ENTRY 13310 20210107 14751331000000001 SUBENT 13310001 20210107 14751331000100001 BIB 8 29 1331000100002 TITLE Mass and nuclear charge distributions from the 1331000100003 spontaneous fission of 254Fm 1331000100004 AUTHOR (R.M.Harbour,K.W.MacMurdo,D.E.Troutner,M.V.Hoehn) 1331000100005 INSTITUTE (1USASRL) 1331000100006 REFERENCE (J,PR/C,8,1488,1973) 1331000100007 #doi:10.1103/PhysRevC.8.1488 1331000100008 #NSR: 1973HA44 1331000100009 SAMPLE About 15 ug of 253Es was irradiated in a quartz vial 1331000100010 in the Savannah River Plant high flux reactor for 36 h.1331000100011 After the 254Fm had grown into equilibrium with its 1331000100012 39.3-h 254mEs parent, fermium was separated from 1331000100013 einsteinium by cation-exchange elution development 1331000100014 chromatography with ammonium alpha hydroxyisobutyrate. 1331000100015 The fermium fraction was collected on a platinum plate,1331000100016 dried, and flamed. An aluminum-catcher-foil technique 1331000100017 was used to collect the fission fragments from the 1331000100018 3.24-h 254Fm source. Two catcher foils were exposed, 1331000100019 the first for direct gamma-ray analysis and the second 1331000100020 for radiochemical analysis. 1331000100021 METHOD (GSPEC) 1331000100022 (CHSEP) For 140Ba and 127Sb yield determinations 1331000100023 DETECTOR (GELI) 1331000100024 (SCIN) A stilbene counter to determine 140Ba and 1331000100025 a low-background scintillation counter to 1331000100026 determine 127Sb 1331000100027 HISTORY (19890713C) VM 1331000100028 (20201108A) OG. Converted to lower case and 4-digit 1331000100029 year. #doi, #NSR , SAMPLE and Sub005 added. STATUS, 1331000100030 METHOD, DETECTOR updated. 1331000100031 ENDBIB 29 0 1331000100032 NOCOMMON 0 0 1331000100033 ENDSUBENT 32 0 1331000199999 SUBENT 13310002 20210107 14751331000200001 BIB 6 22 1331000200002 REACTION (100-FM-254(0,F)ELEM/MASS,CUM,FY) Normalized yields 1331000200003 ANALYSIS The relative numbers of atoms were converted to 1331000200004 absolute yields by requiring the sum of all yields to 1331000200005 be 200%. 1331000200006 DECAY-DATA ((1.)36-KR-88,2.8HR,DG,196.1,0.35) 1331000200007 ((2.)41-NB-95-G,35.D,DG,765.8,0.99) 1331000200008 ((3.)43-TC-99-M,6.HR,DG,140.3,0.90) 1331000200009 ((4.)44-RU-103,39.6D,DG,497.1,0.90) 1331000200010 ((5.)44-RU-105,4.44HR,DG,724.2,0.48) 1331000200011 ((6.)44-RU-106,367.D,DG,621.8,0.098) 1331000200012 ((8.)53-I-131,8.05D,DG,364.5,0.82) 1331000200013 ((9.)53-I-133-G,21.HR,DG,529.9,0.90) 1331000200014 ((10.)58-CE-141,33.D,DG,145.4,0.48) 1331000200015 ((11.)58-CE-143,33.HR,DG,293.2,0.46) 1331000200016 ((12.)58-CE-144,284.D,DG,133.5,0.11) 1331000200017 ((13.)60-ND-147,11.1D,DG,91.0,0.28) 1331000200018 ((14.)60-ND-149,1.8HR,DG,211.3,0.27) 1331000200019 ERR-ANALYS (DATA-ERR) Data uncertainty given includes gammay-ray 1331000200020 abundance, efficiency, and counting uncertainties. 1331000200021 STATUS (TABLE) Tab.IV (p.1491) in Phys.Rev.C,8,1488,1973 1331000200022 HISTORY (19900326A) BIB correction 1331000200023 (20210107U) OG. STATUS, ANALISYS added. 1331000200024 ENDBIB 22 0 1331000200025 NOCOMMON 0 0 1331000200026 DATA 6 14 1331000200027 ELEMENT MASS ISOMER DATA DATA-ERR DECAY-FLAG 1331000200028 NO-DIM NO-DIM NO-DIM PC/FIS PC/FIS NO-DIM 1331000200029 36. 88. 0.08 .08 1. 1331000200030 41. 95. .52 .02 2. 1331000200031 43. 99. 1. 1.54 .11 3. 1331000200032 44. 103. 3.21 .22 4. 1331000200033 44. 105. 4.91 .53 5. 1331000200034 44. 106. 4.68 .56 6. 1331000200035 51. 127. 0.27 .06 1331000200036 53. 131. 2.33 .17 8. 1331000200037 53. 133. 4.74 .32 9. 1331000200038 58. 141. 4.87 .38 10. 1331000200039 58. 143. 4.60 .46 11. 1331000200040 58. 144. 4.28 .60 12. 1331000200041 60. 147. 3.56 .35 13. 1331000200042 60. 149. 2.98 .43 14. 1331000200043 ENDDATA 16 0 1331000200044 ENDSUBENT 43 0 1331000299999 SUBENT 13310003 20210107 14751331000300001 BIB 7 19 1331000300002 REACTION (100-FM-254(0,F)ELEM/MASS,CUM,FY) Normalized yields 1331000300003 ANALYSIS The relative numbers of atoms were converted to 1331000300004 absolute yields by requiring the sum of all yields to 1331000300005 be 200%. 1331000300006 DECAY-DATA ((1.)41-NB-97-G,72.MIN,DG,743.4,0.94,DG,658.1,0.99) 1331000300007 ((2.)47-AG-112,3.2HR,DG,617.4,0.41) 1331000300008 ((3.)52-TE-132,78.HR,DG,228.2,0.88) 1331000300009 ((4.)54-XE-135-G,9.2HR,DG,1260.5,0.35) 1331000300010 ((5.)56-BA-139,82.9MIN,DG,165.8,0.22) 1331000300011 ((6.)57-LA-140,40.2HR,DG,487.1,0.465) 1331000300012 ((7.)57-LA-142,92.4MIN,DG,641.2,0.48) 1331000300013 CORRECTION Corrected for independent yield. 1331000300014 ERR-ANALYS (DATA-ERR) Data uncertainty given includes gammay-ray 1331000300015 abundance, efficiency, and counting uncertainties, 1331000300016 excuding uncertainty for 127Sb, which was estimated on 1331000300017 basis of radiochemical analisys of 127Sb. 1331000300018 STATUS (TABLE) Tab.III (p.1491) in Phys.Rev.C,8,1488,1973 1331000300019 HISTORY (20210107A) OG. STATUS, ANALISYS added. ERR-ANALYS 1331000300020 updated. 1331000300021 ENDBIB 19 0 1331000300022 NOCOMMON 0 0 1331000300023 DATA 5 7 1331000300024 ELEMENT MASS DATA DATA-ERR DECAY-FLAG 1331000300025 NO-DIM NO-DIM PC/FIS PC/FIS NO-DIM 1331000300026 41. 97. 1.19 .06 1. 1331000300027 47. 112. 6.42 .36 2. 1331000300028 52. 132. 2.93 .32 3. 1331000300029 54. 135. 4.30 .26 4. 1331000300030 56. 139. 5.13 .49 5. 1331000300031 57. 140. 5.0 .42 6. 1331000300032 57. 142. 5.14 .44 7. 1331000300033 ENDDATA 9 0 1331000300034 ENDSUBENT 33 0 1331000399999 SUBENT 13310004 20210107 14751331000400001 BIB 5 9 1331000400002 REACTION ((100-FM-254(0,F)ELEM/MASS,IND,FY)/ 1331000400003 (100-FM-254(0,F)ELEM/MASS,CUM,FY)) 1331000400004 DECAY-DATA ((1.)53-I-132-G,2.3HR,DG,228.2,0.88) 1331000400005 ((3.)54-XE-135-G,9.2HR,DG,1260.5,0.35) 1331000400006 ((4.)57-LA-140,40.2HR,DG,487.1,0.465) 1331000400007 ERR-ANALYS (DATA-ERR) Data uncertainty given includes gammay-ray 1331000400008 abundance, efficiency, and counting uncertainties. 1331000400009 STATUS (TABLE) Tab.II (p.1490) in Phys.Rev.C,8,1488,1973 1331000400010 HISTORY (20201108U) OG. STATUS added. 1331000400011 ENDBIB 9 0 1331000400012 NOCOMMON 0 0 1331000400013 DATA 6 4 1331000400014 ELEMENT MASS DATA +DATA-ERR -DATA-ERR DECAY-FLAG 1331000400015 NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM 1331000400016 53. 132. .20 0.02 0.02 1. 1331000400017 53. 134. .58 0.03 0.04 1331000400018 54. 135. .28 0.01 0.01 3. 1331000400019 57. 140. .023 0.009 0.009 4. 1331000400020 ENDDATA 6 0 1331000400021 ENDSUBENT 20 0 1331000499999 SUBENT 13310005 20210107 14751331000500001 BIB 4 5 1331000500002 REACTION (100-FM-254(0,F)ELEM/MASS,CUM,FY,,FRC) 1331000500003 ERR-ANALYS (DATA-ERR) No information on sources of uncertainties 1331000500004 STATUS (TABLE) Text on p.1491 in Phys.Rev.C,8,1488,1973 1331000500005 (DEP,13310004) 1331000500006 HISTORY (20210107C) OG. 1331000500007 ENDBIB 5 0 1331000500008 NOCOMMON 0 0 1331000500009 DATA 4 4 1331000500010 ELEMENT MASS DATA DATA-ERR 1331000500011 NO-DIM NO-DIM NO-DIM NO-DIM 1331000500012 52. 132. 0.80 0.02 1331000500013 52. 134. 0.40 0.04 1331000500014 53. 135. 0.71 0.01 1331000500015 56. 140. 0.977 0.009 1331000500016 ENDDATA 6 0 1331000500017 ENDSUBENT 16 0 1331000599999 ENDENTRY 5 0 1331099999999