NUCLEAR BOND ENERGY IN THE REGION OF THE 82 PROTON AND 126 NEUTRON MAGIC NUMBERS (in Russian)
Journal Article
·
· Zhur. Eksptl'. i Teoret. Fiz.
OSTI ID:4285297
Measurements of masses of the isotopes of bismuth, lead, thallium, and mercury performed on a mass spectrograph of resolving power of 60,000 to 80,000 are presented. The masses of these isotopes were determined by direct comparison with the masses of tbe corresponding organic compounds. The masses of Pb/sup 206/ Pb/sup 207/, and Pb/sup 208/ isotopes obtained from various doublets are internally consistent. The bond energy of the nuclei- computed from the measured masses of the isotopes confirms the shell structure of the nucleus with a filled shell of 82 protons and 126 neutrons. The difference of the nuclear bond energy for an even and odd number of nucleons in the nucleus and its smoothing out as the shell is filled up can distinctly be seen. After the shell is filled up with Z = 82 and N = 126 the bond energy of the following neutron is greater than the bond energy of the next proton. The energy of two bound neutrons (which yields the Hg/sup 204/ nucleus) is greater than the energy of attachment of two protons in the Pb/sup 204/ nucleus. (tr-auth)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-13-004181
- OSTI ID:
- 4285297
- Journal Information:
- Zhur. Eksptl'. i Teoret. Fiz., Journal Name: Zhur. Eksptl'. i Teoret. Fiz. Vol. Vol: 35
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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