Advanced Search
GU DANGCHANG;LIU BEIBEI;CHANG JINYING Southwest Institute of Nuclear Physics and Chemistry. ABSOLUTE MEASUREMENT OF ~(99m)Tc ACTIVITY[J]. Atomic Energy Science and Technology, 1986, 20(3): 266-266. DOI: 10.7538/yzk.1986.20.03.0266
Citation: GU DANGCHANG;LIU BEIBEI;CHANG JINYING Southwest Institute of Nuclear Physics and Chemistry. ABSOLUTE MEASUREMENT OF ~(99m)Tc ACTIVITY[J]. Atomic Energy Science and Technology, 1986, 20(3): 266-266. DOI: 10.7538/yzk.1986.20.03.0266
shu
    Graphical Abstract
    • Abstract
  • The experimental technique and results of ~(99m)Tc absolute activity measurementby 4πβ-γ coincidence method are described. The detection efficiency of ~(99m)Tc γrays (2.12, 140.5 and 142.6 keV) and their internal conversion electrons in 4πβcounter as a function of the VYNS foil thickness is measured. It is obtained thatafter complete absorption of 2.12 keV γ ray by the foils, the contribution fromeach ~(99m)Tc decay to the β in 4πβ counter is 0.1117±0.0005.
    • FullText(HTML)
  • loading
    • References (5)
    • Related Articles

Catalog

    Turn off MathJax
    Article Contents

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return