A Study of the Radioactive Decay of RaD by a Spherical Condenser-Type Spectrometer
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概要
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A spherical condenser-type electrostatic spectrometer was constructed, and the spectrum of radioactive decay of RaD was studied with it. For the well-known internal conversion lines due to the 46.7 kev gamma-ray, we obtained the intensity ratios L1:M:N${=}1:0.23\pm 0.02:0.06\pm 0.01$. In the energy region between 16 and 50 kev, no internal conversion line could be found except those due to the 46.7 kev gamma-ray. Many lines were observed below 16 kev, and most of them were identified as L Auger lines of bismuth. Some of them, i.e., lines at 6.6 or 7.0, 11.0, $15{\sim}16$ kev may be internal conversion lines. The primary beta-ray seems to have its maximum energy at $16{\sim}18$ kev. A tentative decay scheme was proposed to explain the result.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 1953-07-25
著者
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Kobayashi Yoshiyuki
Department Of Applied Chemistry Keio University Hiyoshi
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Kobayashi Yoshiyuki
Department of Physics, Faculty of Science, University of Tokyo
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- Spherical Condenser Type Spectrometer
- A Study of the Radioactive Decay of RaD by a Spherical Condenser-Type Spectrometer
- Auger and Conversion Lines from RaD