOGAN, BA
    NUCLEAR PHYSICS A, 1989, 504 (01) : 103 - 108
  • [3] NUCLEAR EXCITATION BY ELECTRON TRANSITION IN OS-189
    OTOZAI, K
    ARAKAWA, R
    SAITO, T
    NUCLEAR PHYSICS A, 1978, 297 (01) : 97 - 104
  • [4] Nuclear Excitation by Two-Photon Electron Transition
    Volotka, A. V.
    Surzhykov, A.
    Trotsenko, S.
    Plunien, G.
    Stoehlker, Th.
    Fritzsche, S.
    PHYSICAL REVIEW LETTERS, 2016, 117 (24)
  • [5] Probability of nuclear excitation by electron transition in Os atoms
    Aoki, K
    Hosono, K
    Tanimoto, K
    Terasawa, M
    Yamaoka, H
    Tosaki, M
    Ito, Y
    Vlaicu, AM
    Taniguchi, K
    Tsuji, J
    PHYSICAL REVIEW C, 2001, 64 (04): : 6
  • [6] A NEW LOOK AT NUCLEAR-EXCITATION IN AN ELECTRON TRANSITION
    LJUBICIC, A
    KEKEZ, D
    LOGAN, BA
    PHYSICS LETTERS B, 1991, 272 (1-2) : 1 - 4
  • [7] Dependence of the nuclear excitation by electron transition on the decay rate
    Sumi, Y
    Tanaka, S
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2000, 39 (4A): : 1894 - 1897
  • [8] Photo-Induced Nuclear Excitation by Electron Transition
    Dzyublik, A. Ya.
    JETP LETTERS, 2011, 93 (09) : 489 - 494
  • [9] Photo-induced nuclear excitation by electron transition
    A. Ya. Dzyublik
    JETP Letters, 2011, 93 : 489 - 494
  • [10] PROBABILITY AND SELECTION RULE FOR NUCLEAR-EXCITATION BY ELECTRON TRANSITION
    HO, YK
    ZHANG, BH
    YUAN, ZS
    PHYSICAL REVIEW C, 1991, 44 (05): : 1910 - 1914