Advanced Search
CHEN BAOLIN;ZHOU WEIZHONG;TAN YONGKANG;ZHU LIMING;TANG FANGDONG Shanghai Institute of Metrology. A 4πγ IONIZATION CHAMBER SUBSTANDARD FOR ACTIVITY MEASUREMENTS[J]. Atomic Energy Science and Technology, 1991, 25(1): 25-25. DOI: 10.7538/yzk.1991.25.01.0025
Citation: CHEN BAOLIN;ZHOU WEIZHONG;TAN YONGKANG;ZHU LIMING;TANG FANGDONG Shanghai Institute of Metrology. A 4πγ IONIZATION CHAMBER SUBSTANDARD FOR ACTIVITY MEASUREMENTS[J]. Atomic Energy Science and Technology, 1991, 25(1): 25-25. DOI: 10.7538/yzk.1991.25.01.0025
shu

A 4πγ IONIZATION CHAMBER SUBSTANDARD FOR ACTIVITY MEASUREMENTS

    Graphical Abstract
    • Abstract
  • The structure and performance of the 4 πγ ionization chamber substandardestablished are described. The necessity of selecting source vials in accordance withwall absorption fractions using a ~(125)I needle source which is used as asensitiveprobe is stated. The chamber is calibrated with 26 radionuclides. Theoverall uncertainties (3 σ) of calibration factors are in range of 1.2--4.6%.A efficiency curve of the chamber is derived and it can be used to predict thecalibration factors of those radionuclides for which the chamber isn't calibrated.
    • FullText(HTML)
  • loading
    • References (11)
    • Related Articles

Catalog

    Turn off MathJax
    Article Contents

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return