ENTRY 32628 20100219 31473262800000001 SUBENT 32628001 20100219 31473262800100001 BIB 16 54 3262800100002 TITLE Determination of the yields for the rare-earth 3262800100003 nuclides from 14 MeV neutron fission of U-238 using 3262800100004 a Ge(Li) detector. 3262800100005 AUTHOR (Li Wenxin,Sun Tongyu,Zhen Manjiao,Dong Tianrong, 3262800100006 Sun Xiuhua) 3262800100007 INSTITUTE (3CPRIMP) 3262800100008 REFERENCE (J,HFH,5,(2),176,198305) 3262800100009 SAMPLE Uranium nitrate (natural uranium) 3262800100010 FACILITY (CCW,3CPRIMP) 600 kV cockcroft walton accelerator 3262800100011 INC-SOURCE (D-T) 3262800100012 neutron flux about (1-2) x 10**11 neutrons/4Pi/sec, 3262800100013 average neutron energy=14.7+-0.4 MeV 3262800100014 METHOD (CHSEP,FPGAM) 3262800100015 first, fission products were separated from the 3262800100016 irradiated samples by radiochemistry methods and 3262800100017 weighted for the determination of the chemical yield. 3262800100018 Then fission product gamma rays were measured with 3262800100019 calibrated Ge(Li) detector for determining the 3262800100020 cumulative fission yield. 3262800100021 DETECTOR (GELI) A 140 cm3 coaxial Ge(Li) detector, resolution 3262800100022 was 2.8 keV at 1.332 MeV of Co-60, together with a 3262800100023 4096 channel analyser. The relative detection 3262800100024 efficiency was calibrated using well know intensity 3262800100025 gamma ray sources. 3262800100026 PART-DET (DG) 3262800100027 MONITOR (92-U-238(N,F)42-MO-99,CUM,FY) 3262800100028 DECAY-DATA The decay data given below were used for decay 3262800100029 correction in calculating the cumulative yields. 3262800100030 (39-Y-93,10.1HR,DG,266.9,0.0698) 3262800100031 (58-CE-141,32.4D,DG,145.4,0.48) 3262800100032 (57-LA-142,1.59HR,DG,641.2,0.475,DG,894.8,0.086) 3262800100033 (58-CE-143,1.375D,DG,293.3,0.413) 3262800100034 (58-CE-144,284.3D,DG,133.5,0.108) 3262800100035 (59-PR-145,5.98HR,DG,675.8,0.00375,DG,748.3,0.00427) 3262800100036 (60-ND-147,11.1D,DG,319.4,0.0205,DG,531.0,0.133) 3262800100037 (60-ND-149,1.73HR,DG,211.3,0.273) 3262800100038 (61-PM-149,53.1HR,DG,285.9,0.031) 3262800100039 (61-PM-151,28.4HR,DG,340.1,0.224) 3262800100040 (62-SM-153,46.7HR,DG,103.2,0.283) 3262800100041 (62-SM-156,9.4HR,DG,203.8,0.23) 3262800100042 (63-EU-156,15.19D,DG,1230.4,0.089) 3262800100043 (63-EU-157,15.149HR,DG,411.0,0.19) 3262800100044 CORRECTION Made for the loss of photoelectrons due to cascade 3262800100045 gamma rays coincidence and counting dead time. 3262800100046 ERR-ANALYS (DATA-ERR) Errors given in the data Table are total 3262800100047 experimental errors, they contain mainly: 3262800100048 * the detection efficiency, 3262800100049 * least-squares fit of gamma photoelectron peak, 3262800100050 * counting statistics, and 3262800100051 * correction for cascade gamma rays. 3262800100052 STATUS (TABLE) Data taken from Table 2 of J.HFH,5,(2),176,19833262800100053 HISTORY (19950810C) Compiled by Liang Qichang (CNDC) 3262800100054 (20100219A) SD:Updated to new date formats,lower case. 3262800100055 EN was corrected: 14.0 => 14.7; EN-ERR added. 3262800100056 ENDBIB 54 0 3262800100057 COMMON 3 3 3262800100058 EN EN-ERR MONIT 3262800100059 MEV MEV PC/FIS 3262800100060 14.7 0.4 5.60 3262800100061 ENDCOMMON 3 0 3262800100062 ENDSUBENT 61 0 3262800199999 SUBENT 32628002 20100219 31473262800200001 BIB 3 3 3262800200002 REACTION (92-U-238(N,F)ELEM/MASS,CUM,FY) 3262800200003 ANALYSIS Experimental data processed using the code GAMAPU. 3262800200004 STATUS (COREL,32628003) 3262800200005 ENDBIB 3 0 3262800200006 NOCOMMON 0 0 3262800200007 DATA 4 14 3262800200008 ELEMENT MASS DATA DATA-ERR 3262800200009 NO-DIM NO-DIM PC/FIS PC/FIS 3262800200010 39. 93. 4.77 0.40 3262800200011 57. 142. 3.59 0.34 3262800200012 58. 141. 4.44 0.41 3262800200013 58. 143. 4.32 0.35 3262800200014 58. 144. 4.00 0.53 3262800200015 59. 145. 2.93 0.45 3262800200016 60. 147. 2.44 0.36 3262800200017 60. 149. 1.30 0.13 3262800200018 61. 149. 2.43 0.32 3262800200019 61. 151. 0.80 0.09 3262800200020 62. 153. 0.83 0.21 3262800200021 62. 156. 0.13 0.02 3262800200022 63. 156. 0.12 0.02 3262800200023 63. 157. 0.078 0.010 3262800200024 ENDDATA 16 0 3262800200025 ENDSUBENT 24 0 3262800299999 SUBENT 32628003 20100219 31473262800300001 BIB 3 6 3262800300002 REACTION (92-U-238(N,F)ELEM/MASS,CUM,FY) 3262800300003 ANALYSIS The data given below was the same experimental data 3262800300004 as in subent 2 but processed using another code GAMA81.3262800300005 These data are in agreement with the other published 3262800300006 data better than the above subent (Subent 2). 3262800300007 STATUS (COREL,32628002) 3262800300008 ENDBIB 6 0 3262800300009 NOCOMMON 0 0 3262800300010 DATA 4 14 3262800300011 ELEMENT MASS DATA DATA-ERR 3262800300012 NO-DIM NO-DIM PC/FIS PC/FIS 3262800300013 39. 93. 4.53 0.35 3262800300014 57. 142. 3.50 0.33 3262800300015 58. 141. 4.25 0.36 3262800300016 58. 143. 3.99 0.33 3262800300017 58. 144. 3.64 0.48 3262800300018 59. 145. 2.81 0.56 3262800300019 60. 147. 2.18 0.21 3262800300020 60. 149. 1.44 0.12 3262800300021 61. 149. 1.77 0.23 3262800300022 61. 151. 0.76 0.09 3262800300023 62. 153. 0.77 0.18 3262800300024 62. 156. 0.14 0.02 3262800300025 63. 156. 0.12 0.03 3262800300026 63. 157. 0.077 0.011 3262800300027 ENDDATA 16 0 3262800300028 ENDSUBENT 27 0 3262800399999 ENDENTRY 3 0 3262899999999