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                                 Abstract:Sources of 235Th were prepared by 14MeV neutron irradiation of Uranium and radiochemical separation.The β-spectra and γ-spectra were measured.The endpoint energy for 235Th β-decay was obtained to be 1.44±0.04MeV.Thus QB of 235Th was determined to be 1.47±0.07MeV.
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                        References
	
			| [1] | S.  Mirzadeh,  Y.  Y.  Chu,  S.  Katcoff,  L.  K.  Pekrr.  Phys.  Rev., 033(1986),  2159.[2] 李伟生,徐树威,袁双贵,张天梅,递次衰变优化拟合程序,(未发表).[3] 戴光曦等,核素图册,(1987),[4] 袁双贵,徐树威,多分支R谱分析程序,(未发表).[5] M. R. Schmorak, Nucl. Data Sheets, 40(1983), 53.[6] M.  Asghar  et  al.,  Nucl. Phys.,  A259(1976),  929. 
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				| [1] | SHEN Shui-Fa
								, YU Xiao-Han
								. Decay of 83Sr and Discussion of Its Daughter's Band Structures. Chinese Physics C,
							2004, 28(S1): 78-80. |  
				| [2] | BES Collaboration
								. Experimental Study of Resonance f2(1270) in the J/ψ Hadronic Decay. Chinese Physics C,
							1993, 17(2): 97-106. |  
 
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