Abstract

The K-shell fluorescence yield of Al, Ca, V and Mn has been measured by bombarding thin solid targets of 0.5–4.0μg/cm2 on 6–10μg/cm2 carbon backing with relativistic electrons of 30 and 60 MeV and by simultaneous detection of the x-ray and Auger yield by means of a Si(Li) detector and an electrostatic electron spectrometer, respectively. While the values obtained for25Mn (ωK=0.310−0.020+0.023) and23V(ωK=0.252−0.018+0.020) agree within their accuracy with known experimental and theoretical data, are the values of20Ca (ωK=0.127−0.011+0.013) and13Al(ωK=0.027±0.005) lower than experimental or recommended empirical values.

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