Fission Product Yield Data for the Transmutation of Minor Actinide ...

More documents

Recommendations

Info

4.3.5. Comparisons with measured mass yields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151 4.3.6. Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154 References to Section 4.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 4.4. Phenomenological model for fragment mass and charge distribution in actinide nuclei fission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 Yu.V. Kibkalo 4.4.1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 4.4.2. Energy dependence of nuclear fission cross-sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158 4.4.3. Angular momentum dependence of fission fragment mass distributions . . . . . . . . . . . . . . 159 4.4.4. Fragment mass distributions for photofission. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 4.4.5. Fragment mass distributions from fission by α particles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165 4.4.6. Fragment mass distribution for 238 U fission by neutrons . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 4.4.7. Fragment mass distribution for spontaneous fission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 4.4.8. Description of fission fragment mass and charge distributions . . . . . . . . . . . . . . . . . . . . . . 171 4.4.9. Concluding remarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181 References to Section 4.4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181 4.5. Modal approach to the description of fragment mass yields in neutron and proton induced fission of actinides at incident particle energies from 5 to 200 MeV . . . . . . . . . . . . . . . . . . . . . . . . 183 D.M. Gorodisskiy, S.I. Mulgin, A.Ya. Rusanov, S.V. Zhdanov 4.5.1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183 4.5.2. Experiments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184 4.5.3. Multi-modal analysis of MEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188 4.5.4. Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193 4.5.5. Systematics of fragment mass yields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201 4.5.6. PYF code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 4.5.7. Conclusions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 References to Section 4.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 4.6. Fission yields in nucleon induced reactions at intermediate energies . . . . . . . . . . . . . . . . . . . . . . . 210 M.C. Duijvestijn, A.J. Koning 4.6.1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210 4.6.2. Compilation of proton induced fission product isotope yields. . . . . . . . . . . . . . . . . . . . . . . 210 4.6.3. Activation experiment on proton induced fission of nat W, 197 Au, nat Pb, 208 Pb and 232 Th at 190 MeV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210 4.6.4. Predictions of fission yields at intermediate energies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219 4.6.5. Summary and outlook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233 References to Section 4.6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236 5. NEW MODELS AND SYSTEMATICS: DEFINITIONS AND TESTING . . . . . . . . . . . . . . . . . . . . . 239 M. Lammer 5.1. Output and products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 5.1.1. Data files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 5.1.2. Dedicated studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239 5.1.3. Models and systematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240 5.2. Benchmark exercise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 5.2.1. Benchmark exercise — general remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 5.2.2. Summary of results and intercomparisons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 5.2.3. Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247 5.3. Conclusions and recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249 References to Section 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
6. BENCHMARK EXERCISE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253 M. Lammer 6.1. Choice of fissioning systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253 6.2. Part A benchmark exercise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253 6.2.1. General remarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253 6.2.2. Post-neutron emission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 6.2.3. Pre-neutron emission mass distributions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 267 6.3. Part B benchmark exercise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277 6.4. Influence of multi-chance fission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277 6.4.1. Superposition of preferred fission modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277 6.4.2. Change in peak positions and mass symmetry point in asymmetric fission . . . . . . . . . . . . 277 References to Section 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278 APPENDIX I: EVALUATION OF THE MASS DISTRIBUTION DATA FOR 238 U, 239 Pu AND 242 Pu FISSION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279 Liu Tingjin APPENDIX II: DATA ADJUSTMENT FOR MASS RESOLUTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305 Liu Tingjin APPENDIX III: FISSION YIELD SYSTEMATICS AND COVARIANCE STUDY FOR 238 U . . . . . . 323 Liu Tingjin, Sun Zhengjun CONTENTS OF CD-ROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 339 LIST OF PARTICIPANTS IN THE COORDINATED RESEARCH PROJECT . . . . . . . . . . . . . . . . . . . . 341
Page 1 and 2: Fission Product Yield Data for the
Page 3 and 4: AFGHANISTAN ALBANIA ALGERIA ANGOLA
Page 5 and 6: COPYRIGHT NOTICE All IAEA scientifi
Page 7 and 8: CONTRIBUTING AUTHORS Denschlag, J.-
Page 9: 3.2.1. Introduction . . . . . . . .
Page 13 and 14: However, this CRP entered an entire
Page 15 and 16: ‘Provisional masses’ are determ
Page 17 and 18: Three scientists were invited to pa
Page 19 and 20: 8 (d) Prompt or delayed neutron emi
Page 21 and 22: [2.1.40] ITKIS, M.G., OGANESSIAN, Y
Page 23 and 24: [2.1.96] PATE, B.D., et al., Distri
Page 25 and 26: [2.1.152] JACOBS, E., et al., Produ
Page 27 and 28: 16 2.2. MEASUREMENTS OF THE ENERGY
Page 29 and 30: FIG. 2.2.3. 94 Sr: best experimenta
Page 31 and 32: FIG. 2.2.15. 132 Te: best experimen
Page 33 and 34: FIG. 2.2.27. 146 Ba: best experimen
Page 36 and 37: 3. EVALUATIONS 3.1. ACTINIDE NUCLEO
Page 38 and 39: 3.1.2. Statistical model At least t
Page 40 and 41: J Â K=-J 2 2 2 ^ sym Krot ( U, J)
Page 42 and 43: nuclei with N > 144. However, for h
Page 44 and 45: neutron number. The observed fissio
Page 46 and 47: FIG. 3.1.6. 235 U(n,f) fission cros
Page 48 and 49: FIG. 3.1.10. 237 Np(n,f) fission cr
Page 50 and 51: from higher fission chances [3.1.43
Page 52 and 53: [3.1.48] DUSHIN, V.N., et al., Stat
Page 54 and 55: where Y S is our new standard, and
Page 56 and 57: TABLE 3.2.2. EVALUATED REFERENCE FI
Page 58 and 59: TABLE 3.2.2. EVALUATED REFERENCE FI
Page 60 and 61:
TABLE 3.2.3. EVALUATED REFERENCE YI
Page 62 and 63:
TABLE 3.2.3. EVALUATED REFERENCE YI
Page 64 and 65:
The comparisons of our evaluated da
Page 66 and 67:
TABLE 3.2.4. COMPARISON OF RECOMMEN
Page 68 and 69:
Page 70 and 71:
Page 72 and 73:
Page 74 and 75:
Page 76 and 77:
Page 78 and 79:
Page 80 and 81:
Page 82 and 83:
Page 84 and 85:
Page 86 and 87:
Page 88 and 89:
Page 90 and 91:
Page 92 and 93:
Page 94 and 95:
TABLE 3.2.8. COMPARISON OF THE UNCE
Page 96:
REFERENCES TO SECTION 3.2 [3.2.1] I
Page 99 and 100:
where N C , N U are the modified an
Page 101 and 102:
activities were recorded with a pro
Page 103 and 104:
3.3.4. Results and discussion The r
Page 105 and 106:
FIG. 3.3.10. Li Ze et al. data: com
Page 107 and 108:
96 Annex 3.3.1 EVALUATED EXPERIMENT
Page 109 and 110:
Li Ze et al. [3.3.8] Thierens et al
Page 111 and 112:
100 Annex 3.3.3 EVALUATED DATA SET
Page 113 and 114:
The range of target nuclides availa
Page 115 and 116:
condensation of cross-sections by t
Page 117 and 118:
(h) REFERENCE (C,80KIEV,171,1980) i
Page 119 and 120:
uncertainties of the calculation. T
Page 122 and 123:
4. SYSTEMATICS AND MODELS FOR THE P
Page 124 and 125:
FIG. 4.1.2. 235 U total cross-secti
Page 126 and 127:
FIG. 4.1.9. Total and mode separate
Page 128 and 129:
4.2. SYSTEMATICS OF FISSION PRODUCT
Page 130 and 131:
A - = (PA - NT)/2 (4.2.1b) 4.2.2.3.
Page 132 and 133:
FIG. 4.2.4(a). 238 U + 5.5 MeV n, L
Page 134 and 135:
FIG. 4.2.8(a). U238 + 300 MeV p, LS
Page 136 and 137:
TABLE 4.2.1. EQUATIONS FOR SYSTEMAT
Page 138 and 139:
values (points) and the derived fun
Page 140 and 141:
distributions. Values of N(A) seldo
Page 142 and 143:
FIG. 4.2.19. Systematic Z P paramet
Page 144 and 145:
FIG. 4.2.21. Systematic Z P paramet
Page 146 and 147:
FIG. 4.2.23. Nuclear charge displac
Page 148 and 149:
FIG. 4.2.24. Number of protons emit
Page 150 and 151:
epresenting model values and thus s
Page 152 and 153:
FIG. 4.2.36. n T(A) for CF249T. FIG
Page 154 and 155:
FIG. 4.2.41. U235T, line: model; po
Page 156 and 157:
The FAST subroutine in the CYFP pro
Page 158 and 159:
[4.2.28] BELHAFAF, D., et al., Kine
Page 160 and 161:
4.3. FIVE GAUSSIAN SYSTEMATICS FOR
Page 162 and 163:
Derived from measured data Fitted r
Page 164 and 165:
FIG. 4.3.7. Mass distribution of 23
Page 166 and 167:
FFIG. 4.3.12. Mass distribution of
Page 168 and 169:
4.4. PHENOMENOLOGICAL MODEL FOR FRA
Page 170 and 171:
where = 2mE is the wavelength, E
Page 172 and 173:
FIG. 4.4.4. Fragment mass distribut
Page 174 and 175:
Page 176 and 177:
fragment mass distributions are des
Page 178 and 179:
Page 180 and 181:
FIG. 4.4.10. Fragment mass distribu
Page 182 and 183:
P LD È Ê * E - 44. 7ˆ ˘ = Í1 +
Page 184 and 185:
FIG. 4.4.13. Pre-neutron emission m
Page 186 and 187:
FIG. 4.4.15. Post-neutron emission
Page 188 and 189:
FIG. 4.4.17. Post-neutron emission
Page 190 and 191:
fragment mass and charge distributi
Page 192 and 193:
of the energy dependence of the fus
Page 194 and 195:
4.5. MODAL APPROACH TO THE DESCRIPT
Page 196 and 197:
This information was used for the p
Page 198 and 199:
two neighbouring isotopes at differ
Page 200 and 201:
FIG.4.5.2. Experimental relative ma
Page 202 and 203:
Frequently, the yields Y i (M) are
Page 204 and 205:
the nine optimum description parame
Page 206 and 207:
TABLE 4.5.6. RELATIVE CONTRIBUTIONS
Page 208 and 209:
TABLE 4.5.8. RELATIVE CONTRIBUTIONS
Page 210 and 211:
Extracted values of s 2 M,S demonst
Page 212 and 213:
FIG. 4.5.10. Fission fragment charg
Page 214 and 215:
FIG. 4.5.12. Unchanged charge densi
Page 216 and 217:
FIG. 4.5.16. Mass yield variance fo
Page 218 and 219:
FIG. 4.5.20. Experimental mass yiel
Page 220 and 221:
[4.5.24] GOVERDOVSKII, A.A., MITROF
Page 222 and 223:
TABLE 4.6.1. FISSION PRODUCT YIELD
Page 224 and 225:
TABLE 4.6.2. FIT PARAMETER VALUES O
Page 226 and 227:
FIG. 4.6.2. Charge distributions fo
Page 228 and 229:
model which is elucidated elsewhere
Page 230 and 231:
the agreement is better. The observ
Page 232 and 233:
inner barrier is much lower than th
Page 234 and 235:
e determined in a self-consistent m
Page 236 and 237:
FIG. 4.6.11. Overview of the coupli
Page 238 and 239:
cross-section also has to be incorp
Page 240 and 241:
FIG. 4.6.16. Same as Fig. 4.6.15, b
Page 242 and 243:
FIG. 4.6.20. Pre-neutron emission m
Page 244 and 245:
present have a reasonable contribut
Page 246 and 247:
TABLE 4.6.5. ACCURACIES OBTAINED FR
Page 248 and 249:
[4.6.7] BEIJERS, J.P.M., et al., Se
Page 250 and 251:
5. NEW MODELS AND SYSTEMATICS: DEFI
Page 252 and 253:
therefore his benchmark calculation
Page 254 and 255:
mass distributions and practically
Page 256 and 257:
5.2. BENCHMARK EXERCISE 5.2.1. Benc
Page 258 and 259:
thorough and detailed analysis of t
Page 260 and 261:
the fissioning nucleus and the numb
Page 262:
should be undertaken — such a stu
Page 265 and 266:
experimental method in order to der
Page 267 and 268:
256 Valley heights and peak-to-vall
Page 269 and 270:
FIG. 6.2.3. Benchmark exercise, par
Page 271 and 272:
260 Wahl uncert. margins Wahl uncer
Page 273 and 274:
Page 275 and 276:
264 Wahl uncert. margins (adj. Wahl
Page 277 and 278:
Wahl (1.6-160 MeV): Distributions a
Page 279 and 280:
TABLE 6.2.2. 238 U PRE-NEUTRON EMIS
Page 281 and 282:
as most features are very similar t
Page 283 and 284:
FIG. 6.2.14. Benchmark exercise, pa
Page 285 and 286:
Page 287 and 288:
Page 289 and 290:
278 REFERENCES TO SECTION 6 [6.1] B
Page 291 and 292:
As mentioned above, the mass distri
Page 293 and 294:
I.3.2.6. Liu Conggui et al. [I.8] M
Page 295 and 296:
after prompt-neutron emission, and
Page 297 and 298:
286 Zöller (1995) 89-110 MeV, post
Page 299 and 300:
(1) Data were linearly interpolated
Page 301 and 302:
1. 290 Annex to Appendix I RECOMMEN
Page 303 and 304:
1.2. E n = 5.5 MeV 292 Nagy et al.
Page 305 and 306:
1.3. E n ª 8 MeV 294 Chapman (1978
Page 307 and 308:
1.5. E n = 14-15 MeV 296 Daroczy et
Page 309 and 310:
1.7. E n = 27.5 (22-33) MeV, Zölle
Page 311 and 312:
1.9. E n = 99.5 (89-110) MeV, Zöll
Page 313 and 314:
3. 302 239 Pu NEUTRON INDUCED FISSI
Page 316 and 317:
Appendix II DATA ADJUSTMENT FOR MAS
Page 318 and 319:
Vivès [II.8], Zöller [II.7] and
Page 320 and 321:
Annex 1 to Appendix II ADJUSTED DAT
Page 322 and 323:
Zöller (1995) [II.7] E n = 13 (11.
Page 324 and 325:
E n = 50 (45-55) MeV Post-neutron e
Page 326 and 327:
Äystö et al. (1998) [II.9] E p =
Page 328 and 329:
E n = 1.60 MeV Pre-neutron emission
Page 330 and 331:
E n = 27.5 (22-33) MeV Post-neutron
Page 332 and 333:
E n = 99.5 (89-110) MeV Post-neutro
Page 334 and 335:
Appendix III FISSION YIELD SYSTEMAT
Page 336 and 337:
FIG. III.6. Dependence of chain yie
Page 338 and 339:
TABLE III.2. Ln(y)-LINEAR(E) FIT CO
Page 340 and 341:
FIG. III.14. Dependence of paramete
Page 342 and 343:
FIG. III.26. Comparison of the mass
Page 344 and 345:
FIG. III.38. Comparison of the mass
Page 346 and 347:
TABLE III.3. QUADRATIC FUNCTION FIT
Page 348 and 349:
Uncertainty ratio or uncertainty Ad
Page 350:
CONTENTS OF THE CD-ROM The attached
Page 353:
This publication reports on a coord
show all

Fission Product Yield Data for the Transmutation of Minor Actinide ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?