| Energy (keV) | Nuclide | Prob. of Gamma Emission (%) | Half-Life | Accompanying gammas | Origin |
|---|
| 8.0 | Cu X-ray | [100] | | 8.9 [12] | fluorescence Kax |
| 8.9 | Cu X-ray | [12] | | 8.0 [100] | fluorescence Kbx |
| 22.9 | Cd X-rays | | | | fluorescence Kax |
| 23.2 | Cd X-ray | [100] | | 26.1+26.6 [19] | |
| 26.1 | Cd X-rays | | | | fluorescence Kbx |
| 26.6 | Cd X-ray | [19] | | 22.9+23.2 [100] | |
| 30.0 | 140Ba | 13.60 | 12.75 d | 527.3 (24.4%) | fission |
| 46.5 | 210Pb | 4.05 | 22.3 y | | 238U series (226Ra) |
| 53.4 | 73mGe | 10.50 | 499 ms | | detector: 72Ge(n,g), 74Ge(n,2n) |
| 59.5 | 241Am | 36.00 | 432.2 y | | (activation) (241Pu) |
| 63.3 | 234Th | 3.80 | 24.d (supported) | | 238U (226Ra) series |
| 68.7 | 73*Ge | | prompt | | detector: 73Ge(n,n'), broad peak |
| 72.8 | Pb X-ray | 2.80 | | 75.0 (4.6%) | fluorescence Ka2 |
| 74.8 | Bi Xray | 6.50 | | | fluorescence Ka2 |
| 75.0 | Pb X-ray | 4.60 | | 72.8 (2.8%) | fluorescence Ka1 |
| 77.1 | Bi Xray | 11.10 | | | fluorescence Ka1 |
| 80.1 | 144Ce | 1.13 | 284.9 d | 133.5 (11.1%) | fission |
| 84.4 | Pb X-ray | | | | fluorescence Kb3 |
| 84.8 | Pb X-ray | 1.64 | | 75.0 (4.6%) | fluorescence Kb1 |
| 87.2 | Bi Xray | 3.90 | | | fluorescence Kb1 |
| 87.6 | Pb X-ray | 0.47 | 462.6d | | activation |
| 88.0 | 109Cd | 0.036 | | 75.0 (4.6%) | fluorescence Kb2 |
| 90.1 | Bi Xray | 1.20 | | | fluorescence Kb2 |
| 93.4 | 228Ac | 5.60 | 6.13 h (supported) | 911.2 (29%) | 232Th series |
| 99.6 | 228Ac | 1.30 | 6.13 h (supported) | 911.2 (29%) | 232Th series |
| 106.1 | 239Np | 26.70 | 2.35 d | 277.6 (14.3%) | (activation ) (239U) |
| 111.8 | 132Te | 1.85 | 3.26 d | 228.3 (88.2%) | flssion |
| 116.4 | 132Te | 1.94 | 3.26 d | 228.3 (88.2%) | fission |
| 121.8 | 152Eu | 28.37 | 13.5 y | 1408.0 (20.8%) | activation |
| 123.1 | 154Eu | 41.20 | 8.59 y | 1274.4 (35%) | activation |
| 133.5 | 144Ce | 11.10 | 284.9 d | 80.1 (1.13%) | fission |
| 139.5 | 75mGe | 38.80 | 47.7 s | | detector: 74Ge(n,g), 76Ge(n,2n) |
| 140.5 | 99mTc | 87.20 | 6.01 h (supported) | | fission (99Mo) |
| 140.5 | 99Mo | 90.70 | 2.75 d | 739.5 (12.14%) | fission |
| 145.4 | 141Ce | 48.40 | 32.5 d | | fission |
| 159.7 | 77mGe | 11.30 | 52.9 s | | detector: 76Ge(n,g) |
| 162.7 | 140Ba | 6.21 | 12.75 d | 30.0 (13.6%) | fission |
| 181.1 | 99Mo | 6.07 | 2.75 d | 140.5 (90.7%) | fission |
| 185.7 | 235U | 53.00 | 7.04E8y | | 235U series |
| 186.1 | 226Ra | 3.28 | 1600 y | | 238U series |
| 228.2 | 239Np | 11.12 | 2.35 d | 106.1 (26.7%) | (activation U) |
| 228.3 | 132Te | 88.20 | 3.26 d | 116.4 (1.94%) | fission |
| 238.6 | 212Pb | 43.60 | 10.6 h (supported) | 300.0 (3.34%) | 232Th series |
| 240.8 | 224Ra | 3.90 | 3.66 d | | 232Th series |
| 260.9 | 115Cd | 1.94 | 2.23 d | 336.3 (50.1%) | activation |
| 277.6 | 239Np | 14.30 | 2.35 d | 106.1 (26.7%) | (activation U) |
| 278.3 | 64*Cu | | prompt | | detector: 63Cu(n,g), 65Cu(n,2n) |
| 284.3 | 131I | 6.06 | 8.04 d | 364.5 (81.2%) | fission (activation Te) |
| 295.1 | 214Pb | 19.20 | 26.8 m (supported) | 351.9 (37.1%) | 238U (226Ra) series |
| 300.0 | 212Pb | 3.34 | 10.6 h (supported) | 238.6 (43.6%) | 232Th series |
| 320.1 | 51Cr | 9.86 | 27.71d | | activation |
| 336.3 | 115Cd | 50.10 | 2.23 d | 527.9 (27.5%) | activation |
| 338.4 | 228Ac | 12.40 | 6.13 h (supported) | 911.2 (29%) | 232Th series |
| 340.6 | 136Cs | 48.60 | 13.16 d | 818.6 (99.76%) | fission |
| 344.3 | 152Eu | 26.57 | 13.5 y | 121.8 (28.37%) | activation |
| 351.9 | 214Pb | 37.10 | 26.8 m (supported) | 295.1 (19.2%) | 238U (226Ra) series |
| 364.5 | 131I | 81.20 | 8.04 d | 637.0 (7.27%) | fission (activation Te) |
| 427.9 | 125Sb | 29.70 | 2.76 y | 600.6 (17.7%) | fission (activation Sn) |
| 473.6 | 127Sb | 24.70 | 3.85 d | 685.7 (35.3%) | fission |
| 477.6 | 7Be | 10.39 | 53.3 d | | cosmic |
| 487.0 | 140La | 45.90 | 1.68 d (supported) | 1596.4 (95.4%) | fission (140Ba) |
| 497.1 | 103Ru | 88.70 | 39.25 d | 610.3 (5.64%) | fission |
| 511.0 | many | | | | annihilation radiation |
| 511.9 | 106Ru | 20.70 | 1.02 y | 621.9 (9.8%) | fission |
| 527.9 | 115Cd | 27.50 | 2.23 d | 336.3 (50.1%) | activation |
| 529.8 | 133I | 86.00 | 20.8 h | 875.3 (4.47%) | fission |
| 537.3 | 140Ba | 24.39 | 12.75 d | 30.0 (13.6%) | fission |
| 558.4 | 114*Cd | | prompt | 805.9 | shielding: 113Cd(n,g) |
| 569.3 | 134Cs | 15.40 | 2.066 y | 604.7 (97.6%) | activation (fission) |
| 579.2 | 207*Pb | | prompt | | shielding: 207Pb(n,n') |
| 583.0 | 208Tl | 86.00 | 3.053 m (supported) | 911.2 (29%) | 232Th series |
| 595.8 | 74*Ge | | prompt | | detector: 74Ge(n,n'), broad peak |
| 600.6 | 125Sb | 17.70 | 2.76 y | 427.9 (29.7%) | fission (activation Sn) |
| 602.7 | 124Sb | 97.80 | 60.2 d | 1691.0 (47.1%) | activation |
| 604.7 | 134Cs | 97.60 | 2.066 y | 795.9 (85.4%) | activation (fission) |
| 609.3 | 214Bi | 46.10 | 19.9 m (supported) | 1120.7 (15. 0%) | 238U (226Ra) series |
| 610.3 | 103Ru | 5.64 | 39.25 d | 497.1 (88.7%) | fission |
| 621.9 | 106Ru | 9.80 | 1.02 y | 511.9 (20.7%) | fission |
| 635.9 | 125Sb | 11.21 | 2.76 y | 600.6 (17.7%) | fission (activation Sn) |
| 637.0 | 131I | 7.27 | 8.04 d | 364.5 (81.2%) | fission (activation Te) |
| 657.8 | 110mAg | 94.60 | 249.8 d | 884.7 (72.7%) | activation |
| 661.7 | 137Cs | 85.10 | 30.17 y | | fission |
| 667.7 | 132I | 98.70 | 2.284 d | 772.7 (76.2%) | fission (132Te) |
| 685.7 | 127Sb | 35.30 | 3.85 d | 784.0 (14.5%) | fission |
| 691.0 | 72*Ge | | prompt | | detector: 72Ge(n,n'), broad peak |
| 696.5 | 144Pr | 1.34 | 17.28 m (supported) | 2185.7 (0.7%) | fission (144Ce) |
| 722.8 | 124Sb | 10.90 | 60.2 d | 602.7 (97.8%) | activation |
| 723.3 | 154Eu | 20.20 | 8.59 y | 1274.4 (35%) | activation |
| 724.2 | 95Zr | 44.10 | 64.2 d | 756.7 (54.5%) | fission |
| 727.2 | 212Bi | 6.65 | 1.01 h (supported) | 1620.7 (1.51%) | 232Th series |
| 739.5 | 99Mo | 12.14 | 2.75 d | 140.5 (90.7%) | fission |
| 756.7 | 95Zr | 54.50 | 64.2 d | 724.2 (44.1%) | fission |
| 765.8 | 95Nb | 99.81 | 34.97 d (supported) | | fission (95Zr) |
| 768.4 | 214Bi | 4.88 | 19.9 m (supported) | 609.3 (46.1%) | 238U (226Ra) series |
| 772.7 | 132I | 76.20 | 2.284 h (supported) | 667.7 (98.7%) | fission (132Te) |
| 784.0 | 127Sb | 14.50 | 3.85 d | 685.7 (35.3%) | fission |
| 795.9 | 134Cs | 85.40 | 2.066 y | 604.7 (97.6%) | activation (fission) |
| 803.3 | 206*Pb | | prompt | | shielding: 206Pb(n,n') |
| 810.8 | 58Co | 99.45 | 70.86 d | | activation |
| 815.8 | 140La | 23.60 | 1.68 d (supported) | 1596.4 (95.4%) | fission (140Ba) |
| 818.6 | 136Cs | 99.76 | 13.16 d | 1048.1 (79.7%) | fission |
| 834.8 | 54Mn | 99.98 | 312.3 d | | activation |
| 875.3 | 133I | 4.47 | 20.8 h | 529.8 (86%) | fission |
| 884.7 | 110mAg | 72.70 | 249.8 d | 657.8 (94.6%) | activation |
| 911.2 | 228Ac | 29.00 | 6.13 h (supported) | 969.0 (17.4%) | 232Th series |
| 934.0 | 214Bi | 3.16 | 19.9 m (supported) | 609.3 (46.1%) | 238U (226Ra) series |
| 937.5 | 110mAg | 34.40 | 249.8 d | 657.8 (94.6%) | activation |
| 954.6 | 132I | 18.10 | 2.284 h (supported) | 667.7 (98.7%) | fission (132Te) |
| 962.1 | 63*Cu | | prompt | | detector: 63Cu(n,n') |
| 964.4 | 228Ac | 5.80 | 6.13 h (supported) | 911.2 (29%) | 232Th series |
| 969.0 | 228Ac | 17.40 | 6.13 h (supported) | 911.2 (29%) | 232Th series |
| 1048.1 | 136Cs | 79.70 | 13.16 d | 818.6 (99.76%) | fission |
| 1050.4 | 106Ru | 1.53 | 1.02 y | 511.9 (20.7%) | fission |
| 1097.3 | 116In | 56.20 | 54.1 m | | 115In(n,g) |
| 1099.3 | 59Fe | 56.50 | 44.50 d | 1291.6 (43.2%) | activation |
| 1115.5 | 65Zn | 50.60 | 244.26 d | | activation |
| 1120.3 | 214Bi | 15.00 | 19.9 m (supported) | 609.3 (46.1%) | 238U (226Ra) series |
| 1173.2 | 60Co | 99.86 | 5.271 y | 1332.5 (99.98%) | activation |
| 1238.2 | 214Bi | 5.92 | 19.9 m (supported) | 609.3 (46.1%) | 238U (226Ra) series |
| 1274.4 | 154Eu | 35.00 | 8.59 y | 123.1 (41.2%) | activation |
| 1291.6 | 59Fe | 43.20 | 44.50 d | 1099.3 (56.5%) | activation |
| 1293.6 | 116In | 84.40 | 54.1 m | | detector: 115In(n,g) |
| 1293.7 | 41Ar | 99.20 | 1.827 h | | activation (of air) |
| 1298.2 | 133I | 2.33 | 20.8 h | 529.8 (86%) | fission |
| 1332.5 | 60Co | 99.98 | 5.271 y | 1173.2 (99.9%) | activation |
| 1368.6 | 24Na | 100.00 | 14.97 h | 2754.0 (99.9%) | activation |
| 1377.7 | 214Bi | 4.02 | 19.9 m (supported) | 609.3 (46.1%) | 238U (226Ra) series |
| 1408.0 | 152Eu | 20.85 | 13.5 y | 121.8 (28.37%) | activation |
| 1460.8 | 40K | 10.67 | 1.28E9 y | | primordial |
| 1509.2 | 214Bi | 2.19 | 19.9 m (supported) | 609.3 (46.1%) | 238U (226Ra) series |
| 1596.5 | 140La | 95.40 | 1.68 d (supported) | 487.0 (45.9%) | fission (140Ba) |
| 1620.7 | 212Bi | 1.51 | 1.01 h (supported) | 727.2 (6.65%) | 232Th series |
| 1691.0 | 124Sb | 47.10 | 60.2 d | 602.7 (97.8%) | activation |
| 1729.9 | 214Bi | 3.05 | 19.9 m (supported) | 609.3 (46.1%) | 238U (226Ra) series |
| 1764.5 | 214Bi | 15.90 | 19.9 m (supported) | 609.3 (46.1%) | 238U (226Ra) series |
| 1847.4 | 214Bi | 2.12 | 19.9 m (supported) | 609.3 (46.1%) | 238U (226Ra) series |
| 2185.7 | 144Pr | 0.70 | 17.28 m (supported) | 696.5 (1.34%) | fission (144Ce) |
| 2223.0 | 2*H | | prompt | | 1H(n,g) |
| 2614.4 | 208Ti | 99.79 | 3.05 m (supported) | 583.0 (86%) | 232Th series, 208Pb(n,n') |
| 2754.0 | 24Na | 99.85 | 14.97 h | 1368.6 (100%) | activation |
| 6129.2 | 16N | 68.80 | 7.13 s | 7115.2 (4.7%) | activation |
| 6606.0 | 16N | Single Escape | 7.13 s | 7115.2 (4.7%) | activation |
| 6639.0 | 16N | ? | 7.13 s | 7115.2 (4.7%) | activation |
| 7115.2 | 16N | 4.70 | 7.13 s | 7115.2 (4.7%) | activation |
resources/background.htm Copyright © 2000 Dr Gordon Gilmore