1999 Vol. 16, No. 1
Display Method:
1999, 16(1): 1-5.
doi: 10.11804/NuclPhysRev.16.01.001
Abstract:
The present status, the framework and some applications of the investigation on the superdeformed nuclear states in the scheme of the interacting boson model are described.
The present status, the framework and some applications of the investigation on the superdeformed nuclear states in the scheme of the interacting boson model are described.
1999, 16(1): 6-10.
doi: 10.11804/NuclPhysRev.16.01.006
Abstract:
The collective backbending effect, F spin mixed symmetry states have been studied for the nuclei with moderate high spins. It is found that there is an additional L(L+3) proportional term in the E2 transition rates in the sdg interacting boson model and solved the long standing problem of reduction of collectivity in the wave function of boson models. The electromagnetic transitions in the spdf interacting boson model have been calculated and compared with existing experimental...
The collective backbending effect, F spin mixed symmetry states have been studied for the nuclei with moderate high spins. It is found that there is an additional L(L+3) proportional term in the E2 transition rates in the sdg interacting boson model and solved the long standing problem of reduction of collectivity in the wave function of boson models. The electromagnetic transitions in the spdf interacting boson model have been calculated and compared with existing experimental...
1999, 16(1): 11-15.
doi: 10.11804/NuclPhysRev.16.01.011
Abstract:
The algebraic expressions for all O(N) O(N-1) reduction factors for (m 1N m 2N … m N ) (1 0 … 0) are given by using the concept of irreducible tensor basis and the properties of irreducible tensor operator.
The algebraic expressions for all O(N) O(N-1) reduction factors for (m 1N m 2N … m N ) (1 0 … 0) are given by using the concept of irreducible tensor basis and the properties of irreducible tensor operator.
1999, 16(1): 16-22.
doi: 10.11804/NuclPhysRev.16.01.016
Abstract:
The experimental research on nuclear structure in Department of Modern Applied Physics, Tsinghua University has been summarized. The main research results in high spin states of nuclear structure, as well as some low spin states, have been reported.
The experimental research on nuclear structure in Department of Modern Applied Physics, Tsinghua University has been summarized. The main research results in high spin states of nuclear structure, as well as some low spin states, have been reported.
1999, 16(1): 23-30.
doi: 10.11804/NuclPhysRev.16.01.023
Abstract:
Through study of the prompt γ rays in spontaneous fission, the octupole deformation in neutron rich Xe, Ba, Ce and La isotopes around Z =56, N =88 region was assigned. The properties of the octupole deformation in these nuclei were also discussed.
Through study of the prompt γ rays in spontaneous fission, the octupole deformation in neutron rich Xe, Ba, Ce and La isotopes around Z =56, N =88 region was assigned. The properties of the octupole deformation in these nuclei were also discussed.
1999, 16(1): 31-36.
doi: 10.11804/NuclPhysRev.16.01.031
Abstract:
The study of the charged particle emission reactions induced by 3～7 MeV fast neutrons is of considerable interest for both nuclear applications and the understanding of basic nuclear problems. For its many merits, twin gridded ionization chamber is used in the studies of (n,α) and (n,p) reactions. As a part of systematic investigation, the (n,α) reactions for some nuclei, such as 40 Ca, 64 Zn, 58 Ni, 54 Fe, 39 K have been studied. Cross sections...
The study of the charged particle emission reactions induced by 3～7 MeV fast neutrons is of considerable interest for both nuclear applications and the understanding of basic nuclear problems. For its many merits, twin gridded ionization chamber is used in the studies of (n,α) and (n,p) reactions. As a part of systematic investigation, the (n,α) reactions for some nuclei, such as 40 Ca, 64 Zn, 58 Ni, 54 Fe, 39 K have been studied. Cross sections...
1999, 16(1): 37-39.
doi: 10.11804/NuclPhysRev.16.01.037
Abstract:
By careful analysis, the parameters of DOMA (Disperse Optical Model Analysis) for some medium and heavy nucleus are determined. These parameters are useful for the evaluation of nuclear data.
By careful analysis, the parameters of DOMA (Disperse Optical Model Analysis) for some medium and heavy nucleus are determined. These parameters are useful for the evaluation of nuclear data.
1999, 16(1): 40-41.
doi: 10.11804/NuclPhysRev.16.01.040
Abstract:
The work for research and application of low energy nuclear reaction theories is introduced.
The work for research and application of low energy nuclear reaction theories is introduced.
1999, 16(1): 42-43.
doi: 10.11804/NuclPhysRev.16.01.042
Abstract:
The amplitudes or form factors of the low discrete levels of 208 Pb are investigated systematically, the neutron direct inelastic scattering cross sections from 12 levels on 208 Pb are calculated.
The amplitudes or form factors of the low discrete levels of 208 Pb are investigated systematically, the neutron direct inelastic scattering cross sections from 12 levels on 208 Pb are calculated.
1999, 16(1): 44-46.
doi: 10.11804/NuclPhysRev.16.01.044
Abstract:
In general quantum case the equal time kinetic hierarchies for the energy moments of the covariant Wigner function were established. The transport and constraint equations for the physical densities which are related to the lower order moments were extracted from the hierarchies, and it is also proved that the higher order moments can be expressed in terms of these lower order moments.
In general quantum case the equal time kinetic hierarchies for the energy moments of the covariant Wigner function were established. The transport and constraint equations for the physical densities which are related to the lower order moments were extracted from the hierarchies, and it is also proved that the higher order moments can be expressed in terms of these lower order moments.
1999, 16(1): 47-53.
doi: 10.11804/NuclPhysRev.16.01.047
Abstract:
The getting of polarized electrons was briefly introduced, that is the source of polarized electrons. The measurement of polarization in future, the application of polarized electrons in atomic and molecular physics, condensed physics, biological physics, nuclear and particle physics were discussed.
The getting of polarized electrons was briefly introduced, that is the source of polarized electrons. The measurement of polarization in future, the application of polarized electrons in atomic and molecular physics, condensed physics, biological physics, nuclear and particle physics were discussed.
1999, 16(1): 54-57.
doi: 10.11804/NuclPhysRev.16.01.054
Abstract:
The significance and development of (e, 2e) scattering by using polarized electrons are shown first, then a polarized (e, 2e) spectrometer under developing is introduced, including its main structure and key characters. An optical electron polarimeter is also proposed.
The significance and development of (e, 2e) scattering by using polarized electrons are shown first, then a polarized (e, 2e) spectrometer under developing is introduced, including its main structure and key characters. An optical electron polarimeter is also proposed.
1999, 16(1): 58-60.
doi: 10.11804/NuclPhysRev.16.01.058
Abstract:
The theory of Compton scattering of polarized photons on polarized electrons, and the principle of Beijing Electron Positron Collider (BEPC) Compton polarimeter are shortly discussed. The energy spectrum, vertical distributions and the intensity of Compton scattering under particular conditions are also calculated.
The theory of Compton scattering of polarized photons on polarized electrons, and the principle of Beijing Electron Positron Collider (BEPC) Compton polarimeter are shortly discussed. The energy spectrum, vertical distributions and the intensity of Compton scattering under particular conditions are also calculated.
1999, 16(1): 61-65.
doi: 10.11804/NuclPhysRev.16.01.061
Abstract:
The status of the study on some new scintillators is summarized, and the results of our researches on the properties and applications of BaF 2 and PbWO 4 crystals are discribed.
The status of the study on some new scintillators is summarized, and the results of our researches on the properties and applications of BaF 2 and PbWO 4 crystals are discribed.
1999, 16(1): 66-68.
doi: 10.11804/NuclPhysRev.16.01.066
Abstract:
The basic principles, important characteristics and recent progress of associated particle imaging were reviewed. Associated particle imaging is position sensitive. It can be used in position sensitive examinations, for instance, hidden explosive inspection in airfield custom examination, drug examination. It has an important perspective in application.
The basic principles, important characteristics and recent progress of associated particle imaging were reviewed. Associated particle imaging is position sensitive. It can be used in position sensitive examinations, for instance, hidden explosive inspection in airfield custom examination, drug examination. It has an important perspective in application.
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