| E(keV) | Intensity | Nuclide |
|---|---|---|
| 253.5( 2) | 0.971 | Ac-226 (EC 29.37 H) |
| 254.29( 5) | 11.038 | Ce-137m (IT 34.4 H) |
| 260.5( 1) | 0.675 | Po-209 (A 102 Y) |
| 261.29(10) | 11.847 | Kr-79 (EC 35.04 H) |
| 261.75( 4) | 30.645 | Hg-195m (EC 41.6 H) |
| 263.7( 3) | 2.296e-02 | Cd-113m (IT 14.1 Y) |
| 264.6576( 9) | 58.562 | Se-75 (EC 119.79 D) |
| 265.6 | 50. | Bi-210m (A 3.04E+6 Y) |
| 268.218(20) | 16. | Ba-135m (IT 28.7 H) |
| 269.459(10) | 13.7 | Ra-223 (A 11.435 D) |
| 270.405(15) | 80. | Hf-182 (B- 9E6 Y) |
| 271.13 | 86.746 | Sc-44m (IT 58.6 H) |
| 271.8( 4) | 2.64 | Fm-253 (A 3.00 D) |
| 272.105(15) | 21.448 | Lu-173 (EC 1.37 Y) |
| 272.914(12) | 0.55 | Lu-174m (EC 142 D) |
| 273.44( 1) | 14.506 | Ba-128 (EC 2.43 D) |
| 275.925( 7) | 17.798 | Ba-133m (IT 38.9 H) |
| 275.990(11) | 0.297 | Kr-81 (EC 2.29E5 Y) |
| 277.599( 2) | 13.966 | Cm-243 (A 29.1 Y) |
| 279.1967(12) | 82.416 | Pb-203 (EC 51.873 H) |
| 279.1967(12) | 81.46 | Hg-203 (B- 46.612 D) |
| 280.40(20) | 9.156e-04 | Pu-237 (A 45.2 D) |
| 285.95( 1) | 3.1 | Pm-149 (B- 53.08 H) |
| 287.2 | 100. | Cf-252,Cm-248 (SF) |
| 288.3( 2) | 0.548 | Cf-252 (SF 2.645 Y) |
| 289.4( 5) | 112. | Cf-252 (SF 2.645 Y) |
| 290.669(13) | 0.402 | W-188 (B- 69.4 D) |
| 291.9( 5) | 1.351e-03 | Po-208 (EC 2.898 Y) |
| 293.266( 2) | 42.8 | Ce-143 (B- 33.10 H) |
| 296.1( 5) | 100. | Cf-252,Cm-248 (SF) |
| 303.74(16) | 8.640e-02 | Cf-252 (SF 2.645 Y) |
| 306.84( 4) | 93.6 | Lu-176 (B- 4.00E10 Y) |
| 306.857( 5) | 75.835 | Rh-101m (EC 4.34 D) |
| 312.17( 2) | 38.6 | Pa-233 (B- 26.967 D) |
| 314.8( 3) | 9.408e-02 | Pa-230 (B- 17.4 D) |
| 316.50618(17) | 82.711 | Ir-192 (B- 73.827 D) |
| 318.9( 1) | 19.1 | Rh-105 (B- 35.36 H) |
| 320.0824( 4) | 9.92 | Cr-51 (EC 27.7025 D) |
| 327.2( 5) | 1.740e-05 | Bk-249 (A 320 D) |
| 327.526(10) | 4.009 | Eu-149 (EC 93.1 D) |
| 328.50( 3) | 61.144 | Au-194 (EC 38.02 H) |
| 330.7 | 100. | Cf-252 (SF 2.645 Y) |
| 332.7( 1) | 102. | Cm-248 (SF 3.48E+5 Y) |
| 332.7( 1) | 102. | Cf-252 (SF 2.645 Y) |
| 333.971(12) | 98.515 | Eu-150 (EC 36.9 Y) |
| 336.241(25) | 45.9 | Cd-115 (B- 53.46 H) |
| 340.08( 1) | 22.5 | Pm-151 (B- 28.40 H) |
| 342.13( 2) | 6.68 | Ag-111 (B- 7.45 D) |
| 343.3( 2) | 12.6 | Cm-248 (SF 3.48E+5 Y) |
| 343.40( 8) | 87.562 | Hf-175 (EC 70 D) |