鈾、釷系核素γ射線情況

鈾、釷系核素γ射線情況鈾、釷系核素γ射線情況鈾、釷系核素γ射線情況表1釷系衰變鏈核素名稱半衰期（T1/2）γ射線主要能量（Kev）分支比（%）232Th1。41x1010a63。811140.880.2590.021228Ra5。75a12。8813.5226.400.301。600。14228Ac6.15h129.065209。248270.245328.004338.320409.460463.002794.942835。704911.196964。786968.9601630。6182.53.973.553.0411。42。024.454.311。7026.34。9915。91。52228Th1.91a84。373131.612166。410215。9851.190。1270.10040.246224Ra3。63d240。9864.12220Rn55。8s549。760.115216Po0。148s804.90.0019212Pb10.64h115。183238。632300.0890。62443.63。18212Bi60.54min39。858727.330785.371620。7381.076。651.111.51208Tl3。058min277。37510。74583.187763.45860。532614.5113.1724.122.149.612。499.755212Po300x10—9s無無208Pb穩(wěn)定表2鈾系衰變鏈核素名稱半衰期(T1/2）γ射線主要能量（Kev）分支比(%）238U4.468x109a49.55113。50.06970.0174234Th24。10d63.392.3892。8112。83。752.182.150。215234Pa131。3152.7227.25569。5733。39880。52883。24925926.7946。018.26.05.89。37。010.59。77。97。313。5234U2。455x105a53.2120.90.12530.0386230Th7。538x104a67.67143。87253。730.3770。04880.0111226Ra1600a186.213.55222Rn3.82d5100。076218Po3.098min8370.0011214Pb26.8min53.23241.997295。224351.932785。961.067。2718.41435。601.064214Bi19.9min609.312768.356934.0611120。2871238。111377。6691764。4942204.2145.494。8923.1014。915。8313。96815。314.913214Po163.6us799。70.0104210Tl1.3min97296356799.6860107011101210131014102010209023602430479498.9696.911。96。916.820。84。96。94。97。98。9210Pb22。2a46.54。252210