- 
                        
                                 Abstract:From the viewpoint of the self-consistent field theory of statistical thermody-namics, the shell effects and pairing effects on nuclear level densities and their rela-tions with excitation energies are analyed. On the basis of the above analysis, aSemi-empirical formula of nuclear level density is proposed. Three empirical para-meters are used, and the results for about 200 nuclei are satisfied.
- 
	                          
- 
                        References
	
			| [1] | A. Bohr and B. R. Mottlson, Nuclear Structure, Vol. 1.[2] H. A. Bethe, Rev. Mod. Phys., 9(1937), 69.[3] T. D. Newton, Can. J. Phys., 34(1956), 804[4] A. Gilbcrt and A. G. W. Cameron, Can. J. Phys, 43(1965),1446.[5] W. Dilg, W . Schantl and H. Vonach, Nucl. Phys, A217 (1973),269.[6] M. Sano and S. Yamasaki, Progr. Theor. Ply, 29(1963), 397.[7] W. D. Myers and W. J. Swiatecki, Ark. Fys, 36(1967),343;nucl. Phys, 81(1966), 1.[8] S. P. Mughabghab and D. I, Garber, Veutron Cross Sections, Vol. 1. Resonance Parameters.[9] H. Baba, Nucl. Phys., A159(1970), 625. |  
 
- 
                    	
	
				| [1] | LIU Chang-Long
								, LU Yi-Ying
								, YIN LI
								. Effects of Additional Vacancy-Like Defects Produced by Ion Impealations on Boron Thermal Diffusion in Silicon. Chinese Physics C,
							2005, 29(11): 1107-1111. |  
				| [2] | ZHU Xiang
								, SHEN Wen-Qing
								, HU Xiao-Qing
								, ZHU Yong-Tai
								, WANG Bing
								. A SIMPLE MODEL ANALYSIS OF THE INCOMPLETE DIC REACTION. Chinese Physics C,
							1990, 14(9): 835-841. |  
				| [3] | WU Zhong-Li
								. ANALYSIS OF THE MOMENTUM DISTRIBUTION WIDTH OF THE PREOJECTILE-LIKE-FRAGMENT FROM HEAVY ION COLLISIONS. Chinese Physics C,
							1989, 13(8): 752-754. |  
				| [4] | WU SHI-SHU
								. ON NUCLEAR SINGLE-PARTICLE POTENTIALS(Ⅲ)SINGLEPARTICLE ENERGIES DETERMINED BY THE NONHERMITIAN POTENTIAL Uαβ=Mαβ(εβ). Chinese Physics C,
							1979, 3(4): 469-483. |  
				| [5] | CHANG KONG-LIANG
								. DIMENSIONAL METHOD TO SOLVE THE DIFFUSION CONVECTION EQUATION OF SOLAR COSMIC RAYS. Chinese Physics C,
							1978, 2(3): 200-210. |  
 
- 
                        Access  
- 
                        
-