ENTRY 22389 20051202 21752238900000001 SUBENT 22389001 20051202 21752238900100001 BIB 14 47 2238900100002 TITLE Neutron capture resonances in 142-Nd and 144-Nd 2238900100003 AUTHOR (K.WISSHAK,F.VOSS,F.KAEPPELER) 2238900100004 INSTITUTE (2GERKFK) 2238900100005 REFERENCE (J,PR/C,57,(6),3452,199806) Main reference, reanalysis 2238900100006 of data given in reference 2 2238900100007 (R,KFK-5968,199708) Data are given 2238900100008 new series, FZKA-5968 2238900100009 (R,KFK-5967,199708) Experimental details 2238900100010 new series, FZKA-5967 2238900100011 (J,PR/C,57,391,1998) Experimental details 2238900100012 FACILITY (VDG) 3.75 MV Van de Graaff accelerator 2238900100013 pulse width is 1 ns, repetition rate 250 KHz, 2238900100014 average beam current 1.5 microamp 2238900100015 METHOD (TOF) Flight path is 78 cm 2238900100016 DETECTOR (D4PI,SCIN) Karlsruhe 4pi-Ba-F2 detector consisting of 2238900100017 42 hexagonal and pentagonal crystals forming 2238900100018 a spherical Ba-F2 shell of 15 cm thickness and 20 cm 2238900100019 inner diameter. Resolution is 7 percent at 2.5 MeV 2238900100020 gamma energy, time resolution 500 PS, peak efficiency 2238900100021 90 percent at 1 MeV 2238900100022 INC-SOURCE (P-LI7) Metallic Li target of about 1 mg/cm2 2238900100023 INC-SPECT .Proton beam energy adjusted so to be 30 and 100 KeV 2238900100024 above the reaction 7-Li(P,N)7-be threshold 1.881 MeV 2238900100025 giving neutrons in energy ranges 3-100, 3-200 KeV 2238900100026 SAMPLE .Standard sample Au-197, 22.02 mm diameter, 0.26 mm == 2238900100027 1.5048e-3 atoms/B thickness,weight 1.8709 gram, 2238900100028 enclosing aluminium canning 0.5314 g 2238900100029 .Lead sample 22.06 mm diameter, 1.8 mm == 5.8196e-3 2238900100030 atoms/B thickness, weight 0.5420 gram, enclosing Al 2238900100031 canning 0.5420 gram 2238900100032 .Graphite sample 22.08 mm diameter, 1.41 mm == 2238900100033 11.9041e-3 atoms/B thickness, 0.9091 gram weight, 2238900100034 enclosing aluminium canning 0.5300 g 2238900100035 .Empty aluminium canning 0.5540 gram 2238900100036 CORRECTION .Corrections were made for multiple scattering, 2238900100037 for neutron self-absorption, for undetected events, 2238900100038 for signal/background ratio for different max neutron 2238900100039 energy. 2238900100040 . Additional corrections were made for europium and 2238900100041 samarium contamination being 4 and 1.6 pc. More exact 2238900100042 sample composition was determined with the help of 2238900100043 activation measurements of all samples exposed in 2238900100044 thermal neutron field 2238900100045 ERR-ANALYS (ERR-T) Total error 2238900100046 STATUS (COREL,22388001) 2238900100047 HISTORY (19980715C) + + Compiled by SM 2238900100048 (20051202A) Corrected SM 2238900100049 ENDBIB 47 0 2238900100050 NOCOMMON 0 0 2238900100051 ENDSUBENT 50 0 2238900199999 SUBENT 22389002 20051202 21752238900200001 BIB 8 28 2238900200002 REACTION 1(60-ND-142(N,0),,EN) Resonance energy 2238900200003 2(60-ND-142(N,0),,ARE,,FCT) Resonance area equal to 2238900200004 g*(N-wid)*(g-wid)/((N-wid)+(g-wid)) 2238900200005 ANALYSIS (SHAPE) TOF spectra analysed with FANAC code 2238900200006 REL-REF (R,,K.H.GUBER,W,GUBER,1990) Privat communication 2238900200007 of K.H.GUBER, year known inexactly 2238900200008 ASSUMED (ASSUM,60-ND-142(N,EL),,WID,,G) Assumed value taken 2238900200009 from JENDL-3 evaluation 2238900200010 SAMPLE .Isotopically enriched neodymium oxide powder disk 2238900200011 pressed to 20.94 mm diameter pellets in alum canning 2238900200012 with 0.2 mm thick walls,its weight 0.5879 gram. 2238900200013 Sum of all Nd isotopes thickness is 4.74 mm == 2238900200014 6.6374E-3 atoms/B, weight of Nd2-O3 oxide is 6.9587 g 2238900200015 isotopic composition of the two samples used is 2238900200016 Nd-142 content is 95.0 and 95.73% , 2238900200017 Nd-143 content is 2.7 and 2.43% , 2238900200018 Nd-144 content is 1.5 and 1.25% , 2238900200019 Nd-145 content is 0.3 and 0.22% , 2238900200020 Nd-146 content is 0.3 and 0.27% , 2238900200021 Nd-148 content is 0.1 and 0.06% , 2238900200022 Nd-150 content is 0.1 and 0.04% 2238900200023 COMMENT .Statistical weight, (elastic width)*g and angular 2238900200024 momentum are taken from JENDL-3 evaluation 2238900200025 STATUS .Data taken from table 1 of main reference 2238900200026 FLAG (1.) Resonance energy was taken as fixed parameter 2238900200027 (2.) Resonance area adopted as fixed parameter 2238900200028 from REL-REF 2238900200029 (3.) N-WIDTH*G has adopted value 2238900200030 ENDBIB 28 0 2238900200031 NOCOMMON 0 0 2238900200032 DATA 8 52 2238900200033 DATA 1DATA 2ERR-T 2ASSUM STAT-W G MOMENTUM L 2238900200034 FLAG FLAG 2238900200035 KEV MILLI-EV MILLI-EV MILLI-EV NO-DIM NO-DIM 2238900200036 NO-DIM NO-DIM 2238900200037 3.277 24.6 2.7 64. 1. 1.2238900200038 2238900200039 3.391 56.0 4.8 343. 0.2238900200040 2238900200041 3.993 51.9 5.2 828. 0.2238900200042 2238900200043 4.142 20.0 3.1 85. 1. 1.2238900200044 2238900200045 4.540 49.5 6.6 7572. 0.2238900200046 2238900200047 5.054 39.4 2.6 78. 2. 1.2238900200048 2238900200049 5.152 38.7 2.4 90. 2. 1.2238900200050 2238900200051 5.414 50.8 2.7 98. 2. 1.2238900200052 2238900200053 5.475 50.7 5.1 3305. 0.2238900200054 1. 2238900200055 5.951 7.9 38. 1. 1.2238900200056 1. 2. 2238900200057 5.965 45.5 4.6 1437. 0.2238900200058 2238900200059 6.225 51.0 3.0 122. 2. 1.2238900200060 2238900200061 6.905 69.5 7.5 575. 0.2238900200062 2238900200063 6.935 23.3 4.8 72. 1. 1.2238900200064 1. 2238900200065 7.217 50.6 4.2 548. 0.2238900200066 2238900200067 7.627 82.1 4.9 600. 0.2238900200068 3. 2238900200069 8.231 39.4 2.2 533. 0.2238900200070 2238900200071 8.392 51.5 2.6 1944. 0.2238900200072 2238900200073 8.767 71.2 2.0 284. 2. 1.2238900200074 2238900200075 8.974 123.8 2.7 192. 0.2238900200076 2238900200077 9.793 59.1 5.6 290. 2. 1.2238900200078 1. 2238900200079 9.841 84.1 8.9 11840. 0.2238900200080 1. 2238900200081 10.11 84.2 3.9 540. 2. 1.2238900200082 2238900200083 10.24 30.6 3.3 66. 1. 1.2238900200084 1. 2238900200085 10.91 51.6 5.0 10540. 0.2238900200086 2238900200087 11.09 51.4 3.4 90. 2. 1.2238900200088 1. 2238900200089 11.20 31.9 3.4 109. 1. 1.2238900200090 1. 2238900200091 11.42 39.6 3.6 210. 1. 1.2238900200092 2238900200093 12.86 86.4 6.3 526. 2. 1.2238900200094 2238900200095 13.37 59.9 5.7 96. 2. 1.2238900200096 1. 2238900200097 13.46 98.4 16.5 4282. 0.2238900200098 1. 2238900200099 13.58 134.4 16.0 89450. 0.2238900200100 1. 2238900200101 14.18 46.4 6.3 190. 1. 1.2238900200102 2238900200103 14.40 60.5 5.6 112. 2. 1.2238900200104 2238900200105 14.93 10.4 52. 1. 1.2238900200106 1. 2. 2238900200107 14.98 68.6 6.4 174. 2. 1.2238900200108 2238900200109 15.36 43.2 4.4 12890. 0.2238900200110 1. 2238900200111 15.56 67.1 3.2 106. 2. 1.2238900200112 2238900200113 15.83 68.6 3.6 254. 2. 1.2238900200114 2238900200115 16.15 56.1 7.6 54290. 0.2238900200116 1. 2238900200117 16.25 70.1 5.6 346. 2. 1.2238900200118 1. 2238900200119 16.96 76.2 3.8 1360. 2. 1.2238900200120 2238900200121 17.24 61.8 3.5 114. 2. 1.2238900200122 2238900200123 17.95 45.3 4.8 351. 1. 1.2238900200124 2238900200125 18.95 76.3 5.5 280. 2. 1.2238900200126 1. 2238900200127 19.13 16.7 9.2 103. 1. 1.2238900200128 1. 2238900200129 19.23 77.3 13.8 46580. 0.2238900200130 1. 2238900200131 19.48 5.7 4.2 78. 1. 1.2238900200132 1. 2238900200133 19.81 52.8 4.1 106. 2. 1.2238900200134 1. 2238900200135 20.08 89.9 4.7 212. 2. 1.2238900200136 1. 2238900200137 20.41 81.2 4.4 144. 2. 1.2238900200138 1. 2238900200139 20.71 25.7 4.1 85. 1. 1.2238900200140 1. 2238900200141 ENDDATA 108 0 2238900200142 ENDSUBENT 141 0 2238900299999 SUBENT 22389003 20051202 21752238900300001 BIB 7 29 2238900300002 REACTION 1(60-ND-144(N,0),,EN) Resonance energy 2238900300003 2(60-ND-144(N,0),,ARE,,FCT) Resonance area equal to 2238900300004 g*(N-wid)*(g-wid)/((N-wid)+(g-wid)) 2238900300005 ASSUMED (ASSUM,60-ND-144(N,EL),,WID,,G) Assumed value taken 2238900300006 from JENDL-3 evaluation 2238900300007 REL-REF (R,,K.H.GUBER,W,GUBER,1990) Privat communication 2238900300008 of K.H.GUBER, year known inexactly 2238900300009 SAMPLE .Isotopically enriched neodymium oxide powder disk 2238900300010 pressed to 21.39 mm diameter pellets in alum canning 2238900300011 with 0.2 mm thick walls,its weight 0.6939 gram. 2238900300012 Sum of all Nd isotopes thickness is 4.56 mm == 2238900300013 7.0125e-3 atoms/B, weight of Nd2-O3 oxide is 7.4371 g 2238900300014 isotopic composition of the two samples used is 2238900300015 Nd-142 content is 2.7 and 2.61% , 2238900300016 Nd-143 content is 5.7 and 5.51% , 2238900300017 Nd-144 content is 81.5 and 82.13% , 2238900300018 Nd-145 content is 7.9 and 7.83% , 2238900300019 Nd-146 content is 2.0 and 1.75% , 2238900300020 Nd-148 content is 0.2 and 0.11% , 2238900300021 Nd-150 content is 0.06 and 0.06 % 2238900300022 COMMENT .Statistical weight and angular momentum are taken 2238900300023 from JENDL-3 evaluation 2238900300024 STATUS . Data taken from table 2 of main reference 2238900300025 FLAG (1.) Resonance energy was taken as fixed parameter 2238900300026 (2.) Resonance area was taken as fixed parameter 2238900300027 from REL-REF 2238900300028 (3.) Assumed value (N-width)*g calculated from theory,2238900300029 "STAT-W G" and "MOMENTUM L" are arbitrarily set 2238900300030 to unity 2238900300031 ENDBIB 29 0 2238900300032 NOCOMMON 0 0 2238900300033 DATA 9 78 2238900300034 DATA 1DATA 2ERR-T 2ASSUM STAT-W G MOMENTUM L 2238900300035 FLAG FLAG FLAG 2238900300036 KEV MILLI-EV MILLI-EV MILLI-EV NO-DIM NO-DIM 2238900300037 NO-DIM NO-DIM NO-DIM 2238900300038 2.776 111.0 7.9 4091. 0.2238900300039 2238900300040 2.958 24.9 2.1 60. 1. 1.2238900300041 2238900300042 3.553 45.6 9.1 15940. 0.2238900300043 2238900300044 3.677 24.4 3.2 84. 1. 1.2238900300045 2238900300046 3.752 47.1 10.3 1386. 0.2238900300047 1. 2238900300048 3.766 28.2 5.6 55. 1. 1.2238900300049 2238900300050 4.240 28.8 3.2 54. 1. 1.2238900300051 2238900300052 4.611 42.9 3.6 130. 1. 1.2238900300053 2238900300054 4.748 79.1 9.5 305. 0.2238900300055 2238900300056 4.937 83.2 12.6 24370. 0.2238900300057 1. 2238900300058 4.962 49.4 8.1 207. 1. 1.2238900300059 1. 2238900300060 5.148 35.6 3.3 74. 1. 1.2238900300061 2238900300062 5.660 68.0 10.9 3398. 0.2238900300063 2238900300064 5.862 67.7 6.2 85. 1. 1.2238900300065 2238900300066 6.106 85.9 18.6 13530. 0.2238900300067 1. 2238900300068 6.127 36.2 10.5 100. 1. 1.2238900300069 1. 2238900300070 6.730 25.7 7.6 74. 1. 1.2238900300071 1. 2238900300072 6.778 47.3 116. 2. 2238900300073 1. 1. 2. 2238900300074 6.788 94.7 22.1 48300. 0.2238900300075 1. 2238900300076 7.021 59.6 10.9 71. 2. 1.2238900300077 1. 2238900300078 7.053 64.0 16.6 3477. 0.2238900300079 1. 2238900300080 7.178 33.5 5.5 63. 1. 1.2238900300081 2238900300082 7.398 63.8 3.3 140. 1. 1.2238900300083 2238900300084 7.510 50.1 5.4 5195. 0.2238900300085 1. 2238900300086 7.815 53.0 2.8 94. 1. 1.2238900300087 2238900300088 7.944 28.7 3.4 57. 1. 1.2238900300089 2238900300090 8.190 98.3 10.0 14370. 0.2238900300091 1. 2238900300092 8.223 12.8 6.1 81. 1. 1.2238900300093 1. 2238900300094 8.403 44.9 3.1 100. 1. 1.2238900300095 2238900300096 8.847 53.3 14.3 3138. 0.2238900300097 1. 2238900300098 8.865 49.8 85. 1. 2238900300099 1. 1. 2. 2238900300100 9.118 63.3 9.0 120. 1. 1.2238900300101 2238900300102 9.236 22.4 89. 1. 2238900300103 1. 1. 2. 2238900300104 9.330 47.6 15.1 106. 1. 1.2238900300105 1. 2238900300106 9.368 45.6 15.0 36290. 0.2238900300107 1. 2238900300108 9.544 91.2 9.5 61. 1. 1.2238900300109 2238900300110 9.740 105.4 17.1 47930. 0.2238900300111 2238900300112 9.945 82.9 7.6 133. 1. 1.2238900300113 1. 2238900300114 10.02 48.5 8.0 64. 1. 1.2238900300115 1. 2238900300116 10.11 126.5 8.0 150. 2. 1.2238900300117 1. 2238900300118 10.69 55.8 66. 2. 2238900300119 1. 1. 2. 2238900300120 10.69 115.3 12.2 58500. 0.2238900300121 1. 2238900300122 11.25 117.2 10.0 18590. 0.2238900300123 1. 2238900300124 11.40 79.7 7.1 120. 2. 1.2238900300125 1. 2238900300126 11.64 68.1 11.5 15930. 0.2238900300127 1. 2238900300128 11.73 39.1 7.9 53. 1. 1.2238900300129 1. 2238900300130 12.07 48.5 6.8 100. 1. 1.2238900300131 1. 3. 2238900300132 12.19 64.5 9.8 4322. 0.2238900300133 1. 2238900300134 12.45 42.7 7.9 120. 1. 1.2238900300135 3. 2238900300136 12.65 40.1 7.4 120. 1. 1.2238900300137 3. 2238900300138 13.14 27.6 130. 1. 1.2238900300139 1. 2. 3. 2238900300140 13.23 89.9 14.7 61820. 0.2238900300141 1. 2238900300142 13.38 109.3 10.1 140. 1. 1.2238900300143 1. 3. 2238900300144 13.56 123.8 13.2 14180. 0.2238900300145 1. 2238900300146 13.83 42.5 8.4 150. 1. 1.2238900300147 1. 3. 2238900300148 13.98 92.1 15.1 41000. 0.2238900300149 1. 2238900300150 14.47 104.5 11.8 2917. 0.2238900300151 2238900300152 14.82 42.9 150. 1. 1.2238900300153 1. 2. 3. 2238900300154 15.00 106.1 9.4 184. 1. 1.2238900300155 3. 2238900300156 15.25 94.7 9.3 2270. 0.2238900300157 2238900300158 15.50 126.7 9.2 185. 2. 1.2238900300159 3. 2238900300160 15.82 113.5 11.0 200. 1. 1.2238900300161 3. 2238900300162 16.18 78.0 13.2 180. 1. 1.2238900300163 1. 3. 2238900300164 16.30 194.5 22.8 58710. 0.2238900300165 1. 2238900300166 16.70 93.8 19.4 26200. 0.2238900300167 1. 2238900300168 16.82 108.1 20.5 33900. 0.2238900300169 1. 2238900300170 17.33 84.2 12.7 200. 1. 1.2238900300171 1. 3. 2238900300172 17.52 117.2 15. 10840. 0. 2238900300173 1. 2238900300174 17.57 82.3 200. 1. 1.2238900300175 1. 2. 3. 2238900300176 17.98 102.5 12.2 210. 1. 1.2238900300177 1. 3. 2238900300178 18.18 146.1 23.0 8432. 0.2238900300179 1. 2238900300180 18.30 73.5 16.6 220. 1. 1.2238900300181 1. 3. 2238900300182 18.50 177.6 17.7 40830. 1.2238900300183 1. 2238900300184 18.95 98.0 11.5 240. 1. 1.2238900300185 3. 2238900300186 19.20 102.7 11.5 240. 1. 1.2238900300187 3. 2238900300188 19.48 104.6 18.2 28590. 0.2238900300189 1. 2238900300190 19.63 88.5 13.8 260. 1. 1.2238900300191 1. 3. 2238900300192 19.90 104.3 11.1 260. 1. 1.2238900300193 3. 2238900300194 ENDDATA 160 0 2238900300195 ENDSUBENT 194 0 2238900399999 SUBENT 22389004 20051202 21752238900400001 BIB 3 5 2238900400002 REACTION (60-ND-142(N,G)60-ND-143,,SIG,,AV) Capture sigma 2238900400003 averaged over energy interval given in data section 2238900400004 ANALYSIS .Data are obtained from resonance parameters 2238900400005 STATUS . Data are taken from Table 3 of main reference 2238900400006 (DEP,22389002) 2238900400007 ENDBIB 5 0 2238900400008 NOCOMMON 0 0 2238900400009 DATA 4 6 2238900400010 EN-MIN EN-MAX DATA ERR-T 2238900400011 KEV KEV MB MB 2238900400012 3. 5. 109.4 5.5 2238900400013 5. 7.5 118.7 3.5 2238900400014 7.5 10. 96.6 2.3 2238900400015 10. 12.5 44.8 1.4 2238900400016 12.5 15. 68.2 3.3 2238900400017 15. 20. 34.6 1. 2238900400018 ENDDATA 8 0 2238900400019 ENDSUBENT 18 0 2238900499999 SUBENT 22389005 20051202 21752238900500001 BIB 3 5 2238900500002 REACTION (60-ND-144(N,G)60-ND-145,,SIG,,AV) Capture sigma 2238900500003 averaged over energy interval given in data section 2238900500004 ANALYSIS .Data are obtained from resonance parameters 2238900500005 STATUS . Data are taken from Table 3 of main reference 2238900500006 (DEP,22389003) 2238900500007 ENDBIB 5 0 2238900500008 NOCOMMON 0 0 2238900500009 DATA 4 6 2238900500010 EN-MIN EN-MAX DATA ERR-T 2238900500011 KEV KEV MB MB 2238900500012 3. 5. 205.5 12. 2238900500013 5. 7.5 176.0 10. 2238900500014 7.5 10. 158.9 6.6 2238900500015 10. 12.5 120.6 4.2 2238900500016 12.5 15. 93.3 4.0 2238900500017 15. 20. 99.2 3.1 2238900500018 ENDDATA 8 0 2238900500019 ENDSUBENT 18 0 2238900599999 SUBENT 22389006 20051202 21752238900600001 BIB 3 5 2238900600002 REACTION (60-ND-142(N,G)60-ND-143,,SIG,,MXW) 2238900600003 ANALYSIS .Data are obtained from resonance parameters 2238900600004 STATUS . Data are taken from Table 4 of main reference 2238900600005 (DEP,22389002) 2238900600006 (DEP,22389004) 2238900600007 ENDBIB 5 0 2238900600008 NOCOMMON 0 0 2238900600009 DATA 3 5 2238900600010 KT DATA ERR-T 2238900600011 KEV MB MB 2238900600012 10.0 65.1 1.9 2238900600013 12.0 58.4 1.6 2238900600014 20.0 43.4 0.9 2238900600015 25. 38.4 0.8 2238900600016 30. 35.0 0.7 2238900600017 ENDDATA 7 0 2238900600018 ENDSUBENT 17 0 2238900699999 SUBENT 22389007 20051202 21752238900700001 BIB 3 5 2238900700002 REACTION (60-ND-144(N,G)60-ND-145,,SIG,,MXW) 2238900700003 ANALYSIS .Data are obtained from resonance parameters 2238900700004 STATUS . Data are taken from Table 4 of main reference 2238900700005 (DEP,22389003) 2238900700006 (DEP,22389005) 2238900700007 ENDBIB 5 0 2238900700008 NOCOMMON 0 0 2238900700009 DATA 3 5 2238900700010 KT DATA ERR-T 2238900700011 KEV MB MB 2238900700012 10.0 147.0 4.5 2238900700013 12.0 131.3 3.6 2238900700014 20.0 98.9 2.1 2238900700015 25. 85.5 1.7 2238900700016 30.0 81.3 1.5 2238900700017 ENDDATA 7 0 2238900700018 ENDSUBENT 17 0 2238900799999 ENDENTRY 7 0 2238999999999