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AbstractAbstract
No abstract available
Source
Israel Atomic Energy Commission, Tel Aviv; p. 252-253; Jul 1982; p. 252-253; Published in summary form only.
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AbstractAbstract
No abstract available
Primary Subject
Source
Israel Atomic Energy Commission, Tel Aviv; p. 173-174; Apr 1980; p. 173-174; Published in summary form only.
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Report
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Gayer, A.; Fraenkel, Z.
Weizmann Inst. of Science, Rehovoth (Israel)1977
Weizmann Inst. of Science, Rehovoth (Israel)1977
AbstractAbstract
[en] Prompt neutron energy distributions were measured at 0 deg and 90 deg with respect to the fission axis, in correlation with the mass-energy distribution of the fragments, for the fission of 226Ra induced by 12 MeV protons. The average number and average kinetic energy of prefission and postfission neutrons were obtained as a function of fragment mass and total kinetic energy. The average number of prefission neutrons emitted is 0.33+-0.15 n/fission (this includes also contributions from scission neutrons). By comparing this result with calculations of the average number of 'true' prefission neutrons, it was found that the number of 'true' prefission neutrons is zero. The average number of postfission neutrons emitted from both fragments is 3,20+-0.20 with an average kinetic energy of 1.33+-0.07 MeV. The dependence of the number of postfission neutrons on the fragment mass can be interpreted as a combination of a saw-tooth structure for the asymmetric mass division and a linearly increasing function for the symmetric mass division. (author)
Primary Subject
Source
1977; 42 p; 16 figs.
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Report
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Country of publication
ALPHA DECAY RADIOISOTOPES, BARYON REACTIONS, BARYONS, BEAMS, CATIONS, CHARGED PARTICLES, ELEMENTARY PARTICLES, ENERGY RANGE, EVEN-EVEN NUCLEI, FERMIONS, FISSION NEUTRONS, HADRON REACTIONS, HADRONS, HEAVY NUCLEI, HYDROGEN IONS, HYDROGEN IONS 1 PLUS, IONS, ISOTOPES, MEV RANGE, NEUTRONS, NUCLEAR REACTIONS, NUCLEI, NUCLEON BEAMS, NUCLEON REACTIONS, NUCLEONS, PARTICLE BEAMS, RADIOISOTOPES, RADIUM ISOTOPES, SPECTRA, TARGETS, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
Gayer, A.; Fraenkel, Z.
Weizmann Inst. of Science, Rehovoth (Israel)1977
Weizmann Inst. of Science, Rehovoth (Israel)1977
AbstractAbstract
[en] The total energy associated with the emission of prompt γ-rays in fission of 226Ra induced by 12 MeV protons was measured in correlation with the fragment mass and kinetic energy. The dependence of the average total γ-ray energy on fragment mass and total kinetic energy resembles the corresponding dependence of the average number of neutrons. Using these results and the results for the average number of neutrons, the excitation energy of the fragments at the scission point was calculated. The results support the view that the scission-point configuration for the symmetric fission mode is more elongated than that for the asymmetric mode. (B.G.)
Primary Subject
Source
1977; 23 p; 8 figs.; 14 refs.
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Report
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Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Primary Subject
Source
Israel Atomic Energy Commission, Tel Aviv; p. 149-150; Jul 1981; p. 149-150; Published in summary form only.
Record Type
Report
Report Number
Country of publication
ACTINIDE NUCLEI, ALKALI METAL COMPOUNDS, ALPHA DECAY RADIOISOTOPES, AMERICIUM ISOTOPES, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, BROMIDES, BROMINE COMPOUNDS, CHLORIDES, CHLORINE COMPOUNDS, DAYS LIVING RADIOISOTOPES, DISPERSIONS, ELECTRON CAPTURE RADIOISOTOPES, HALIDES, HALOGEN COMPOUNDS, HEAVY NUCLEI, HOMOGENEOUS MIXTURES, IRIDIUM ISOTOPES, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MINUTES LIVING RADIOISOTOPES, MIXTURES, NUCLEI, ODD-EVEN NUCLEI, ODD-ODD NUCLEI, PHYSICAL PROPERTIES, POTASSIUM COMPOUNDS, RADIATION SOURCES, RADIOISOTOPES, SCATTERING, SODIUM COMPOUNDS, SOLUTIONS, YEARS LIVING RADIOISOTOPES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Primary Subject
Source
Israel Atomic Energy Commission, Tel Aviv; p. 144-145; Jul 1981; p. 144-145; Published in summary form only.
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Report
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AbstractAbstract
No abstract available
Primary Subject
Source
Israel Atomic Energy Commission, Tel Aviv; p. 307-308; Apr 1980; p. 307-308; Published in summary form only.
Record Type
Report
Report Number
Country of publication
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] The total energy associated with the emission of prompt γ rays in fission of 226 Ra induced by 12 MeV protons was measured in correlation with the fragment mass and kinetic energy. The dependence of the average total γ-ray energy on fragment mass and total kinetic energy resembles the corresponding dependence of the average number of neutrons. Using these results and the results for the average number of neutrons, we calculated the excitation energy of the fragments at the scission point. The results support the view that the scission-point configuration for the symmetric fission mode is more elongated than that for the asymmetric mode
Primary Subject
Record Type
Journal Article
Journal
Phys. Rev., C; v. 16(3); p. 1077-1081
Country of publication
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AbstractAbstract
[en] Published in summary form only
Source
Israel Atomic Energy Commission, Tel Aviv; 396 p; Aug 1988; p. 320-321
Record Type
Report
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Gavron, A.; Gayer, A.; Boissevain, J.
Los Alamos National Lab., NM (USA); Strasbourg-1 Univ., 67 (France); Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany, F.R.); Oak Ridge National Lab., TN (USA); Georgia State Univ., Atlanta (USA)1986
Los Alamos National Lab., NM (USA); Strasbourg-1 Univ., 67 (France); Max-Planck-Institut fuer Kernphysik, Heidelberg (Germany, F.R.); Oak Ridge National Lab., TN (USA); Georgia State Univ., Atlanta (USA)1986
AbstractAbstract
[en] Neutron emission in the 158Er composite system is studied in order to investigate particle emission with energy spectrum and angular distribution in excess of statistical model predictions. Data are analyzed using a modified statistical model which incorporates effects due to nuclear dissipation, and also calculates neutron emission during the descent from the saddle to the scission point. Calculations consider the Kramers effect and the Transient effect. It is concluded that a detailed interpretation of enhanced neutron emission preceding fission in compound nucleus reactions is possible, and that an upper limit may be set on the reduced nuclear dissipation coefficient. 5 refs., 2 figs
Primary Subject
Source
1986; 4 p; 4. winter workshop on nuclear dynamics; Copper Mountain, CO (USA); 24-28 Feb 1986; Available from NTIS, PC A02/MF A01; 1 as DE86008241; Portions of this document are illegible in microfiche products.
Record Type
Report
Literature Type
Conference; Numerical Data
Report Number
Country of publication
BETA DECAY RADIOISOTOPES, BETA-PLUS DECAY RADIOISOTOPES, DATA, ELECTRON CAPTURE RADIOISOTOPES, EMISSION, ERBIUM ISOTOPES, EVEN-EVEN NUCLEI, HOURS LIVING RADIOISOTOPES, INFORMATION, INTERMEDIATE MASS NUCLEI, ISOTOPES, MATHEMATICAL MODELS, NUCLEAR REACTIONS, NUCLEI, NUMERICAL DATA, RADIOISOTOPES, RARE EARTH NUCLEI
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
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