1997 Vol. 14, No. 4
Display Method:
1997, 14(4): 199-206.
doi: 10.11804/NuclPhysRev.14.04.199
Abstract:
The experiments of the EMC effect,nuclear shadowing effect,nuclear DrellYanprocess and J/ψ production related to the quarkgluon distributions in nuclei and the theoretical models explaining them are briefly reviewed.
The experiments of the EMC effect,nuclear shadowing effect,nuclear DrellYanprocess and J/ψ production related to the quarkgluon distributions in nuclei and the theoretical models explaining them are briefly reviewed.
1997, 14(4): 207-212.
doi: 10.11804/NuclPhysRev.14.04.207
Abstract:
The present status of the dynamics study for heavy ion induced fission reaction includesing the dynamical fission width,the fission time scale,the temperature and deformation dependence of the nuclear viscosity and the methods of the extracting viscosity from fission experiments induced by heavy ion reactions is reviewed.
The present status of the dynamics study for heavy ion induced fission reaction includesing the dynamical fission width,the fission time scale,the temperature and deformation dependence of the nuclear viscosity and the methods of the extracting viscosity from fission experiments induced by heavy ion reactions is reviewed.
1997, 14(4): 213-217.
doi: 10.11804/NuclPhysRev.14.04.213
Abstract:
The recent studies in our group on the properties of nuclei at extreme conditions,i.e.nuclei at high densities and high temperatures,their possible liquidgas phase transitions and the multifragmentation are reviewed.
The recent studies in our group on the properties of nuclei at extreme conditions,i.e.nuclei at high densities and high temperatures,their possible liquidgas phase transitions and the multifragmentation are reviewed.
1997, 14(4): 218-221.
doi: 10.11804/NuclPhysRev.14.04.218
Abstract:
High-spinstates in 79Kr were populated via the fusion evaporation reaction 55Mn (30Si,αpn)at 130 MeV.Promptγ γγcharged particle coincidences were measured by using the GASP array in conjunction with the ΔE×E Si(Au) charged particle ball.Asuperdeformed band consisting of 8 γray transitions with an intensity of (2.7±0.3)% has been indentified in 79Kr.The dynamic moment of inertia for the band is nearly constant at approxately 22ñ2/MeV below arotational frequency of 0.95 MeV...
High-spinstates in 79Kr were populated via the fusion evaporation reaction 55Mn (30Si,αpn)at 130 MeV.Promptγ γγcharged particle coincidences were measured by using the GASP array in conjunction with the ΔE×E Si(Au) charged particle ball.Asuperdeformed band consisting of 8 γray transitions with an intensity of (2.7±0.3)% has been indentified in 79Kr.The dynamic moment of inertia for the band is nearly constant at approxately 22ñ2/MeV below arotational frequency of 0.95 MeV...
1997, 14(4): 222-226.
doi: 10.11804/NuclPhysRev.14.04.222
Abstract:
Can nucleus consists only of nonstrange nucleons(strangeness quantum number S=0)?Recent theoretical investigations suggest that in addition to known hypernuclei with S=-1,-2,there is exsiting possibility to produce multistrange nuclear systems with S≤-3,which may be conventional bound sysytems made up of A baryons ( nucleons and hyperons) or more deeply bound manybody systems consisting of 3 A quarks(u,d,s quarks) which are confined in a“bag”.These systems are underway or planned experimentaly.
Can nucleus consists only of nonstrange nucleons(strangeness quantum number S=0)?Recent theoretical investigations suggest that in addition to known hypernuclei with S=-1,-2,there is exsiting possibility to produce multistrange nuclear systems with S≤-3,which may be conventional bound sysytems made up of A baryons ( nucleons and hyperons) or more deeply bound manybody systems consisting of 3 A quarks(u,d,s quarks) which are confined in a“bag”.These systems are underway or planned experimentaly.
1997, 14(4): 227-234.
doi: 10.11804/NuclPhysRev.14.04.227
Abstract:
Several Radioactive Ion Beam (RIB) lines are briefly introduced in this paper, and the main frontier fields of RIB physics are reviewed.In the last section,the developing trends of RIB setup are prospected.
Several Radioactive Ion Beam (RIB) lines are briefly introduced in this paper, and the main frontier fields of RIB physics are reviewed.In the last section,the developing trends of RIB setup are prospected.
1997, 14(4): 235-238.
doi: 10.11804/NuclPhysRev.14.04.235
Abstract:
Based on the simple modelling calculation,the multiplicity and angular distribution of evaporated fragments from both projectile and target spectators in high energy nucleus-nucleus collisions are described.
Based on the simple modelling calculation,the multiplicity and angular distribution of evaporated fragments from both projectile and target spectators in high energy nucleus-nucleus collisions are described.
1997, 14(4): 239-242.
doi: 10.11804/NuclPhysRev.14.04.239
Abstract:
A Schottky precise mass spectroscope in lightmedium and in heavier nuclei with the mass resolution of Δm/m=5×10-6 or 5×10-7, respectively,has been successfully built up and operated well at ESR ( Experimental Storage Ring cooled by electron beam) in G SI,the leading nuclear research institute.The spectroscope is anonstop of the beam type with quite sensitive,even one nucleus can be measured,setup that is a beam diagnosis relia ble instrument for the cooling beam in ESR...
A Schottky precise mass spectroscope in lightmedium and in heavier nuclei with the mass resolution of Δm/m=5×10-6 or 5×10-7, respectively,has been successfully built up and operated well at ESR ( Experimental Storage Ring cooled by electron beam) in G SI,the leading nuclear research institute.The spectroscope is anonstop of the beam type with quite sensitive,even one nucleus can be measured,setup that is a beam diagnosis relia ble instrument for the cooling beam in ESR...
1997, 14(4): 243-246.
doi: 10.11804/NuclPhysRev.14.04.243
Abstract:
Threedimensional dose shaping methods in heavy-ion therapy facilities,HI MAC and HITAG are introduced.A new tumor irradiation pattern with heavyion beam which is being designed is analyzed.It aims at choosing suitable threedimensional dose shaping planning for heavyion beam supplied by HIRFL and the proposed HIRFL-CSR.
Threedimensional dose shaping methods in heavy-ion therapy facilities,HI MAC and HITAG are introduced.A new tumor irradiation pattern with heavyion beam which is being designed is analyzed.It aims at choosing suitable threedimensional dose shaping planning for heavyion beam supplied by HIRFL and the proposed HIRFL-CSR.
1997, 14(4): 247-250.
doi: 10.11804/NuclPhysRev.14.04.247
Abstract:
Based on the fifth workshop on heavy charged particles in biology and medicine and the 10 th international congress of radiation research,the biological effects of heavy ions and biophysical models of heavy ions are discussed.
Based on the fifth workshop on heavy charged particles in biology and medicine and the 10 th international congress of radiation research,the biological effects of heavy ions and biophysical models of heavy ions are discussed.
1997, 14(4): 251-258.
doi: 10.11804/NuclPhysRev.14.04.251
Abstract:
The fundamentals of transmutation of long-lived nuclear power radiowaste and the development aspects of different countries in this field are presented.There have been more than twenty years′history since the first work comes out and the field appears very active after nineties.The situation of China and future prospects in the field are also introduced.
The fundamentals of transmutation of long-lived nuclear power radiowaste and the development aspects of different countries in this field are presented.There have been more than twenty years′history since the first work comes out and the field appears very active after nineties.The situation of China and future prospects in the field are also introduced.
1997, 14(4): 259-263.
doi: 10.11804/NuclPhysRev.14.04.259
Abstract:
The 69 groups constants of Hin ZrH,166Er and 167Er generated by NJOY and GASKET codes are inserted into WIMS nuclear data library WIMSCNDC and WIMSNINT libraries used on RTIGA rector calculation are obtainedIn order to check WIMSCNDC and WIMSNINT libraries,the scattering crosssection is compared with that in WIMSIJS library.The group constant,K->∞ and temperature coefficient are calculated by using WIMSC NDC,WIMSNINT and WIMSIJS.The results show the both libraries are...
The 69 groups constants of Hin ZrH,166Er and 167Er generated by NJOY and GASKET codes are inserted into WIMS nuclear data library WIMSCNDC and WIMSNINT libraries used on RTIGA rector calculation are obtainedIn order to check WIMSCNDC and WIMSNINT libraries,the scattering crosssection is compared with that in WIMSIJS library.The group constant,K->∞ and temperature coefficient are calculated by using WIMSC NDC,WIMSNINT and WIMSIJS.The results show the both libraries are...
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