ENTRY 21805 20220210 23092180500000001 SUBENT 21805001 20220210 23092180500100001 BIB 15 39 2180500100002 TITLE Charge distribution in the reactor-neutron-induced 2180500100003 fission of Th-232 2180500100004 AUTHOR (H.N.Erten,A.Gruetter,E.Roessler,H.R.Von Gunten) 2180500100005 REFERENCE (J,PR/C,25,2519,1982) Main reference. 2180500100006 (P,INDC(SWT)-16,20,1982) part of data. 2180500100007 INSTITUTE (2SWTWUR) Eidgenoessisches Institut fuer Reaktor- 2180500100008 Forschung. 2180500100009 REL-REF (M,21712001,H.N.Erten+,J,NSE,79,(2),167,1981) 2180500100010 FACILITY (REAC,2SWTWUR) Swimming pool reactor SAPHIR. 2180500100011 INC-SOURCE (REAC) 2180500100012 INC-SPECT Fission neutron spectrum. 2180500100013 SAMPLE Th-232 100%, Th(NO3)4.x H2O. 2180500100014 METHOD (CHSEP) Radiochemical separation of the fission 2180500100015 products from Th-232(n,f). The irradiation time 2180500100016 varied between 1 hr and 10 hrs depending on the 2180500100017 half-life of the nuclide to be measured. Samples 2180500100018 were counted several times, and more than one 2180500100019 gamma-line used for yield determination. 2180500100020 (GSPEC) Gamma-ray spectroscopy 2180500100021 DETECTOR (GELI ) Ge(Li) detector. 45 cm3 and 54 cm3. 2180500100022 ANALYSIS (DECAY) 2180500100023 Gaussian peak fit and decay curve analysis. 2180500100024 ADD-RES By taking the chain yields of Erten (see REL-REF), 2180500100025 fractional yields were calculated, and the charge 2180500100026 distribution parameters in the reactor-neutron-induced2180500100027 fission of Th-232 determined width-parameter 0.52+-0.12180500100028 delta Z(P) 0.45+-0.02 2180500100029 ERR-ANALYS (DATA-ERR) Total error given, including the statistical2180500100030 error and systematic errors due to uncertainties in 2180500100031 the standard yield and detector efficiencies. 2180500100032 HISTORY (19820720C) BN. 2180500100033 (20161001A) SD:Updated to new date formats,lower case. 2180500100034 Ref. NSE,79,167 moved to REL-REF. BIB update. 2180500100035 ERR-T -> DATA-ERR. DECAY-data were added. Corrections 2180500100036 in data presentation according to the Tables. MONIT-REF2180500100037 corrected. MONIT, etc. added to Subents 002-004. 2180500100038 Subent 003 deleted (data are not from this article). 2180500100039 ERR-T -> DATA-ERR in Subents 002, 004. 2180500100040 (20220210U) SD: Ref. INDC(SWT)-16,20 added. 2180500100041 ENDBIB 39 0 2180500100042 COMMON 1 3 2180500100043 EN-DUMMY 2180500100044 MEV 2180500100045 1.5 2180500100046 ENDCOMMON 3 0 2180500100047 ENDSUBENT 46 0 2180500199999 SUBENT 21805002 20161001 22532180500200001 BIB 9 22 2180500200002 REACTION (90-TH-232(N,F)ELEM/MASS,IND,FY,,FIS) 2180500200003 DECAY-DATA (35-BR-82-G,35.3HR,DG,554.3,0.707,DG,619.1,0.430, 2180500200004 DG,776.5,0.834) 2180500200005 (37-RB-86-G,18.8D,DG,1076.6,0.0879) 2180500200006 (51-SB-128-G,9.1HR,DG,743.3,1.,DG,754.0,1.) 2180500200007 (55-CS-136,13.0D,DG,340.,0.468,DG,818.5,0.998, 2180500200008 DG,1048.1,0.798) 2180500200009 MONITOR (90-TH-232(N,F)42-MO-99,CUM,FY,,FIS) 2180500200010 MONIT-REF (21712002,H.N.Erten+,P,NEANDC(OR)-154,12,1980) 2180500200011 The cited Mo-99 yield is (2.98+-0.15)%. 2180500200012 DECAY-MON (42-MO-99,66.0HR,DG) 2180500200013 FLAG (1.) The total independent yield of Sb-128 is 2180500200014 (5.6+-1.4)E-3%. 2180500200015 (2.) The given yield represents un upper limit. 2180500200016 (3.) The large error in Br-82 is due to A 2180500200017 uncertain correction for the Br-81(n,gamma) reaction2180500200018 CORRECTION .For Sb-128-g the measured yield was corrected 2180500200019 for contributions due to precursors. The 2180500200020 contribution of independently formed Sb-128-m 2180500200021 to the correction was small. 2180500200022 STATUS (TABLE) Tbl. II from PR/C,25,2519,1982 2180500200023 HISTORY (20161001A) SD:Two values deleted-not from this article2180500200024 ENDBIB 22 0 2180500200025 COMMON 4 3 2180500200026 ELEM-NRM MASS-NRM MONIT MONIT-ERR 2180500200027 NO-DIM NO-DIM PC/FIS PC/FIS 2180500200028 42. 99. 2.98 0.15 2180500200029 ENDCOMMON 3 0 2180500200030 DATA 6 4 2180500200031 ELEMENT MASS ISOMER DATA DATA-ERR FLAG 2180500200032 NO-DIM NO-DIM NO-DIM PC/FIS PC/FIS NO-DIM 2180500200033 35. 82. 2.3E-04 2.3E-04 3.2180500200034 37. 86. 3.8E-04 2.2180500200035 51. 128. 0. 2.34E-03 3.7E-04 1.2180500200036 55. 136. 1.7E-04 1.3E-05 2180500200037 ENDDATA 6 0 2180500200038 ENDSUBENT 37 0 2180500299999 NOSUBENT 21805003 20161001 22532180500300001 SUBENT 21805004 20161001 22532180500400001 BIB 8 14 2180500400002 REACTION (90-TH-232(N,F)ELEM/MASS,IND,FY,,FIS) 2180500400003 DECAY-DATA (41-NB-96,23.5HR,DG,778.2,0.968) 2180500400004 (41-NB-98-M,51.3MIN,DG,787.4,0.932) 2180500400005 MONITOR (90-TH-232(N,F)41-NB-97-G,IND/M+,FY,,FIS) 2180500400006 DECAY-MON (41-NB-97-G,72.1MIN,DG,657.9,0.984) 2180500400007 COMMENT The cited Nb-97-g yield is (4.52+-0.19)%. 2180500400008 MONIT-REF cannot be given, because no such data 2180500400009 in the ref. that authors gave in the article. 2180500400010 FLAG (1.) The total independent yield of Nb-98 is 2180500400011 (3.20+-0.7)E-3%. 2180500400012 (2.) The given yield represents an upper limit. 2180500400013 STATUS (TABLE) Tbl. II from PR/C,25,2519,1982 2180500400014 HISTORY (20161001A) SD: MONIT-REF deleted, COMMENT and 2180500400015 DECAY-DATA added. 2180500400016 ENDBIB 14 0 2180500400017 COMMON 4 3 2180500400018 ELEM-NRM MASS-NRM MONIT MONIT-ERR 2180500400019 NO-DIM NO-DIM PC/FIS PC/FIS 2180500400020 41. 97. 4.52 0.19 2180500400021 ENDCOMMON 3 0 2180500400022 DATA 6 2 2180500400023 ELEMENT MASS ISOMER DATA DATA-ERR FLAG 2180500400024 NO-DIM NO-DIM NO-DIM PC/FIS PC/FIS NO-DIM 2180500400025 41. 96. 4.2E-05 2.2180500400026 41. 98. 1. 2.48E-03 5.3E-04 1.2180500400027 ENDDATA 4 0 2180500400028 ENDSUBENT 27 0 2180500499999 ENDENTRY 4 0 2180599999999