Cross-sections for formation of 178m2Hf and 179m2Hf through reactions on natural hafnium at neutron energy 14.8±0.2 MeV

被引：10
作者：
Luo, Junhua [1 ,2 ]
Tuo, Fei [3 ]
Kong, Xiangzhong [1 ]
机构：
[1] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China
[2] Hexi Univ, Dept Phys Sci & Elect Technol, Zhangye 734000, Gansu, Peoples R China
[3] China CDC, Natl Inst Radiol Protect, Beijing 100088, Peoples R China
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2011年 / 288卷 / 01期
关键词：
(n; x); Reaction; Cross section; Neutrons; Activation technique; Hafnium; EXCITATION-FUNCTIONS; N; ALPHA REACTIONS; THRESHOLD; REGION; RANGE; ISOTOPES; RATIOS; P;
D O I：
10.1007/s10967-010-0963-0
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The cross sections for formation of metastable state of Hf-178 (Hf-178m2, 574.215 keV, 31 y) and Hf-179 (Hf-179m2, 362.55 keV, 25.05 d) through reactions induced by 14.8 +/- A 0.2 MeV neutrons on natural hafnium were measured for the first time. The monoenergetic neutron beam was produced via the H-3(d, n)He-4 reaction on ZF-300-II Intense Neutron Generator at Lanzhou University. Induced gamma activities were measured by a gamma-ray spectrometer with high-purity germanium (HPGe) detector. Measurements were corrected for gamma-ray attenuations, random coincidence (pile-up), dead time and fluctuation of neutron flux. The neutron fluence were determined by the cross section of Nb-93(n, 2n)Nb-92m reaction. The neutron energy in the measurement were by the cross section ratios of Zr-90(n, 2n)Zr89m+g and Nb-93(n, 2n)Nb-92m reactions.
引用
收藏
页码：143 / 148
页数：6
相关论文
共 48 条
  • [1] Nuclear Data Sheets for A=178
    Achterberg, E.
    Capurro, O. A.
    Marti, G. V.
    [J]. NUCLEAR DATA SHEETS, 2009, 110 (07) : 1473 - 1688
  • [2] EXCITATION-FUNCTIONS OF THRESHOLD REACTIONS ON SC-45 AND MN-55 INDUCED BY 6 TO 13 MEV NEUTRONS
    BOSTAN, M
    QAIM, SM
    [J]. PHYSICAL REVIEW C, 1994, 49 (01): : 266 - 271
  • [3] BROWNE E, 1996, TABLE ISOTOPES
  • [4] CINDA-A, 2000, IND LIT COMP FIL MIC
  • [5] CROSS SECTIONS FOR (N,P) AND (N,ALPHA) REACTIONS WITH 14.5 MEV NEUTRONS
    COLEMAN, RF
    HAWKER, BE
    OCONNOR, LP
    PERKIN, JL
    [J]. PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON, 1959, 73 (470): : 215 - 220
  • [6] CORAL M, 2009, NUCL DATA SHEETS, V110, P265
  • [7] EXCITATION-FUNCTIONS AND ISOMERIC CROSS-SECTION RATIOS OF THE CU-63(N,ALPHA) CO-60(M,G), CU-65(N,ALPHA) CO-62(M,G), AND NI-60(N,P) CO-60(M,G) PROCESSES FROM 6 TO 15 MEV
    CSERPAK, F
    SUDAR, S
    CSIKAI, J
    QAIM, SM
    [J]. PHYSICAL REVIEW C, 1994, 49 (03): : 1525 - 1533
  • [8] Curtis L., 1969, INTRO NEUTRON PHYS
  • [9] SOME NEUTRON-ACTIVATION CROSS-SECTIONS IN THE HEAVY MASS REGION AT 14 MEV
    DAS, NL
    RAO, CVS
    RAO, JR
    [J]. ANNALS OF NUCLEAR ENERGY, 1981, 8 (06) : 283 - 286
  • [10] Demekhina N.A., 2001, YAD FIZ, V64, P1879
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