Measurement of K-shell photoelectric cross sections using a direct method
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment(1987)
摘要
K-shell photoelectric cross sections are determined by the direct method at 661.65 keV in Au at 30° and 40° and in Yb, Ta and U at 40°. A high resolution HPGe detector is used to detect both the X-ray and incoherently scattered gamma ray intensities simultaneously. The superiority of the direct method over the indirect method at higher energies is discussed. The results are showing a good agreement with the available theoretical and other experimental values. A close observation shows that the measured values are in a better agreement with the accurate and recently reported data of Scofield.
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关键词
incoherent scatter,high resolution,cross section,gamma ray,direct method
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