常用放射性核素名称及半衰期表

常用放射性核素名称及半衰期表辽宁省放射环境监理站常用放射性核素名称及半衰期表 第 1 页核素名称半 衰 期核素名称半 衰 期氢3 H12.350.铍7 Be53.30.1天碳 14 C573040年钠22 Na2.6020.0钠24Na15.030.01小时镁28Mg21.00.1小时磷32P14.280.01天磷33P25.340.12天硫35S87.40.2天氯36Cl(3.000.02)1钾40K(1.2770.008)1氩41Ar1.830.01小时钾42K12.360.01小时钾43K22.30.1小时钪43Sc3.890.01小时钪44mSc2.440.01天钪44Sc3.930.01小时钛44Ti47.31.2年钙45Ca1651天钪46Sc83.850.05天钙47Ca4.5360.002天钪47Sc3.3510.002天钪48Sc43.70.2小时钒48V15.9760.003天钒49V33015天铬51Cr27.700.01天锰52Mn5.590.01天锰54Mn312.50.1天铁55Fe2.70.1年钴55Co17.50.1小时锰56Mn2.5790.001小时钴56Cr78.60.2天钴57Co270.90.6天镍57Ni36.00.2小时钴58Co70.80.1天铁59Fe44.50.2天 第 2 页核素名称半 衰 期核素名称半 衰 期钴60Co5.2700.0镍63Ni1002年铜64Cu12.700.01小时锌65Zn244.10.4天镓66Ga9.40.1小时铜67Cu61.90.2小时镓67Ga78.30.1小时镓68Ga68.10.2分锗68Ge2886天锌69mZn14.00.3小时锌69Zn55.61.6分锗71Ge11.150.15天砷71As612小时镓72Ga14.100.02小时砷72As26.00.1小时砷73As80.300.06天砷74As17.780.03天硒75Se118.50.3天砷76As26.310.04小时溴82Br35.310.03小时氪83mKr1.830.02小时氪85mKr4.480.01小时氪85Kr10.730.锶85Sr64.80.1天铷86Rb18.820.11天氪87Kr76.30.5分钇87Y锶87mSr 87Y：80.30.3小时 87mSr： 2.800.01小时钇87mY13.20.2小时氪88Kr2.840.03小时铷88Rb17.80.2分钇88Y106.60.2天锶89Sr50.50.2天锶90Sr28.60.3年钇90Y64.10.1小时锶91Sr9.50.1小时钇91mY49.70.1分钇91Y58.50.1天铌91mNb62天锶92Sr2.710.01小时 第 3 页核素名称半 衰 期核素名称半 衰 期钇92Y3.540.01小时铌92mNb10.150.03天铌94mNb6.260.01分锆95Zr64.00.1天铌95mNb86.60.8小时铌95Nb35.00.1天锆97Zr16.90.1小时铌97mNb608秒铌97Nb721分锝97Tc(2.60.4)1钌97Ru2.880.04天钼99Mo66.020.02小时锝99mTc6.020.02小时锝99Tc(2.140.05)1钌103Ru铑103mRh 103Ru:39.350.05天 103mRh:56.120.01分钯103Pd17.00.1天钌105Ru4.440.02小时铑105mRh45秒铑105Rh35.440.10小时银105Ag41.290.07天钌106Ru368.01.6天铑106Rh30.00.3秒银108mAg1277年钯109Pd13.460.02小时镉109Cd4532天银110mAg249.90.1天银111Ag7.450.02天铟111In2.830.01天铟113mIn99.50.2分锡113Sn115.10.3天铟114mIn49.510.01天镉115mCd44.60.5天镉115Cd53.50.1小时铟115mIn4.4860.004小时锡119mSn250天锡121Sn27.00.1小时锑122Sb2.690.02天碲123mTe119.70.1天碘123I13.050.02小时第 4 页核素名称半 衰 期核素名称半 衰 期锑124Sb60.200.03天锑125Sb2.730.碲125mTe581天碘125I60.120.15天碘126I12.930.06天碲127mTe1092天碘129I(1.60.1)1碘131I8.0400.001天铯131Cs9.6880.004天碲132Te78.20.8小时碘132I2.300.03小时铯132Cs6.470.02天碘133I20.80.2小时氙133Xe5.250.02天钡133Ba10.590.碲134Te41.80.8分碘134I52.60.1分铯134Cs2.0620.0碘135I6.610.01小时氙135mXe15.60.2分氙135Xe9.090.02小时铯136Cs13.160.03天铯137Cs钡137m Ba 137Cs:30.170. 137m Ba:2.5520.002分铯138Cs32.20.2分钡139Ba83.00.3分铈139Ce137.660.13天钡140Ba12.7460.010天镧140La40.270.01小时铈141Ce32.500.05天镧142La931分镨142Pr19.130.04小时铈143Ce33.00.2小时镨143Pr13.580.03天铈144Ce284.40.3天镨144m Pr7.20.2分镨144 Pr17.270.02分钕147Nd11.00.1天钷147Pm2.62340.00钷149Pm53.080.11小时第 5 页核素名称半 衰 期核素名称半 衰 期钷151Pm28.400.04小时钐151Sm908年铕152Eu13.20.3年钐153Sm46.70.1小时钆153Gd241.60.2天铕155Eu4.90.1年铕156Eu15.20.1天铽160Tb72.10.3天钬166mHo1200180年钬166Ho26.800.02小时铥168Tm93.10.1天铒169Er9.400.02天镱169Yb31.970.05天铥170Tm128.30.7天镱175Yb4.190.01天铪175Hf702天镥177Lu6.710.01天钽180mTa8.10.1小时铪181Hf42.40.1天钨181W121.10.1天钽182Ta115.00.2天钽183Ta5.10.1天钨185W75.10.3天锇185Os93.60.5天铼186Re90.60.1小时钨187W23.90.1小时铼188Re16.980.02小时铱190Ir11.80.1天锇191Os15.40.1天铱192Ir74.20.2天铱193m Ir10.60.2天铱194 Ir19.30.1小时铂195mPt4.0200.009天金195Au1831天金196Au6.180.02天铂197Pt18.30.3小时汞197mHg23.80.1小时汞197Hg64.10.2小时金198Au2.6950.002天金199Au3.140.02天第 6 页核素名称半 衰 期核素名称半 衰 期汞203Hg46.80.2天铊204Tl3.7730.0铋205Bi15.30.1天铋206Bi6.2430.003天铋207Bi383年钋208Po2.8980.0铅210Pb22.260.22年铋210Bi5.0130.005天钋210Po138.380.01天镭226Ra(1.600.01)1锕227Ac21.7730.0钍228Th1.913130.00088年钍232Th(1.410.01)10铀232U721年镤233Pa27.00.1天铀233U(1.5920.005)1铀234U(2.450.01)1铀235U(7.0380.005)1铀236U(2.3420.002)1镎236(m)Np(1.10.1)1镎236(g)Np22.50.4小时钚236Pu2.8510.0铀237U6.740.01天镎237Np(2.140.01)1钚237Pu45.30.2天铀238U(4.46830.0024)1镎238Np2.1170.002天钚238Pu87.740.铀239U23.40.1分镎239Np2.350.01天钚239Pu(2.41310.0016)1铀240U14.10.2小时镎240mNp7.50.1分镎240Np671分钚240Pu6537镅240Am50.80.3小时锔240Cm27天镎241Np16.00.2分钚241Pu14.40.2年镅241Am432.00.2年第 7 页核素名称半 衰 期核素名称半 衰 期锔241Cm32.80.2天钚242Pu(3.730.03)1镅242mAm1527年镅242Am16.020.02小时锔242Cm163.020.11天钚243Pu4.9560.003小时镅243Am738040年锔243Cm28.50.2年钚244Pu(8.10.2)1镅244mAm26分镅244Am10.10.1小时锔244Cm18.110.钚245Pu10.50.1小时镅245Am2.050.01小时锔245Cm(8.50.2)1钚246Pu10.850.02天镅246(m)Am25.00.2分镅246(g)Am393分锔246Cm(4.70.2)1锎252Cf2.6370.0氙133mXe2.190.02天