ENTRY 14546 20191209 14571454600000001 SUBENT 14546001 20191209 14571454600100001 BIB 10 48 1454600100002 TITLE Bimodal fission in binary and ternary spontaneous 1454600100003 fission of 252Cf 1454600100004 AUTHOR (D.Fong,J.H.Hamilton,A.V.Ramayya,J.K.Hwang,C.Goodin, 1454600100005 K.Li, J.Kormicki,J.O.Rasmussen,Y.X.Luo,S.C.Wu,I.Y.Lee, 1454600100006 A.V.Daniel, G.M.Ter-Akopian,G.S.Popeko,A.S.Fomichev, 1454600100007 A.M.Rodin, Yu.Ts.Oganessian,M.Jandel,J.Kliman,L.Krupa, 1454600100008 J.D.Cole, M.A.Stoyer,R.Donangelo,W.C.Ma) 1454600100009 INSTITUTE (1USAVBT,1USABRK,4ZZZDUB,3SLKSLO,1USAINL,1USALRL, 1454600100010 3BZLRIO,1USAMSS) 1454600100011 REFERENCE (J,PR/C,74,017309,2006) 1454600100012 #doi:10.1103/PhysRevC.74.017309 1454600100013 #NSR: 2006GO20 1454600100014 (J,PAN,69,1161,2006) 1454600100015 #doi:10.1134/S1063778806070118 1454600100016 #NSR: 2006FO10 1454600100017 (J,NP/A,787,231,2007) 1454600100018 #doi:10.1016/j.nuclphysa.2006.12.037 1454600100019 #NSR: 2007GO21 1454600100020 Ba-Mo and Ba-alpha-Zr fission neutron yields 1454600100021 FACILITY Gammasphere detector array located at Lawrence 1454600100022 Berkeley National Laboratory 1454600100023 SAMPLE A 35 mu-Ci 252Cf source was deposited as a 5-mm spot on1454600100024 a 1.8-mu-m Ti foil covered on both sides by gold foils.1454600100025 These foils were of thickness 3.7 mu-m on the front and1454600100026 4.6 mu-m on the back. 1454600100027 METHOD (COINC,GSPEC) Triple gamma coincidence and LCP-gamma- 1454600100028 gamma coincidence techniques. 1454600100029 The binary data were taken in November 2000. A 62 1454600100030 mu-Ci source was placed between two iron foils to 1454600100031 stop fission fragments. This arrangement was then put 1454600100032 in a 7.62-cm polyethylene ball and placed in 1454600100033 Gammasphere. The ternary data were taken in December 1454600100034 2001. 1454600100035 DETECTOR (GE-IN) 72 Compton-suppressed Ge detectors. 1454600100036 Gammasphere calibrated with 133Ba, 137Cs, 152Eu, 56Co, 1454600100037 and 57Co sources. 1454600100038 (TELES,SI,SI) Eight deltaE-E detectors were placed 1454600100039 around the source to detect light-charged particles. 1454600100040 Four were placed at azimuthal angles of 45, 135, 225, 1454600100041 and 135 degrees with a polar angle of 30 degrees, 1454600100042 while the other four were placed at the same 1454600100043 azimuthal angles with a polar angle of 150 degrees. 1454600100044 The delta-E detectors had an area of 10 x 10 mm with 1454600100045 a thickness of 10 mu-m, while the E detectors had an 1454600100046 area of 20 x 20 mm with a thickness of 400 mu-m. 1454600100047 CORRECTION Data corrected for detector efficiency and internal 1454600100048 conversion coefficients. 1454600100049 HISTORY (20190820C) OG. 1454600100050 ENDBIB 48 0 1454600100051 NOCOMMON 0 0 1454600100052 ENDSUBENT 51 0 1454600199999 SUBENT 14546002 20190820 14571454600200001 BIB 3 5 1454600200002 REACTION (98-CF-252(0,F)ELEM/MASS,IND/CRN,FY,,REL) Relative 1454600200003 yield matrix for the Ba-Mo charge split. 1454600200004 ERR-ANALYS (DATA-ERR) No information on source of uncertainties 1454600200005 STATUS (TABLE) Data from Tab.I of Phys.Rev.C74,017309,2006. 1454600200006 Preliminary data in Phys.of Atom.Nucl.69,1161,2006. 1454600200007 ENDBIB 5 0 1454600200008 COMMON 2 3 1454600200009 ELEM1 ELEM2 1454600200010 NO-DIM NO-DIM 1454600200011 42. 56. 1454600200012 ENDCOMMON 3 0 1454600200013 DATA 4 62 1454600200014 MASS1 MASS2 DATA DATA-ERR 1454600200015 NO-DIM NO-DIM ARB-UNITS ARB-UNITS 1454600200016 102. 142. 0.007 0.003 1454600200017 102. 143. 4. 1. 1454600200018 102. 144. 10.0 0.3 1454600200019 102. 145. 21. 1. 1454600200020 102. 146. 16.7 0.7 1454600200021 102. 147. 4.3 0.2 1454600200022 102. 148. 2.1 0.2 1454600200023 103. 140. 0.4 0.1 1454600200024 103. 141. 1.2 0.9 1454600200025 103. 142. 6. 1. 1454600200026 103. 143. 18.6 0.8 1454600200027 103. 144. 51. 1. 1454600200028 103. 145. 53. 2. 1454600200029 103. 146. 30.6 0.6 1454600200030 103. 147. 14.5 0.4 1454600200031 103. 148. 1.8 0.2 1454600200032 104. 139. 0.41 0.08 1454600200033 104. 140. 0.19 0.12 1454600200034 104. 141. 1.8 0.8 1454600200035 104. 142. 27.0 0.7 1454600200036 104. 143. 59.4 0.9 1454600200037 104. 144. 102. 4. 1454600200038 104. 145. 79. 2. 1454600200039 104. 146. 39. 3. 1454600200040 104. 147. 4.1 0.4 1454600200041 104. 148. 0.5 0.2 1454600200042 105. 138. 0.43 0.25 1454600200043 105. 139. 0.36 0.12 1454600200044 105. 140. 2.9 0.9 1454600200045 105. 141. 13.0 0.7 1454600200046 105. 142. 45.9 0.9 1454600200047 105. 143. 93. 3. 1454600200048 105. 144. 99. 2. 1454600200049 105. 145. 46. 2. 1454600200050 105. 146. 11.0 0.2 1454600200051 105. 147. 2.1 0.2 1454600200052 106. 138. 0.35 0.11 1454600200053 106. 139. 2.3 0.2 1454600200054 106. 140. 11.8 0.6 1454600200055 106. 141. 37. 1. 1454600200056 106. 142. 92. 2. 1454600200057 106. 143. 111. 2. 1454600200058 106. 144. 71.7 0.2 1454600200059 106. 145. 21.9 0.9 1454600200060 106. 146. 4.5 0.2 1454600200061 107. 139. 2.7 0.6 1454600200062 107. 140. 11. 1. 1454600200063 107. 141. 26. 3. 1454600200064 107. 142. 41. 2. 1454600200065 107. 143. 32. 3. 1454600200066 107. 144. 10. 1. 1454600200067 108. 138. 0.78 0.36 1454600200068 108. 139. 4.8 0.8 1454600200069 108. 140. 22. 5. 1454600200070 108. 141. 39. 3. 1454600200071 108. 142. 51. 33. 1454600200072 108. 143. 59. 9. 1454600200073 109. 139. 2.5 0.1 1454600200074 109. 140. 2.5 0.2 1454600200075 109. 141. 3.2 0.3 1454600200076 109. 142. 5.5 0.2 1454600200077 109. 143. 2.8 0.8 1454600200078 ENDDATA 64 0 1454600200079 ENDSUBENT 78 0 1454600299999 SUBENT 14546003 20190820 14571454600300001 BIB 3 5 1454600300002 REACTION (98-CF-252(0,F)ELEM/MASS,IND/TER/CRN,FY,,REL) Relative 1454600300003 yield matrix for the Ba-alpha-Zr split. 1454600300004 ERR-ANALYS (DATA-ERR) No information on source of uncertainties 1454600300005 STATUS (TABLE) Data from Tab.II of Phys.Rev.C74,017309,2006. 1454600300006 Preliminary data in Phys.of Atom.Nucl.69,1161,2006. 1454600300007 ENDBIB 5 0 1454600300008 COMMON 4 3 1454600300009 ELEM1 ELEM2 ELEM3 MASS3 1454600300010 NO-DIM NO-DIM NO-DIM NO-DIM 1454600300011 40. 56. 2. 4. 1454600300012 ENDCOMMON 3 0 1454600300013 DATA 4 35 1454600300014 MASS1 MASS2 DATA DATA-ERR 1454600300015 NO-DIM NO-DIM ARB-UNITS ARB-UNITS 1454600300016 98. 142. 3. 1. 1454600300017 98. 143. 2.4 1.0 1454600300018 98. 144. 2.4 0.7 1454600300019 98. 145. 1.3 0.8 1454600300020 98. 146. 4.2 0.8 1454600300021 98. 147. 3.2 1.5 1454600300022 99. 142. 5. 2. 1454600300023 99. 143. 5.2 2.6 1454600300024 99. 144. 3. 1. 1454600300025 99. 145. 7. 3. 1454600300026 99. 147. 12. 3.5 1454600300027 100. 140. 2.2 0.7 1454600300028 100. 142. 1.9 0.5 1454600300029 100. 143. 3. 1. 1454600300030 100. 144. 13.6 0.8 1454600300031 100. 145. 2. 1. 1454600300032 100. 146. 4.4 0.7 1454600300033 100. 147. 3.9 1.3 1454600300034 101. 142. 5. 2. 1454600300035 101. 143. 7.5 3.2 1454600300036 101. 144. 4.1 1.4 1454600300037 101. 145. 11.5 3.3 1454600300038 101. 146. 4. 1. 1454600300039 102. 140. 2. 1. 1454600300040 102. 141. 7. 1. 1454600300041 102. 142. 7.2 0.8 1454600300042 102. 143. 7.2 1.4 1454600300043 102. 144. 10.7 0.7 1454600300044 102. 145. 5. 1. 1454600300045 103. 141. 4. 2. 1454600300046 103. 142. 2.5 0.9 1454600300047 103. 145. 6. 1.7 1454600300048 104. 140. 4. 1. 1454600300049 104. 141. 3. 1. 1454600300050 104. 142. 2.0 0.6 1454600300051 ENDDATA 37 0 1454600300052 ENDSUBENT 51 0 1454600399999 SUBENT 14546004 20190822 14571454600400001 BIB 6 10 1454600400002 REACTION (98-CF-252(0,F)ELEM/MASS,IND/CRN,FY) 1454600400003 ANALYSIS Only the strongest transitions to ground states 1454600400004 were measured. The yields for other transitions 1454600400005 to ground states were calculated using known values 1454600400006 of relative intensities. 1454600400007 MONITOR The total yield for each Xe gate nucleus was normalized1454600400008 to total yield in binary fission using tables of Wahl. 1454600400009 MONIT-REF (,A.C.Wahl,J,AND,39,1,1988) 1454600400010 ERR-ANALYS (DATA-ERR) No information on source of uncertainties 1454600400011 STATUS (TABLE) Data from Tab.1 in the 2-nd reference 1454600400012 ENDBIB 10 0 1454600400013 COMMON 2 3 1454600400014 ELEM1 ELEM2 1454600400015 NO-DIM NO-DIM 1454600400016 44. 54. 1454600400017 ENDCOMMON 3 0 1454600400018 DATA 4 39 1454600400019 MASS1 MASS2 DATA DATA-ERR 1454600400020 NO-DIM NO-DIM PC/FIS PC/FIS 1454600400021 106. 138. 0.009 0.003 1454600400022 106. 139. 0.019 0.007 1454600400023 106. 140. 0.091 0.005 1454600400024 106. 141. 0.066 0.003 1454600400025 106. 142. 0.060 0.002 1454600400026 107. 138. 0.036 0.007 1454600400027 107. 139. 0.15 0.03 1454600400028 107. 140. 0.39 0.01 1454600400029 107. 141. 0.32 0.01 1454600400030 107. 142. 0.150 0.003 1454600400031 108. 136. 0.007 0.004 1454600400032 108. 138. 0.22 0.10 1454600400033 108. 138. 0.73 0.11 1454600400034 108. 138. 0.94 0.09 1454600400035 108. 138. 0.32 0.02 1454600400036 108. 138. 0.120 0.004 1454600400037 109. 136. 0.156 0.007 1454600400038 109. 137. 0.47 0.02 1454600400039 109. 138. 0.50 0.02 1454600400040 109. 139. 0.86 0.03 1454600400041 109. 140. 0.68 0.02 1454600400042 109. 141. 0.147 0.007 1454600400043 109. 142. 0.024 0.001 1454600400044 110. 136. 0.18 0.01 1454600400045 110. 137. 0.88 0.02 1454600400046 110. 138. 1.08 0.05 1454600400047 110. 139. 1.47 0.06 1454600400048 110. 140. 0.55 0.12 1454600400049 110. 141. 0.12 0.03 1454600400050 111. 136. 0.171 0.006 1454600400051 111. 137. 0.57 0.01 1454600400052 111. 138. 0.438 0.005 1454600400053 111. 139. 0.299 0.007 1454600400054 111. 140. 0.058 0.002 1454600400055 111. 141. 0.075 0.003 1454600400056 112. 136. 0.216 0.009 1454600400057 112. 137. 0.51 0.01 1454600400058 112. 138. 0.229 0.006 1454600400059 112. 139. 0.082 0.005 1454600400060 ENDDATA 41 0 1454600400061 ENDSUBENT 60 0 1454600499999 SUBENT 14546005 20190822 14571454600500001 BIB 5 11 1454600500002 REACTION (98-CF-252(0,F)ELEM/MASS,IND/TER/CRN,FY) 1454600500003 ANALYSIS Single gates were set on the strongest transitions in 1454600500004 132-136Te nuclei, and the intensities of the 1454600500005 strongest transition in 106-112Ru nuclei were 1454600500006 measured. Since there is no absolute yield known for 1454600500007 ternary fission, the total yield for each nucleus was 1454600500008 normalized to the binary yields. 1454600500009 ADD-RES Te-alpha-Ru ternary fission neutron yields (Fig.3 in 1454600500010 the 2-nd ref.) 1454600500011 ERR-ANALYS (DATA-ERR) No information on source of uncertainties 1454600500012 STATUS (TABLE) Data from Tab.3 in the 2-nd reference 1454600500013 ENDBIB 11 0 1454600500014 COMMON 4 3 1454600500015 ELEM1 ELEM2 ELEM3 MASS3 1454600500016 NO-DIM NO-DIM NO-DIM NO-DIM 1454600500017 44. 52. 2. 4. 1454600500018 ENDCOMMON 3 0 1454600500019 DATA 4 28 1454600500020 MASS1 MASS2 DATA DATA-ERR 1454600500021 NO-DIM NO-DIM PC/FIS PC/FIS 1454600500022 106. 133. 0.29 0.09 1454600500023 106. 136. 0.04 0.03 1454600500024 107. 133. 0.40 0.20 1454600500025 107. 134. 0.37 0.09 1454600500026 107. 135. 0.07 0.02 1454600500027 107. 136. 11. 7. 1454600500028 108. 132. 0.05 0.02 1454600500029 108. 134. 0.11 0.06 1454600500030 108. 135. 0.54 0.27 1454600500031 108. 136. 0.12 0.06 1454600500032 109. 132. 0.11 0.05 1454600500033 109. 133. 0.69 0.03 1454600500034 109. 134. 0.10 0.02 1454600500035 109. 136. 0.11 0.05 1454600500036 110. 132. 0.26 0.09 1454600500037 110. 133. 0.13 0.07 1454600500038 110. 134. 0.70 0.20 1454600500039 110. 135. 0.49 0.23 1454600500040 110. 136. 0.21 0.11 1454600500041 111. 132. 0.22 0.06 1454600500042 111. 133. 0.07 0.02 1454600500043 111. 134. 0.30 0.04 1454600500044 111. 135. 0.17 0.14 1454600500045 111. 136. 0.07 0.04 1454600500046 112. 132. 0.09 0.04 1454600500047 112. 133. 0.24 0.10 1454600500048 112. 134. 0.40 0.13 1454600500049 112. 135. 0.36 0.16 1454600500050 ENDDATA 30 0 1454600500051 ENDSUBENT 50 0 1454600599999 SUBENT 14546006 20190822 14571454600600001 BIB 5 7 1454600600002 REACTION (98-CF-252(0,F)ELEM/MASS,IND/TER/CRN,FY,,REL) 1454600600003 ANALYSIS The gate nuclei were 136-142Xe, and relative yields 1454600600004 of 102-109Mo nuclei were measured. 1454600600005 ADD-RES Xe-alpha-Mo ternary fission neutron yields (Fig.4 in 1454600600006 the 2-nd ref.) 1454600600007 ERR-ANALYS (DATA-ERR) No information on source of uncertainties 1454600600008 STATUS (TABLE) Data from Tab.4 in the 2-nd reference 1454600600009 ENDBIB 7 0 1454600600010 COMMON 4 3 1454600600011 ELEM1 ELEM2 ELEM3 MASS3 1454600600012 NO-DIM NO-DIM NO-DIM NO-DIM 1454600600013 42. 54. 2. 4. 1454600600014 ENDCOMMON 3 0 1454600600015 DATA 4 45 1454600600016 MASS1 MASS2 DATA DATA-ERR 1454600600017 NO-DIM NO-DIM ARB-UNITS ARB-UNITS 1454600600018 102. 136. 0.02 0.02 1454600600019 102. 137. 0.01 0.01 1454600600020 102. 138. 0.006 0.003 1454600600021 102. 139. 0.005 0.004 1454600600022 102. 140. 0.01 0.01 1454600600023 102. 141. 0.003 0.002 1454600600024 102. 142. 0.008 0.002 1454600600025 103. 136. 0.007 0.007 1454600600026 103. 137. 0.02 0.01 1454600600027 103. 139. 0.03 0.02 1454600600028 103. 140. 0.04 0.03 1454600600029 103. 141. 0.02 0.02 1454600600030 103. 142. 0.009 0.003 1454600600031 104. 136. 0.07 0.08 1454600600032 104. 137. 0.08 0.04 1454600600033 104. 138. 0.25 0.02 1454600600034 104. 139. 0.29 0.03 1454600600035 104. 140. 0.35 0.04 1454600600036 104. 141. 0.11 0.01 1454600600037 104. 142. 0.13 0.01 1454600600038 105. 136. 0.001 0.0 1454600600039 105. 137. 0.01 0.01 1454600600040 105. 138. 0.09 0.01 1454600600041 105. 139. 0.22 0.04 1454600600042 105. 140. 0.20 0.04 1454600600043 105. 141. 0.25 0.05 1454600600044 105. 142. 0.035 0.002 1454600600045 106. 136. 0.10 0.04 1454600600046 106. 137. 0.20 0.04 1454600600047 106. 138. 0.71 0.04 1454600600048 106. 139. 2.20 0.06 1454600600049 106. 140. 0.69 0.02 1454600600050 106. 141. 0.29 0.01 1454600600051 106. 142. 0.17 0.01 1454600600052 107. 136. 0.41 0.11 1454600600053 107. 137. 1.83 0.66 1454600600054 107. 138. 0.99 0.14 1454600600055 107. 139. 0.75 0.14 1454600600056 107. 140. 1.42 0.27 1454600600057 107. 141. 0.38 0.07 1454600600058 108. 136. 0.09 0.02 1454600600059 108. 137. 0.30 0.04 1454600600060 108. 138. 0.46 0.05 1454600600061 108. 139. 0.11 0.02 1454600600062 109. 136. 0.03 0.02 1454600600063 ENDDATA 47 0 1454600600064 ENDSUBENT 63 0 1454600699999 ENDENTRY 6 0 1454699999999