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Cheifetz, E.; Wolf, A.
Weizmann Inst. of Science, Rehovoth (Israel). Dept. of Nuclear Physics1976
Weizmann Inst. of Science, Rehovoth (Israel). Dept. of Nuclear Physics1976
AbstractAbstract
[en] Spontaneous fission of 252Cf produces very neutron-rich isotopes falling mainly in three interesting regions of the periodic table: a) the A=100-120, Z=38-46 region for which there is evidence of large deformations; b) the isotopes around the double magic 132Sn where simple configurations coupled to the closed shells Z=50, N=82 prevail; c) the region with A=140-150, Z=54-60, where there is a smooth transition from spherical to deformed nuclei. Many isomeric γ-rays with half-lives between 10-3000 nsec were found to be emitted by fragments in regions (a) and (b). In this work γ-factors of isomeric states in fission fragments were measured. Two experiments were carried out. In the first, angular distributions (with respect to the fission axis) of known isomeric γ-rays emitted by stopped fragment were found to be anisotropic, thus showing alignment of the angular momentum. In the second experiment, this alignment was used in a time-different perturbed angular correlation measurement from which g-factors were directly obtained. (B.G.)
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1976; 19 p
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Report
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AbstractAbstract
No abstract available
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Journal Article
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Phys. Rev., C; v. 6(4); p. 1348-1361
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No abstract available
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Physical Review Letters; v. 29(12); p. 805-808
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No abstract available
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Phys. Rev., C; v. 5(6); p. 2041-2060
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Wilhelmy, J.B.; Cheifetz, E.; Jared, R.C.; Thompson, S.G.
California Univ., Berkeley (USA). Lawrence Radiation Lab1971
California Univ., Berkeley (USA). Lawrence Radiation Lab1971
AbstractAbstract
No abstract available
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30 Nov 1971; 66 p
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Report
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AbstractAbstract
No abstract available
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Israel Physical Society, Jerusalem; Bulletin of the Israel Physical Society; v. 22; p. 17; 1976; Israel Physical Society 1976 annual meeting; Haifa, Israel; 11 - 12 Apr 1976; Published in summary form only.
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Miscellaneous
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[en] Spectroscopic measurements of prompt radiations from fission fragments prior to beta decay are discussed. Post beta decay deexcitation is examined for observations with high fission yield, short lived, prompt products. A comparison of the types of results obtained from prompt decay and beta decay is made in an attempt to demonstrate their complementary nature in giving nuclear structure information. Nuclear information obtained from spectroscopy of fission fragment products is summarized for various regions of interest. (14 figures, 2 tables, 113 references) (U.S.)
Original Title
Prompt radiation
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Source
Cerny, J. (ed.); p. 229-276; 1974; Academic Press, Inc; New York
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Book
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AbstractAbstract
No abstract available
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Israel Physical Society, Jerusalem; Bulletin of the Israel Physical Society; v. 22; p. 18; 1976; Israel Physical Society 1976 annual meeting; Haifa, Israel; 11 - 12 Apr 1976; Published in summary form only.
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Miscellaneous
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ANGULAR MOMENTUM, BARIUM ISOTOPES, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, DISTRIBUTION, ELECTROMAGNETIC RADIATION, EVEN-EVEN NUCLEI, GAMMA RADIATION, INTERMEDIATE MASS NUCLEI, IONIZING RADIATIONS, ISOTOPES, MINUTES LIVING RADIOISOTOPES, NUCLEI, PARTICLE PROPERTIES, RADIATIONS, RADIOISOTOPES, SECONDS LIVING RADIOISOTOPES, XENON ISOTOPES
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AbstractAbstract
[en] The number of electrons emitted per impinging ion is known to be very high for hydrogenated B-doped diamond films. However, following ion bombardment the yield of emitted electrons rapidly decreases due to structural and chemical changes induced by the irradiation process. These changes eventually result in negative electron affinity loss and graphitization of the diamond film. Here we report results on ion-induced electron emission (IIEE) from undoped, sub-micron thick and hydrogenated diamond films. We found that the IIEE properties of these films are more stable upon similar bombardment conditions as compared to those of micron and sub-micron thick B-doped films. The enhanced IIEE properties of the sub-micron films are most likely associated with a reduced charging
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S0040609002007964; Copyright (c) 2002 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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AbstractAbstract
No abstract available
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Nuclear Physics. A; v. 201(3); p. 445-448
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