ENTRY 30510 20090312 31373051000000001 SUBENT 30510001 20090312 31373051000100001 BIB 13 44 3051000100002 TITLE Angular distributions in neutron induced fission of 3051000100003 Th-232,natural uranium, Np-237 and Pu-239. 3051000100004 AUTHOR (S.Juhasz,M.Varnagy) 3051000100005 INSTITUTE (3HUNKOS) 3051000100006 REFERENCE (S,ZFK-376,135,197812) 3051000100007 INC-SOURCE (CF252). 700 Micrograms 3051000100008 SAMPLE The natural uranium oxide (U3-O8) and natural thorium 3051000100009 oxide (Th-O2) samples of 10mm diameter and 1mg/cm2 3051000100010 thickness were prepared by sedimentation on an alum. 3051000100011 backing plate (0.3mm),and were covered by a VYNS-foil 3051000100012 of 0.01 mg/cm2. 3051000100013 The Np- and Pu- acetate samples of 1.5 mg/cm2 were 3051000100014 by a polyester foil of 10 micro-m thickness on a 3051000100015 plexiglass ring holder. 3051000100016 DETECTOR (TRD). Poly carbonate (Makrofol-E), for Th and Pu also 3051000100017 Makrofol-kg. 3051000100018 PART-DET (FF) 3051000100019 METHOD The Makrofol-E detectors had an angle of 30deg to the 3051000100020 direction of the incoming fragments. The tracks were 3051000100021 counted by optical microscope (magn.=300). 3051000100022 The Makrofol-kg foils had an angle of 90deg to the 3051000100023 fragment direction. The tracks were counted by the 3051000100024 'jumping spark counting' method (ref.: Varnagy+, Nucl. 3051000100025 Instr. Meth. 141,489 (1977)). 3051000100026 ANALYSIS A function of the form: 3051000100027 W(theta) = a0 + a2*(cos(theta)**2) 3051000100028 - where 'theta' is the angle in the center-of-mass 3051000100029 system - was fitted to the experimental angular 3051000100030 distribution by the least squares method. 3051000100031 The integral of W(theta) over spherical angles from3051000100032 0 to 180deg was normalized to the total fission cross- 3051000100033 section (monitor) to obtain the absolute angular-diff- 3051000100034 erential cross-sections and cosine coefficients. 3051000100035 ERR-ANALYS (ERR-S) Quoted uncertainties = statistical errors. 3051000100036 STATUS (APRVD),S.Juhasz on 800504 and 861216. 3051000100037 Numerical values of angular-differential cross sections3051000100038 as in fig.2 of ZFK-376,135, were supplied by author. 3051000100039 Cosine coefficients are from ZFK-376,135 with 3051000100040 corrections by author. 3051000100041 HISTORY (19790919C) TL. 3051000100042 (19800505A) ML. Modifications, subentries 6 to 9 added.3051000100043 (19881014U)VOF- new author's approval added. 3051000100044 (20090312A) SD:Updated to new date formats,lower case, 3051000100045 made formal corrections. 3051000100046 ENDBIB 44 0 3051000100047 COMMON 1 3 3051000100048 EN-DUMMY 3051000100049 MEV 3051000100050 2.1 3051000100051 ENDCOMMON 3 0 3051000100052 ENDSUBENT 51 0 3051000199999 SUBENT 30510002 20090312 31373051000200001 BIB 4 6 3051000200002 REACTION (90-TH-232(N,F),,DA,FF,COS/FIS) 3051000200003 MONITOR (90-TH-232(N,F),,SIG,,FIS) 3051000200004 MONIT-REF (,J.R.DEEN+,R,ESL-11,1973) 3051000200005 Numbers refer to cosine-coeff. a0 and a2 of W(theta) 3051000200006 STATUS (DEP,30510006) As described under 'Analysis' above. 3051000200007 a0 as corrected by author 3051000200008 ENDBIB 6 0 3051000200009 COMMON 1 3 3051000200010 MONIT 3051000200011 MB 3051000200012 7.4600E+01 3051000200013 ENDCOMMON 3 0 3051000200014 DATA 3 2 3051000200015 NUMBER-CM DATA-CM ERR-S 3051000200016 NO-DIM MB/SR MB/SR 3051000200017 0.0000E+00 5.3900E+00 2.4000E-01 3051000200018 2.0000E+00 1.6500E+00 1.5000E-01 3051000200019 ENDDATA 4 0 3051000200020 ENDSUBENT 19 0 3051000299999 SUBENT 30510003 20090312 31373051000300001 BIB 4 5 3051000300002 REACTION (92-U-0(N,F),,DA,FF,COS/FIS) 3051000300003 MONITOR (92-U-0(N,F),,SIG,,FIS) 3051000300004 MONIT-REF (,D.M.GILLIAM+,C,75WASH,270,197503) 3051000300005 Numbers refer to cosine-coff. of W(theta) 3051000300006 STATUS (DEP,30510007) As described under 'Analysis' above 3051000300007 ENDBIB 5 0 3051000300008 COMMON 1 3 3051000300009 MONIT 3051000300010 MB 3051000300011 3.2000E+02 3051000300012 ENDCOMMON 3 0 3051000300013 DATA 3 2 3051000300014 NUMBER-CM DATA-CM ERR-S 3051000300015 NO-DIM MB/SR MB/SR 3051000300016 0.0000E+00 2.3340E+01 2.4000E-01 3051000300017 2.0000E+00 6.3700E+00 3.9000E-01 3051000300018 ENDDATA 4 0 3051000300019 ENDSUBENT 18 0 3051000399999 SUBENT 30510004 20090312 31373051000400001 BIB 4 5 3051000400002 REACTION (93-NP-237(N,F),,DA,FF,COS/FIS) 3051000400003 MONITOR (93-NP-237(N,F),,SIG,,FIS) 3051000400004 MONIT-REF (,D.M.GILLIAM+,C,75WASH,270,197503) 3051000400005 Numbers refer to cosine-coeff. of W(theta) 3051000400006 STATUS (DEP,30510008) As described under 'Analysis' above. 3051000400007 ENDBIB 5 0 3051000400008 COMMON 1 3 3051000400009 MONIT 3051000400010 MB 3051000400011 1.3320E+03 3051000400012 ENDCOMMON 3 0 3051000400013 DATA 3 2 3051000400014 NUMBER-CM DATA-CM ERR-S 3051000400015 NO-DIM MB/SR MB/SR 3051000400016 0.0000E+00 9.8640E+01 1.2900E+00 3051000400017 2.0000E+00 2.1940E+01 2.1000E+00 3051000400018 ENDDATA 4 0 3051000400019 ENDSUBENT 18 0 3051000499999 SUBENT 30510005 20090312 31373051000500001 BIB 4 5 3051000500002 REACTION (94-PU-239(N,F),,DA,FF,COS/FIS) 3051000500003 MONITOR (94-PU-239(N,F),,SIG,,FIS) 3051000500004 MONIT-REF (,D.M.GILLIAM+,C,75WASH,270,197503) 3051000500005 Numbers refer to cosine-coeff. a0 and a2 of W(theta) 3051000500006 STATUS (DEP,30510009) As described under 'Analysis' above. 3051000500007 ENDBIB 5 0 3051000500008 COMMON 1 3 3051000500009 MONIT 3051000500010 MB 3051000500011 1.8040E+03 3051000500012 ENDCOMMON 3 0 3051000500013 DATA 3 2 3051000500014 NUMBER-CM DATA-CM ERR-S 3051000500015 NO-DIM MB/SR MB/SR 3051000500016 0.0000E+00 1.3873E+02 1.8100E+00 3051000500017 2.0000E+00 1.4110E+01 3.0400E+00 3051000500018 ENDDATA 4 0 3051000500019 ENDSUBENT 18 0 3051000599999 SUBENT 30510006 20090312 31373051000600001 BIB 4 5 3051000600002 REACTION (90-TH-232(N,F),,DA,FF,FIS) 3051000600003 MONITOR (90-TH-232(N,F),,SIG,,FIS) See 'Analysis' above 3051000600004 MONIT-REF (,J.R.DEEN+,R,ESL-11,1973) 3051000600005 COMMENT 22801 events counted by microscope, 7089 events counted3051000600006 by jumping sparks method. 3051000600007 ENDBIB 5 0 3051000600008 COMMON 1 3 3051000600009 MONIT 3051000600010 MB 3051000600011 7.4600E+01 3051000600012 ENDCOMMON 3 0 3051000600013 DATA 3 22 3051000600014 ANG-CM DATA-CM ERR-S 3051000600015 ADEG MB/SR MB/SR 3051000600016 6.1000E-01 6.9400E+00 4.3000E-01 3051000600017 3.6900E+00 6.8400E+00 4.3000E-01 3051000600018 8.0000E+00 7.1900E+00 4.4000E-01 3051000600019 1.2320E+01 6.9700E+00 4.3000E-01 3051000600020 1.6710E+01 7.1100E+00 4.4000E-01 3051000600021 2.1040E+01 6.8900E+00 4.3000E-01 3051000600022 2.5420E+01 6.6600E+00 4.2000E-01 3051000600023 2.9810E+01 6.5100E+00 4.2000E-01 3051000600024 3.4300E+01 6.2300E+00 4.1000E-01 3051000600025 3.8640E+01 6.3600E+00 4.1000E-01 3051000600026 4.3040E+01 6.4600E+00 4.2000E-01 3051000600027 4.7440E+01 6.0300E+00 4.0000E-01 3051000600028 5.1850E+01 6.2700E+00 4.1000E-01 3051000600029 5.6280E+01 5.9600E+00 4.0000E-01 3051000600030 6.0580E+01 5.6600E+00 3.9000E-01 3051000600031 6.4800E+01 5.8000E+00 4.0000E-01 3051000600032 6.9040E+01 5.8800E+00 4.0000E-01 3051000600033 7.3300E+01 5.6000E+00 3.9000E-01 3051000600034 7.7870E+01 5.6900E+00 3.9000E-01 3051000600035 8.2010E+01 5.8000E+00 4.0000E-01 3051000600036 8.6360E+01 5.0700E+00 3.7000E-01 3051000600037 9.1230E+01 4.6900E+00 3.6000E-01 3051000600038 ENDDATA 24 0 3051000600039 ENDSUBENT 38 0 3051000699999 SUBENT 30510007 20090312 31373051000700001 BIB 4 4 3051000700002 REACTION (92-U-0(N,F),,DA,FF,FIS) 3051000700003 MONITOR (92-U-0(N,F),,SIG,,FIS) See 'Analysis' above 3051000700004 MONIT-REF (,D.M.GILLIAM+,C,75WASH,270,197503) 3051000700005 COMMENT 90235 events counted 3051000700006 ENDBIB 4 0 3051000700007 COMMON 1 3 3051000700008 MONIT 3051000700009 MB 3051000700010 3.2000E+02 3051000700011 ENDCOMMON 3 0 3051000700012 DATA 3 22 3051000700013 ANG-CM DATA-CM ERR-S 3051000700014 ADEG MB/SR MB/SR 3051000700015 3.4000E-01 2.9290E+01 9.2000E-01 3051000700016 3.9500E+00 2.9560E+01 9.3000E-01 3051000700017 8.3600E+00 2.9430E+01 9.2000E-01 3051000700018 1.2610E+01 3.0160E+01 9.4000E-01 3051000700019 1.7100E+01 2.8980E+01 9.2000E-01 3051000700020 2.1210E+01 2.9730E+01 9.3000E-01 3051000700021 2.5490E+01 2.9410E+01 9.2000E-01 3051000700022 2.9730E+01 2.8640E+01 9.1000E-01 3051000700023 3.4020E+01 2.7420E+01 8.9000E-01 3051000700024 3.8450E+01 2.6660E+01 8.9000E-01 3051000700025 4.2950E+01 2.6100E+01 8.7000E-01 3051000700026 4.7330E+01 2.4450E+01 8.4000E-01 3051000700027 5.1650E+01 2.6540E+01 8.8000E-01 3051000700028 5.5950E+01 2.4480E+01 8.4000E-01 3051000700029 6.0250E+01 2.4770E+01 8.5000E-01 3051000700030 6.4650E+01 2.4390E+01 8.4000E-01 3051000700031 6.9000E+01 2.4100E+01 8.4000E-01 3051000700032 7.3370E+01 2.4260E+01 8.4000E-01 3051000700033 7.7710E+01 2.3740E+01 8.3000E-01 3051000700034 8.2020E+01 2.3960E+01 8.3000E-01 3051000700035 8.6390E+01 2.3700E+01 8.3000E-01 3051000700036 9.1070E+01 2.3630E+01 8.3000E-01 3051000700037 ENDDATA 24 0 3051000700038 ENDSUBENT 37 0 3051000799999 SUBENT 30510008 20090312 31373051000800001 BIB 4 4 3051000800002 REACTION (93-NP-237(N,F),,DA,FF,FIS) 3051000800003 MONITOR (93-NP-237(N,F),,SIG,,FIS) See under 'Analysis' above 3051000800004 MONIT-REF (,D.M.GILLIAM+,C,75WASH,270,197503) 3051000800005 COMMENT 14208 events counted 3051000800006 ENDBIB 4 0 3051000800007 COMMON 1 3 3051000800008 MONIT 3051000800009 MB 3051000800010 1.3320E+03 3051000800011 ENDCOMMON 3 0 3051000800012 DATA 3 18 3051000800013 ANG-CM DATA-CM ERR-S 3051000800014 ADEG MB/SR MB/SR 3051000800015 2.5000E+00 1.1573E+02 4.0200E+00 3051000800016 7.5000E+00 1.1920E+02 4.0700E+00 3051000800017 1.2500E+01 1.1684E+02 4.0300E+00 3051000800018 1.7500E+01 1.2240E+02 4.1200E+00 3051000800019 2.2500E+01 1.1920E+02 4.0700E+00 3051000800020 2.7500E+01 1.1739E+02 4.0400E+00 3051000800021 3.2500E+01 1.1448E+02 3.9900E+00 3051000800022 3.7500E+01 1.1239E+02 3.9500E+00 3051000800023 4.2500E+01 1.1128E+02 3.9300E+00 3051000800024 4.7500E+01 1.0447E+02 3.8100E+00 3051000800025 5.2500E+01 1.1281E+02 3.9600E+00 3051000800026 5.7500E+01 1.0961E+02 3.9000E+00 3051000800027 6.2500E+01 1.0475E+02 3.8100E+00 3051000800028 6.7500E+01 9.8080E+01 3.6900E+00 3051000800029 7.2500E+01 1.0170E+02 3.7600E+00 3051000800030 7.7500E+01 9.7250E+01 3.6800E+00 3051000800031 8.2500E+01 9.5440E+01 3.6400E+00 3051000800032 8.7500E+01 1.0003E+02 3.7300E+00 3051000800033 ENDDATA 20 0 3051000800034 ENDSUBENT 33 0 3051000899999 SUBENT 30510009 20090312 31373051000900001 BIB 4 4 3051000900002 REACTION (94-PU-239(N,F),,DA,FF,FIS) 3051000900003 MONITOR (94-PU-239(N,F),,SIG,,FIS) 3051000900004 MONIT-REF (,D.M.GILLIAM+,C,75WASH,270,197503) 3051000900005 COMMENT 10644 events counted by jumping spark method. 3051000900006 ENDBIB 4 0 3051000900007 COMMON 1 3 3051000900008 MONIT 3051000900009 MB 3051000900010 1.8040E+03 3051000900011 ENDCOMMON 3 0 3051000900012 DATA 3 18 3051000900013 ANG-CM DATA-CM ERR-S 3051000900014 ADEG MB/SR MB/SR 3051000900015 2.5000E+00 1.5235E+02 6.2900E+00 3051000900016 7.5000E+00 1.4641E+02 6.1600E+00 3051000900017 1.2500E+01 1.5209E+02 6.2800E+00 3051000900018 1.7500E+01 1.5684E+02 6.3800E+00 3051000900019 2.2500E+01 1.4574E+02 6.1500E+00 3051000900020 2.7500E+01 1.4664E+02 6.1700E+00 3051000900021 3.2500E+01 1.5261E+02 6.2900E+00 3051000900022 3.7500E+01 1.5131E+02 6.2700E+00 3051000900023 4.2500E+01 1.5210E+02 6.2800E+00 3051000900024 4.7500E+01 1.4534E+02 6.1400E+00 3051000900025 5.2500E+01 1.4456E+02 6.1300E+00 3051000900026 5.7500E+01 1.3844E+02 5.9100E+00 3051000900027 6.2500E+01 1.4171E+02 6.0600E+00 3051000900028 6.7500E+01 1.4768E+02 6.1900E+00 3051000900029 7.2500E+01 1.4690E+02 6.1700E+00 3051000900030 7.7500E+01 1.3510E+02 5.9000E+00 3051000900031 8.2500E+01 1.4248E+02 6.0800E+00 3051000900032 8.7500E+01 1.3251E+02 5.8600E+00 3051000900033 ENDDATA 20 0 3051000900034 ENDSUBENT 33 0 3051000999999 ENDENTRY 9 0 3051099999999