2007 Vol. 24, No. 3
Display Method:
2007, 24(3): 190-194.
doi: 10.11804/NuclPhysRev.24.03.190
Abstract:
Considering the dependence on angular momentum， the fission barriers of superheavy nuclei 259Db have been calculated. The survival probability for 258Rf， 259Db，266Hs，267Mt compound and its relation with angular momentum have been estimated. The neutron emission width， the fission width and the realization probability for one neutron emission and their relation with excitation energy and angular momentum are also presented.
Considering the dependence on angular momentum， the fission barriers of superheavy nuclei 259Db have been calculated. The survival probability for 258Rf， 259Db，266Hs，267Mt compound and its relation with angular momentum have been estimated. The neutron emission width， the fission width and the realization probability for one neutron emission and their relation with excitation energy and angular momentum are also presented.
2007, 24(3): 218-223.
doi: 10.11804/NuclPhysRev.24.03.218
Abstract:
The advancements and achieves in nuclear physics enormously improve the developments of medicine and its correlation disciplines, provide the brandnew theory, the modern diagnoses, the treat methods and instruments for the medical research and practice. In this review the applications of nuclear physics in basic, clinical and preventive medicines are summarized.
The advancements and achieves in nuclear physics enormously improve the developments of medicine and its correlation disciplines, provide the brandnew theory, the modern diagnoses, the treat methods and instruments for the medical research and practice. In this review the applications of nuclear physics in basic, clinical and preventive medicines are summarized.
2007, 24(3): 224-227.
doi: 10.11804/NuclPhysRev.24.03.224
Abstract:
MAPK signal transduction pathways play crucial roles in the radiation responses of cells. Four MAPK pathways， ERK， JNK， P38 MAPK and big MAPK pathway induce different effects in the radiation exposed cells. Their corresponding regulations foreordain the cells after exposure. This review describes these four MAPK pathways in radiation responses and discusses their functions in radiation responses respectively.
MAPK signal transduction pathways play crucial roles in the radiation responses of cells. Four MAPK pathways， ERK， JNK， P38 MAPK and big MAPK pathway induce different effects in the radiation exposed cells. Their corresponding regulations foreordain the cells after exposure. This review describes these four MAPK pathways in radiation responses and discusses their functions in radiation responses respectively.
2007, 24(3): 228-233.
doi: 10.11804/NuclPhysRev.24.03.228
Abstract:
At present, cell response to low dose radiation is attracting growing interests all over the world. Hyperradiosensitivity (HRS) and increased radioresistance (IRR) were introduced in this paper. This phenomenon means that an excess cell killing per unit dose appears at about 0.1 Gy (HRS) and then the cell radiation sensitivity increases with increasing dose (IRR). When the dose outstrips 1 Gy, the cell surviving fraction coincides with the value predicted by the commonly accepted linearquadratic (LQ) model. We further reviewed the progress to date in the study of low dose HRS, especially the possible molecular mechanisms underlying HRS/IRR and the relationship between HRS/IRR and linear energy transfer (LET). An initial insight into the clinical application of HRS/IRR in tumor radiotherapy was presented as well.Moreover, several topics concerning the HRS/IRR investigation, which deserved to be reinforced, were put forward.
At present, cell response to low dose radiation is attracting growing interests all over the world. Hyperradiosensitivity (HRS) and increased radioresistance (IRR) were introduced in this paper. This phenomenon means that an excess cell killing per unit dose appears at about 0.1 Gy (HRS) and then the cell radiation sensitivity increases with increasing dose (IRR). When the dose outstrips 1 Gy, the cell surviving fraction coincides with the value predicted by the commonly accepted linearquadratic (LQ) model. We further reviewed the progress to date in the study of low dose HRS, especially the possible molecular mechanisms underlying HRS/IRR and the relationship between HRS/IRR and linear energy transfer (LET). An initial insight into the clinical application of HRS/IRR in tumor radiotherapy was presented as well.Moreover, several topics concerning the HRS/IRR investigation, which deserved to be reinforced, were put forward.
2007, 24(3): 234-237.
doi: 10.11804/NuclPhysRev.24.03.234
Abstract:
As a new radiation source， heavy ion beams have demonstrated the outstanding advantage in mutation breeding. Based on this background， the basic principal and unique peculiarity of heavy ion beams, the achievement and the progress in the research of microbial mutation breeding are reviewed in the paper. The potential application of heavy ion beams to new biological energy is also prospected.
As a new radiation source， heavy ion beams have demonstrated the outstanding advantage in mutation breeding. Based on this background， the basic principal and unique peculiarity of heavy ion beams, the achievement and the progress in the research of microbial mutation breeding are reviewed in the paper. The potential application of heavy ion beams to new biological energy is also prospected.
2007, 24(3): 238-242.
doi: 10.11804/NuclPhysRev.24.03.238
Abstract:
It is assumed that a periodic modulation is equivalent to the deflected channel of the superlattice. In the small amplitude approximation the particle motion equation has been reduced to the Duffing equation with a hard-spring properties by using Lindhard expanded potential. The main resonance, the sub-harmonic resonance and the super-harmonic resonance have been analysed by the multi-scale technique. The critical parameter of the deflected channelling has been calculated, the results provided a theory analyse for the photo-magneto-electric effects of the superlattice.
It is assumed that a periodic modulation is equivalent to the deflected channel of the superlattice. In the small amplitude approximation the particle motion equation has been reduced to the Duffing equation with a hard-spring properties by using Lindhard expanded potential. The main resonance, the sub-harmonic resonance and the super-harmonic resonance have been analysed by the multi-scale technique. The critical parameter of the deflected channelling has been calculated, the results provided a theory analyse for the photo-magneto-electric effects of the superlattice.
2007, 24(3): 243-246.
doi: 10.11804/NuclPhysRev.24.03.243
Abstract:
The wave function of column quantum wires has been calculated with the
means of calculation for the quantum wave function in onedimensional potential well. The energy state, energy level diagram and wave function of column quantum wire have gained. Under assured temperature, the relations of column quantum wire diameter to its spectrum blue shift, separation or annexation of energy level, and electrons energy state have been discussed.
The wave function of column quantum wires has been calculated with the
means of calculation for the quantum wave function in onedimensional potential well. The energy state, energy level diagram and wave function of column quantum wire have gained. Under assured temperature, the relations of column quantum wire diameter to its spectrum blue shift, separation or annexation of energy level, and electrons energy state have been discussed.
2007, 24(3): 247-252.
doi: 10.11804/NuclPhysRev.24.03.247
Abstract:
The nuclear data measurements and preliminary evaluation as well as theoretical calculation for established and emerging 26 radionuclides produced in 61 ways by using reactor, accelerator or decay are briefly introduced. The measured data evaluation and theoretical calculation in some energy range are very important in order to keep the safety and validity in medical therapeutic applications. The 11 established radionuclides are 32P， 89Sr， 90Y， 103Pd，125I，131I， 137Cs， 153Sm，186Re，188Re，192Ir and the 16 emerging radionuclides are 64Cu，67Cu，67Ga， 86Y， 105Rh，111In，114mIn，124I， 125I(new)，149Pm， 166Ho，169Yb，177Lu，211At，213Bi，225Ac.
The nuclear data measurements and preliminary evaluation as well as theoretical calculation for established and emerging 26 radionuclides produced in 61 ways by using reactor, accelerator or decay are briefly introduced. The measured data evaluation and theoretical calculation in some energy range are very important in order to keep the safety and validity in medical therapeutic applications. The 11 established radionuclides are 32P， 89Sr， 90Y， 103Pd，125I，131I， 137Cs， 153Sm，186Re，188Re，192Ir and the 16 emerging radionuclides are 64Cu，67Cu，67Ga， 86Y， 105Rh，111In，114mIn，124I， 125I(new)，149Pm， 166Ho，169Yb，177Lu，211At，213Bi，225Ac.
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