ENTRY 21549 20220209 23092154900000001 SUBENT 21549001 20220209 23092154900100001 BIB 13 43 2154900100002 TITLE Rare gas isotopic distributions and their precursors 2154900100003 in thermal fission of Pu-239 and Pu-241, study of the 2154900100004 odd-even effect 2154900100005 AUTHOR (R.Brissot,J.Crancon,Ch.Ristori,J.P.Bocquet,A.Moussa) 2154900100006 REFERENCE (J,NP/A,282,109,1977) in French 2154900100007 (C,77TOKYO,,748,1977) part of data 2154900100008 (J,JPR/L,37,(10),241,1976) 2154900100009 (R,CEA-N-1979,1,1977) table. 2154900100010 (T,BRISSOT,1976) Thesis. 2154900100011 INSTITUTE (2FR GRE) 2154900100012 FACILITY (REAC,2FR GRE) Melusine reactor. 2154900100013 INC-SOURCE (THCOL) Thermal column, flux 3 10*8 n/cm*2/sec. 2154900100014 INC-SPECT Maxwellian thermal neutron spectrum. 2154900100015 SAMPLE About 14 mg of plutonium dioxide deposited on a nickel2154900100016 support, 20 ug/cm*2 thick. The plutonium layer was 2154900100017 covered by a layer of barium stearate, 1 mm thick 2154900100018 METHOD (ACTIV) Cummulative yields are determined from the 2154900100019 activity of rare gases with respect to a reference 2154900100020 isotope. 2154900100021 Seperated masses are implanted onto an aluminium 2154900100022 foil and transfered to a system of two thin plastic 2154900100023 scintillators for 4 pi beta counting. 2154900100024 Measurement of rare gas activity during irradiation 2154900100025 is proportional to the cummulative yield of the 2154900100026 precursor. 2154900100027 Measurment of the activity after the end of the 2154900100028 irradiation period is due only to decay of non-gaseous2154900100029 precursors implanted in the aluminium foil. 2154900100030 DETECTOR (MAGSP) Mass separator ARIEL. 2154900100031 (SCIN) Plastic scintillators, 1 mm thick, solid 2154900100032 angle near 4 pi. 2154900100033 ANALYSIS Independant yields are normalised via the 2154900100034 corresponding cummulative yields. As many of these are2154900100035 close to the mass chain yields, established data from 2154900100036 meek and rider, nedo-12154-1,1974, for chain yields 2154900100037 and fractional cummulative yields are used. 2154900100038 ERR-ANALYS (DATA-ERR) Quoted errors reflect simply the scatter of 2154900100039 several independent measurements. 2154900100040 HISTORY (19800530C) 2154900100041 (20030113A) date is corrected. 2154900100042 (20040413A) 'MXW' added in san 012, 013 2154900100043 (20220209A) SD:Updated to new date formats,lower case. 2154900100044 Corrections in all Subents. Ref. 77TOKYO,748 added. 2154900100045 ENDBIB 43 0 2154900100046 COMMON 1 3 2154900100047 EN-DUMMY 2154900100048 EV 2154900100049 2.53E-02 2154900100050 ENDCOMMON 3 0 2154900100051 ENDSUBENT 50 0 2154900199999 SUBENT 21549002 20220209 23092154900200001 BIB 5 6 2154900200002 REACTION (94-PU-239(N,F)ELEM/MASS,CUM,FY,,MXW) 2154900200003 MONITOR (94-PU-239(N,F)MASS,CHN,FY,,MXW) Chain yield and 2154900200004 associated fractional cummulative yields 2154900200005 MONIT-REF (,M.E.Meek+,R,NEDO-12154-1,1974) 2154900200006 STATUS (TABLE) Table 2 from Nucl.Phys.,A282(1977)109 2154900200007 HISTORY (20220209U) SD: STATUS updated. 2154900200008 ENDBIB 6 0 2154900200009 NOCOMMON 0 0 2154900200010 DATA 6 13 2154900200011 ELEMENT MASS MONIT MONIT-ERR DATA DATA-ERR 2154900200012 NO-DIM NO-DIM PC/FIS PC/FIS PC/FIS PC/FIS 2154900200013 36. 87. 0.967 0.05 0.99 0.042154900200014 36. 88. 1.37 0.05 1.25 0.062154900200015 36. 89. 1.69 0.05 1.50 0.052154900200016 36. 90. 2.11 0.05 1.31 0.042154900200017 36. 91. 0.711 0.022154900200018 36. 92. 0.305 0.0152154900200019 36. 93. 0.065 0.0052154900200020 54. 137. 6.66 0.2 6.15 0.32154900200021 54. 138. 5.73 0.3 5.42 0.352154900200022 54. 139. 5.74 0.3 3.07 0.152154900200023 54. 140. 5.6 0.3 1.56 0.062154900200024 54. 141. 0.488 0.032154900200025 54. 142. 0.138 0.0092154900200026 ENDDATA 15 0 2154900200027 ENDSUBENT 26 0 2154900299999 SUBENT 21549003 20220209 23092154900300001 BIB 5 6 2154900300002 REACTION (94-PU-239(N,F)ELEM/MASS,IND,FY,,MXW) 2154900300003 MONITOR (94-PU-239(N,F)MASS,CHN,FY,,MXW) Chain yields and 2154900300004 associated fractional cummulative yields 2154900300005 MONIT-REF (,M.E.Meek+,R,NEDO-12154-1,1974) 2154900300006 STATUS (TABLE) Table 2 from Nucl.Phys.,A282(1977)109 2154900300007 HISTORY (20220209U) SD: STATUS updated. 2154900300008 ENDBIB 6 0 2154900300009 NOCOMMON 0 0 2154900300010 DATA 6 13 2154900300011 ELEMENT MASS MONIT MONIT-ERR DATA DATA-ERR 2154900300012 NO-DIM NO-DIM PC/FIS PC/FIS PC/FIS PC/FIS 2154900300013 36. 87. 0.967 0.05 0.30 0.022154900300014 36. 88. 1.37 0.05 0.72 0.062154900300015 36. 89. 1.69 0.05 1.13 0.052154900300016 36. 90. 2.11 0.05 1.08 0.072154900300017 36. 91. 0.688 0.022154900300018 36. 92. 0.302 0.0152154900300019 36. 93. 0.065 0.0052154900300020 54. 137. 6.66 0.2 3.82 0.22154900300021 54. 138. 5.73 0.3 4.14 0.32154900300022 54. 139. 5.74 0.3 2.74 0.22154900300023 54. 140. 5.6 0.3 1.50 0.062154900300024 54. 141. 0.482 0.032154900300025 54. 142. 0.137 0.012154900300026 ENDDATA 15 0 2154900300027 ENDSUBENT 26 0 2154900399999 SUBENT 21549004 20220209 23092154900400001 BIB 5 6 2154900400002 REACTION (94-PU-241(N,F)ELEM/MASS,CUM,FY,,MXW) 2154900400003 MONITOR (94-PU-241(N,F)MASS,CHN,FY,,MXW) Chain yields and 2154900400004 associated fractional yields 2154900400005 MONIT-REF (,M.E.Meek+,R,NEDO-12154-1,1974) 2154900400006 STATUS (TABLE) Table 3 from Nucl.Phys.,A282(1977)109 2154900400007 HISTORY (20220209U) SD: STATUS updated. 2154900400008 ENDBIB 6 0 2154900400009 NOCOMMON 0 0 2154900400010 DATA 6 13 2154900400011 ELEMENT MASS MONIT MONIT-ERR DATA DATA-ERR 2154900400012 NO-DIM NO-DIM PC/FIS PC/FIS PC/FIS PC/FIS 2154900400013 36. 87. 0.746 0.04 0.714 0.042154900400014 36. 88. 0.96 0.06 1.00 0.082154900400015 36. 89. 1.18 0.12 1.11 0.062154900400016 36. 90. 1.19 0.062154900400017 36. 91. 0.93 0.042154900400018 36. 92. 0.575 0.062154900400019 36. 93. 0.194 0.0152154900400020 54. 137. 6.57 0.13 6.36 0.32154900400021 54. 138. 6.47 0.2 6.16 0.42154900400022 54. 139. 4.55 0.252154900400023 54. 140. 3.25 0.12154900400024 54. 141. 1.43 0.072154900400025 54. 142. 0.565 0.052154900400026 ENDDATA 15 0 2154900400027 ENDSUBENT 26 0 2154900499999 SUBENT 21549005 20220209 23092154900500001 BIB 5 6 2154900500002 REACTION (94-PU-241(N,F)ELEM/MASS,IND,FY,,MXW) 2154900500003 MONITOR (94-PU-241(N,F)MASS,CHN,FY,,MXW) Chain yields and 2154900500004 associated fractional yields 2154900500005 MONIT-REF (,M.E.Meek+,R,NEDO-12154-1,1974) 2154900500006 STATUS (TABLE) Table 3 from Nucl.Phys.,A282(1977)109 2154900500007 HISTORY (20220209U) SD: STATUS updated. 2154900500008 ENDBIB 6 0 2154900500009 NOCOMMON 0 0 2154900500010 DATA 6 13 2154900500011 ELEMENT MASS MONIT MONIT-ERR DATA DATA-ERR 2154900500012 NO-DIM NO-DIM PC/FIS PC/FIS PC/FIS PC/FIS 2154900500013 36. 87. 0.746 0.04 0.105 0.012154900500014 36. 88. 0.96 0.06 0.415 0.042154900500015 36. 89. 1.18 0.12 0.706 0.062154900500016 36. 90. 0.934 0.072154900500017 36. 91. 0.864 0.052154900500018 36. 92. 0.556 0.062154900500019 36. 93. 0.193 0.022154900500020 54. 137. 6.57 0.13 2.49 0.22154900500021 54. 138. 6.47 0.2 3.88 0.32154900500022 54. 139. 3.72 0.252154900500023 54. 140. 3.03 0.152154900500024 54. 141. 1.4 0.072154900500025 54. 142. 0.56 0.052154900500026 ENDDATA 15 0 2154900500027 ENDSUBENT 26 0 2154900599999 SUBENT 21549006 20220209 23092154900600001 BIB 4 5 2154900600002 REACTION (94-PU-239(N,F)ELEM/MASS,CUM,FY,,MXW) 2154900600003 COMMENT Measured by identifying the activity of non-gaseous 2154900600004 precursors to the rare gas yields. 2154900600005 STATUS (TABLE) Table 6 from Nucl.Phys.,A282(1977)109 2154900600006 HISTORY (20220209U) SD: STATUS updated. 2154900600007 ENDBIB 5 0 2154900600008 NOCOMMON 0 0 2154900600009 DATA 4 7 2154900600010 ELEMENT MASS DATA DATA-ERR 2154900600011 NO-DIM NO-DIM PC/FIS PC/FIS 2154900600012 35. 87. 0.695 0.04 2154900600013 35. 88. 0.53 0.03 2154900600014 35. 89. 0.37 0.02 2154900600015 35. 90. 0.23 0.05 2154900600016 53. 137. 2.33 0.1 2154900600017 53. 138. 1.27 0.13 2154900600018 53. 139. 0.33 0.1 2154900600019 ENDDATA 9 0 2154900600020 ENDSUBENT 19 0 2154900699999 SUBENT 21549007 20220209 23092154900700001 BIB 4 4 2154900700002 REACTION (94-PU-239(N,F)ELEM/MASS,IND,FY,,MXW) 2154900700003 COMMENT Derived from measurement of the cumulative yields 2154900700004 STATUS (TABLE) Table 6 from Nucl.Phys.,A282(1977)109 2154900700005 HISTORY (20220209U) SD: STATUS updated. 2154900700006 ENDBIB 4 0 2154900700007 NOCOMMON 0 0 2154900700008 DATA 4 7 2154900700009 ELEMENT MASS DATA DATA-ERR 2154900700010 NO-DIM NO-DIM PC/FIS PC/FIS 2154900700011 35. 87. 0.59 0.05 2154900700012 35. 88. 0.5 0.03 2154900700013 35. 89. 0.36 0.02 2154900700014 35. 90. 0.23 0.02 2154900700015 53. 137. 2.24 0.1 2154900700016 53. 138. 1.25 0.13 2154900700017 53. 139. 0.32 0.1 2154900700018 ENDDATA 9 0 2154900700019 ENDSUBENT 18 0 2154900799999 SUBENT 21549008 20220209 23092154900800001 BIB 4 5 2154900800002 REACTION (94-PU-241(N,F)ELEM/MASS,CUM,FY,,MXW) 2154900800003 COMMENT Measured as the activity of non-gaseous precursors 2154900800004 to the yields of rare gases. 2154900800005 STATUS (TABLE) Table 6 from Nucl.Phys.,A282(1977)109 2154900800006 HISTORY (20220209U) SD: STATUS updated. 2154900800007 ENDBIB 5 0 2154900800008 NOCOMMON 0 0 2154900800009 DATA 4 7 2154900800010 ELEMENT MASS DATA DATA-ERR 2154900800011 NO-DIM NO-DIM PC/FIS PC/FIS 2154900800012 35. 87. 0.61 0.04 2154900800013 35. 88. 0.59 0.06 2154900800014 35. 89. 0.41 0.05 2154900800015 35. 90. 0.25 0.04 2154900800016 53. 137. 3.87 0.2 2154900800017 53. 138. 2.28 0.15 2154900800018 53. 139. 0.83 0.1 2154900800019 ENDDATA 9 0 2154900800020 ENDSUBENT 19 0 2154900899999 SUBENT 21549009 20220209 23092154900900001 BIB 4 5 2154900900002 REACTION (94-PU-241(N,F)ELEM/MASS,IND,FY,,MXW) 2154900900003 COMMENT Derived from measured cumulative yields. 2154900900004 STATUS (TABLE) Table 6 from Nucl.Phys.,A282(1977)109 2154900900005 (DEP,21549008) 2154900900006 HISTORY (20220209U) SD: STATUS updated. 2154900900007 ENDBIB 5 0 2154900900008 NOCOMMON 0 0 2154900900009 DATA 4 7 2154900900010 ELEMENT MASS DATA DATA-ERR 2154900900011 NO-DIM NO-DIM PC/FIS PC/FIS 2154900900012 35. 87. 0.43 0.06 2154900900013 35. 88. 0.5 0.08 2154900900014 35. 89. 0.39 0.05 2154900900015 35. 90. 0.25 0.04 2154900900016 53. 137. 3.44 0.3 2154900900017 53. 138. 2.15 0.2 2154900900018 53. 139. 0.83 0.1 2154900900019 ENDDATA 9 0 2154900900020 ENDSUBENT 19 0 2154900999999 SUBENT 21549010 20220209 23092154901000001 BIB 4 6 2154901000002 REACTION (94-PU-239(N,F)ELEM,CHG,FY,,MXW) 2154901000003 COMMENT Values include an extrapolated portion on the 2154901000004 basis of measured cummulative and independant 2154901000005 yields. 2154901000006 STATUS (TABLE) Table 8 from Nucl.Phys.,A282(1977)109 2154901000007 HISTORY (20220209U) SD: STATUS updated. 2154901000008 ENDBIB 6 0 2154901000009 NOCOMMON 0 0 2154901000010 DATA 3 4 2154901000011 ELEMENT DATA DATA-ERR 2154901000012 NO-DIM PC/FIS PC/FIS 2154901000013 35. 2.36 0.4 2154901000014 36. 4.36 0.2 2154901000015 53. 16.1 1. 2154901000016 54. 16.56 0.6 2154901000017 ENDDATA 6 0 2154901000018 ENDSUBENT 17 0 2154901099999 SUBENT 21549011 20220209 23092154901100001 BIB 4 5 2154901100002 REACTION (94-PU-241(N,F)ELEM,CHG,FY,,MXW) 2154901100003 COMMENT Values include an extrapolated portion on the basis 2154901100004 of measured cumulative and independant yields. 2154901100005 STATUS (TABLE) Table 8 from Nucl.Phys.,A282(1977)109 2154901100006 HISTORY (20220209U) SD: STATUS updated. 2154901100007 ENDBIB 5 0 2154901100008 NOCOMMON 0 0 2154901100009 DATA 3 3 2154901100010 ELEMENT DATA DATA-ERR 2154901100011 NO-DIM PC/FIS PC/FIS 2154901100012 35. 2.1 0.3 2154901100013 36. 3.85 0.36 2154901100014 54. 16.73 1. 2154901100015 ENDDATA 5 0 2154901100016 ENDSUBENT 15 0 2154901199999 SUBENT 21549012 20220209 23092154901200001 BIB 3 3 2154901200002 REACTION (94-PU-239(N,F)MASS,,ZP,,MXW) 2154901200003 STATUS (TABLE) Table 5 from Nucl.Phys.,A282(1977)109 2154901200004 HISTORY (20220209U) SD: STATUS updated. 2154901200005 ENDBIB 3 0 2154901200006 NOCOMMON 0 0 2154901200007 DATA 3 8 2154901200008 MASS DATA DATA-ERR 2154901200009 NO-DIM NO-DIM NO-DIM 2154901200010 88. 35.64 0.06 2154901200011 89. 35.94 0.04 2154901200012 90. 36.28 0.05 2154901200013 91. 36.82 0.08 2154901200014 137. 53.72 0.03 2154901200015 138. 53.93 0.04 2154901200016 139. 54.45 0.05 2154901200017 140. 54.82 0.08 2154901200018 ENDDATA 10 0 2154901200019 ENDSUBENT 18 0 2154901299999 SUBENT 21549013 20220209 23092154901300001 BIB 3 3 2154901300002 REACTION (94-PU-241(N,F)MASS,,ZP,,MXW) 2154901300003 STATUS (TABLE) Table 5 from Nucl.Phys.,A282(1977)109 2154901300004 HISTORY (20220209U) SD: STATUS updated. 2154901300005 ENDBIB 3 0 2154901300006 NOCOMMON 0 0 2154901300007 DATA 3 10 2154901300008 MASS DATA DATA-ERR 2154901300009 NO-DIM NO-DIM NO-DIM 2154901300010 88. 35.36 0.08 2154901300011 89. 35.72 0.08 2154901300012 90. 36.08 0.05 2154901300013 91. 36.49 0.05 2154901300014 92. 36.87 0.08 2154901300015 137. 53.38 0.05 2154901300016 138. 53.72 0.06 2154901300017 139. 54.14 0.06 2154901300018 140. 54.43 0.05 2154901300019 141. 54.82 0.08 2154901300020 ENDDATA 12 0 2154901300021 ENDSUBENT 20 0 2154901399999 ENDENTRY 13 0 2154999999999