COMPILATION OF NEUTRON RESONANCE PARAMETERS

NRF-3S.I.Sukhoruchkin

Petersburg Nuclear Physics Institute 188300 Gatchina Russia

WONDER 2009

Table 1. Contents of neutron resonance parameters compilation NRF-3

Isotope NB/NS Isotope NB/NS Isotope NB/NS Isotope NB/NS 9Be 11/11 45Sc 23/199 79Br 19/341* 108Pd 1/243 10B 4/16 46Ti 3/113 81Br 21/330 110Pd 0/231 11B 17/35 47Ti 4/118 78Kr 5/27 107Ag 4/439 12C 6/60 48Ti 9/87 80Kr 5/32 109Ag 3/459* 13C 1/38 49Ti 5/79 82Kr 2/176 110Cd 3/103 14N 34/62 50Ti 2/34 84Kr 1/207 111Cd 3/156 15N 26/47 51V 6/1073 86Kr 2/817 112Cd 4/121 16O 60/92 50Cr 2/382 85Rb 21/348 113Cd 2/514* 17O 2/6 52Cr 2/341 87Rb 19/100 114Cd 5/86 18O 1/21 53Cr 3/130 86Sr 7/74 116Cd 4/53 19F 23/77 54Cr 345/345 87Sr 3/116 113In 3/76 20Ne 3/102 55Mn 23/175 88Sr 20/444 115In 3/259 21Ne 2/39 54Fe 3/894 89Y 2/693 116Sn 3/218 22Ne 3/26 56Fe 2/1242 90Zr 45/250* 117Sn 2/103 23Na 4/250 57Fe 2/127 91Zr 157/530 118Sn 4/86 24Mg 23/42 58Fe 20/83 92Zr 3/148 119Sn 3/30 25Mg 12/35 59Co 218/774 93Zr 3/141 120Sn 3/348 26Mg 5/12 58Ni 3/1991 94Zr 7/276 122Sn 3/361 26Al 7/7 59Ni 4/15 96Zr 8/30 124Sn 4/192 27Al 1/378 60Ni 2/2601 93Nb 21/240 121Sb 9/300* 28Si 52/261 61Ni 181/1693 94Mo 30/60 123Sb 9/260* 29Si 30/34 62Ni 1/80 95Mo 59/109 122Te 15/396 30Si 26/31 64Ni 24/56 96Mo 75/75 123Te 3/361 31P 23/375* 63Cu 23/548 97Mo 107/107 124Te 4/442 32S 3/105 65Cu 14/450 98Mo 159/159 125Te 6/297 33S 2/58 64Zn 2/402 100Mo 102/125 126Te 5/321 34S 6/82 66Zn 2/400 99Tc 22/693 128Te 5/40 35Cl 268/274 67Zn 7/505 100Ru 3/91 130Te 4/23 36Cl 17/17 68Zn 17/292 101Ru 4/174 127I 729/729 37Cl 140/144 70Zn 5/192 102Ru 4/176 129I 406/406 37Ar 4/4 75As 23/247* 104Ru 4/107 124Xe 5/5 40Ar 6/313 76Se 5/22 103Rh 26/294 126Xe 5/5 39K 4/207 77Se 2/58 104Pd 1/326 128Xe 15/15 41K 6/283 78Se 2/21 105Pd 3/322 129Xe 2/71 40Ca 2/257* 80Se 3/15 106Pd 1/320 130Xe 19/19 42Ca 2/95* 82Se 2/19 107Pd 1/133 131Xe 24/48

Table 1 (continued)

Isotope NB/NS Isotope NB/NS Isotope NB/NS Isotope NB/NS 132Xe 1/7 152Sm 4/118 173Yb 2/167 229Th 1/31 134Xe 1/7 154Sm 9/87 174Yb 2/79 230Th 1/30 135Xe 1/1 151Eu 5/79 176Yb 2/69 232Th 920/1260* 136Xe 1/36 152Eu 2/34 175Lu 3/449 231Pa 3/138 133Cs 324/327 153Eu 6/1073 176Lu 2/59 232Pa 1/33 134Cs 1/8 154Eu 2/382 174Hf 11/11 233Pa 93/93 135Cs 2/7 155Eu 2/341 176Hf 7/128 232U 0/44 130Ba 2/41 152Gd 3/130 187Re 5/399 233U 0/770* 132Ba 3/18 153Gd 345/345 186Os 4/133* 234U 2/144 133Ba 6/6 154Gd 23/175 187Os 2/311 235U 0/3184* 134Ba 21/311 155Gd 3/894 188Os 2/115 236U 12/297 135Ba 90/156 156Gd 2/1242 189Os 1/713 237U 0/36 136Ba 3/295 157Gd 2/127 190Os 1/24 238U 3302/3606*137Ba 2/82 158Gd 20/83 192Os 1/20 236Np 1/41 138Ba 3/147 160Gd 2/58 191Ir 3/63 237Np 2/1214 138La 2/11 159Tb 3/504 192Ir 2/11 238Np 1/17 139La 86/181 160Tb 4/4 193Ir 2/54 236Pu 2/2 136Ce 1/10 156Dy 4/20 192Pt 156/156 238Pu 1/64 140Ce 1/199* 158Dy 7/7 194Pt 5/8 239Pu 4/1040* 141Ce 0/7 160Dy 5/114 195Pt 3/45 240Pu 6/430* 142Ce 1/77 161Dy 9/256 196Pt 6/6 241Pu 35/243 141Pr 16/350 162Dy 8/142 198Pt 5/5 242Pu 0/255* 143Pr 3/6 163Dy 3/131 197Au 265/265 244Pu 0/35* 142Nd 95/98 164Dy 6/117 198Hg 1/73 241Am 35/195 143Nd 15/151 165Ho 4/374 199Hg 2/88 242Amm 4/106 144Nd 102/102 162Er 2/18 200Hg 3/45 243Am 16/241 145Nd 24/213 164Er 2/19 201Hg 2/86 242Cm 0/13 146Nd 2/119 166Er 2/175 202Hg 2/38 243Cm 0/105 147Nd 1/12 167Er 6/277 204Hg 1/23 244Cm 0/68 148Nd 12/160 168Er 0/130 203Tl 6/139 245Cm 1/91 150Nd 11/92 170Er 0/125 204Tl 2/2 246Cm 1/17 147Pm 20/42 169Tm 1/431 205Tl 6/445 247Cm 1/44 144Sm 129/207 170Tm 0/13 204Pb 540/829 248Cm 1/51 147Sm 144/222 168Yb 7/7 206Pb 321/772 249Bk 2/40 148Sm 26/26 169Yb 2/22 207Pb 29/950 249Cf 1/63 149Sm 3/160 170Yb 2/24 208Pb 3/129 250Cf 4/4 150Sm 3/25 171Yb 2/170 209Bi 35/134 251Cf 4/4 151Sm 3/113 172Yb 2/101 226Ra 1/41 252Cf 22/37

Fig. 1 a). Spacing distribution in all Th-232 resonances.

Fig. 1b). Spacing distribution in strong Th-232 resonances.

Fig. 1c). Spacing distribution in all Sb-123 resonances.

Fig. 1d). Distribution of intervals D AIM adjacent to fixed D=373 eV.

Fig. 1 e). Distribution of neutron resonance positions (known in 70-ties) by selection 1/10 eV and 1/100 eV.

Table 2. Excitations in heavy nuclei close to 42.5 keV=ε0/24 and m (85 keV= ε0/12)

Nucl. 229Th 230Th 230Th 231Th 232U 234U 236U

J π 0, 5/2+, 0+, D 5/2+, 0+,2+ 0+,12+ 2+ 8+ 12+ 0+,2+

J π i 7/2+ 8+ 7/2+

E*, 42.5 594 594 42.0 47.6 1111 43.5 497 1024 45.2 keV M 1/2 7 7 1/2 (1/2) 13 1/2 6 12 1/2 m·85 42.5 595 595 42.5 42.5 1112 42.5 511 1022 42.5

keV

Nucl. 236U 237U 238U 239U

J π 0 D D 1/2+, 0+,2+ 8+ D 5/2+, D D D

, J π i 17/2+ 7/2+

E*, 512 1022 518 44.9 518 512 42.5 43 87 170 keV M 6 12 6 ½ 6 6 1/2 1/2 1 2 m·85 511 1022 511 42.5 511 511 42.5 42.5 85 170 keV

Nucl. 236Pu 237Pu 240Pu 241Pu 242Pu 244Pu

J π 0 0+,2+ 8+ 0+,2+ 8+ 0+,2+ 8+ 5/2+, 0+,2+ 8+ 2+

, J π i 7/2+

E*, 44.6 516 44.1 514 42.8 497 42.0 44.5 518 44.2 keV M 1/2 6 1/2 6 1/2 6 1/2 1/2 6 1/2 m·85 42,5 511 42.5 511 42.5 511 42.5 42.5 511 42.5 keV

Fig. 2a). Spacing distribution of relatively strong Pu-240 resonances and sum distribution of all Pu-242 and Pu-244 resonances.

Spacing distribution of relatively strong O+ Pu-239 resonances, the same for U-238.

Mean values of level energies and intervals D in rotational bands .

m 1 2 2x2 2x2 3 3-2 5

J(J+1) 0 6 20 72

J0π 0+ 2+ 4+ 8+

Energy 0 42.5 142 99.5 511

D(keV) 85 85 99

D(eV) 99 99 597 525 22 572

Nucl. 243,245Pu 241Pu 241Pu 240Pu 233Th 233Th

nx11eV 9 9 6x9 4x12 2 4x13

Fig. 3. D-distribution of Pu-239 1+ resonances and 0+ resonances.

Parameters of relatively strong 0+ Pu-239 resonances.

E0, 61 85 131 195 204.1 262 367 456 510 525 575 798

eV

gΓn 28 49 36 54 64 85 70 77 146 253 150 136

gΓn0 3 5 3 3 4 5 3 3 6 11 6 481

Sum.Γf 7105 1895 3952 641 457 5320 368 320 1873 11470 188 9198

Eo 1/8 1/4 1/2 (1) 1.0 3/2

ratio

525/8 65 131 196 196 262 459 525 591 788

n 1 2 3 3 4 7 (8) 8 (9) 12

Diff 4 1 1 1 3 10

Fig. 4 a). Spacing distributions in Te-124 and Xe-130.

Spacing distributions in La-140 and Sb-123.

Spacing distributions in Sb-122 and Sb-124.

Spacing distributions in Ir-194.