ENTRY 23803 20210610 23012380300000001 SUBENT 23803001 20210610 23012380300100001 BIB 10 21 2380300100002 TITLE Some chain yields in the asymmetric fission of 2380300100003 thorium-232 induced by 3 and 14.7 MeV neutrons 2380300100004 AUTHOR (S.J.Lyle,G.R.Martin,Md.M.Rahman) 2380300100005 REFERENCE (J,RCA,9,90,1968) 2380300100006 INSTITUTE (2UK KEN,2UK DUR) 2380300100007 SAMPLE ~1 g of Th in nitrate or basic nitrate form. 2380300100008 DETECTOR (PROPC) Sugarman type gas-flow end-window proportional 2380300100009 counter with metallized "Melinex" window of 1 mg/cm2 2380300100010 thickness, 90% Ar + 10% methane mixture as working gas.2380300100011 (SCIN) Proton-recoil scintillator for measurement of 2380300100012 the flux variation. 2380300100013 METHOD (CHSEP) 2380300100014 REL-REF (R,,S.Katcoff,J,NUC,18,(11),201,1960) 2380300100015 And Nucl.Data Sheets. 2380300100016 Decay data. 2380300100017 ADD-RES Table 2 of Radiochimica Acta,v.9,p.90,1968: 2380300100018 Calculated number of secondary neutrons emitted by 2380300100019 fragment pairs. 2380300100020 Table 4 of Radiochimica Acta,v.9,p.90,1968: 2380300100021 calculated centroid peak masses. 2380300100022 HISTORY (20200601C) M.M. 2380300100023 ENDBIB 21 0 2380300100024 NOCOMMON 0 0 2380300100025 ENDSUBENT 24 0 2380300199999 SUBENT 23803002 20210610 23012380300200001 BIB 10 32 2380300200002 REACTION 1((90-TH-232(N,F)MASS,CHN,FY)/ 2380300200003 (90-TH-232(N,F)40-ZR-97,CUM,FY)) 2380300200004 2(90-TH-232(N,F)MASS,CHN,FY) 2380300200005 MONITOR 2(90-TH-232(N,F)40-ZR-97,CUM,FY) For all masses except 2380300200006 mass=131, for mass=131 Mo-99 was used. 2380300200007 Yields for I-131 measured relative to Mo-99 were 2380300200008 converted to yields relative to Zr-97 using the 2380300200009 experimentally determined Mo-99/Zr-97 ratio. 2380300200010 FACILITY (CCW,2UK DUR) for 14.7+-0.2 MeV neutrons 2380300200011 INC-SOURCE (D-T) 2380300200012 INC-SPECT Total flux 2.E+9 n/sec 2380300200013 FLAG Substance Nuclides No.of 2380300200014 counted measured expts. 2380300200015 (1.) AgBr Br83 5 2380300200016 (2.) AgBr Br84m+Br84g 4 2380300200017 (3.) Zr(C(8)H(7)O(3))4 Zr97+Nb97m+Nb97g 2380300200018 (4.) PbMoO(4) Mo99+Tc99m 5 2380300200019 (5.) SbC(10)H(11)O(6) Sb129+Te129 4 2380300200020 (6.) AgI I131 4 2380300200021 (7.) Pr(2)(C(2)O(4))(3)10H(2)O Pr145 4 2380300200022 ANALYSIS Mirror points were plotted using NU=4.4 n/fis. 2380300200023 REL-REF (A,23713002,S.J.Lyle+,J,RCA,3,80,1964) 2380300200024 (A,13095001,K.M.Broom,J,PR,133,B874,1964) 2380300200025 (A,13087001,R.Ganapathy+,J,JIN,28,2071,1966) 2380300200026 Subents 002,003 2380300200027 (A,41736003,V.A.Vlasov+,B,NEJTRONFIZ,,235,1961) 2380300200028 ref.is given as R,AEC-TR-4665,1965. 2380300200029 .And J.Sellars, unpublished work [30], 2380300200030 2.76 %/fis for mass=97, 1.96 %/fis for mass=99) 2380300200031 Satisfactory agreement, see Table 3. 2380300200032 ERR-ANALYS (DATA-ERR) Standard error of mean. 2380300200033 STATUS (TABLE) Table 1 of Radiochimica Acta,v.9,p.90,1968 2380300200034 ENDBIB 32 0 2380300200035 COMMON 2 3 2380300200036 EN EN-RSL-HW 2380300200037 MEV MEV 2380300200038 14.7 0.2 2380300200039 ENDCOMMON 3 0 2380300200040 DATA 6 7 2380300200041 MASS DATA 1DATA-ERR 1DATA 2DATA-ERR 2FLAG 2380300200042 NO-DIM NO-DIM NO-DIM PC/FIS PC/FIS NO-DIM 2380300200043 83. 0.583 0.023 1.69 0.07 1. 2380300200044 84. 0.831 0.013 2.41 0.04 2. 2380300200045 97. 1.010 2.93 3. 2380300200046 99. 0.677 0.023 1.96 0.07 4. 2380300200047 129. 0.320 0.011 0.929 0.032 5. 2380300200048 131. 0.842 0.045 2.44 0.13 6. 2380300200049 145. 0.821 0.021 2.38 0.06 7. 2380300200050 ENDDATA 9 0 2380300200051 ENDSUBENT 50 0 2380300299999 SUBENT 23803003 20210610 23012380300300001 BIB 10 33 2380300300002 REACTION 1((90-TH-232(N,F)MASS,CHN,FY)/ 2380300300003 (90-TH-232(N,F)40-ZR-97,CUM,FY)) 2380300300004 2(90-TH-232(N,F)MASS,CHN,FY) 2380300300005 MONITOR 2(90-TH-232(N,F)40-ZR-97,CUM,FY) For all masses except 2380300300006 mass=131, for mass=131 Mo-99 was used. 2380300300007 Yields for I-131 measured relative to Mo-99 were 2380300300008 converted to yields relative to Zr-97 using the 2380300300009 experimentally determined Mo-99/Zr-97 ratio. 2380300300010 FACILITY (VDG,2UK KEN) for 3.0+-0.4 MeV neutrons 2380300300011 INC-SOURCE (D-D) 400 keV deuterons 2380300300012 INC-SPECT Total flux 5.E+8 n/sec 2380300300013 FLAG Substance Nuclides No.of 2380300300014 counted measured expts. 2380300300015 (1.) AgBr Br83 3 2380300300016 (2.) AgBr Br84m+Br84g 3 2380300300017 (3.) Zr(C(8)H(7)O(3))4 Zr97+Nb97m+Nb97g 2380300300018 (4.) PbMoO(4) Mo99+Tc99m 4 2380300300019 (5.) SbC(10)H(11)O(6) Sb129+Te129 3 2380300300020 (6.) Te Te132+I132 3 2380300300021 (7.) Ce(2)(C(2)O(4))3*9H(2)O Ce143+Pr143 3 2380300300022 (8.) Pr(2)(C(2)O(4))(3)10H(2)O Pr145 3 2380300300023 ANALYSIS Mirror points were plotted using NU=2.4 n/fis. 2380300300024 REL-REF (A,13367001,A.Turkevich+,J,PR,84,52,1951) 2380300300025 (A,30947003,R.H.Iyer+,J,JIN,25,465,1963) 2380300300026 (A,13095001,K.M.Broom,J,PR,133,B874,1964) 2380300300027 (A,22791003,M.Bresesti+,J,JIN,29,1189,1967) 2380300300028 (A,13463002,T.J.Kennett+,J,CJP,35,969,1957) 2380300300029 (A,13238032,J.M.Crook+,R,TID-4500,1963) 2380300300030 .And J.Sellars, unpublished work [30], 2380300300031 4.57 %/fis for mass=97, 2.78 %/fis for mass=99. 2380300300032 Satisfactory agreement, see Table 3. 2380300300033 ERR-ANALYS (DATA-ERR) Standard error of mean. 2380300300034 STATUS (TABLE) Table 1 of Radiochimica Acta,v.9,p.90,1968 2380300300035 ENDBIB 33 0 2380300300036 COMMON 2 3 2380300300037 EN EN-RSL-HW 2380300300038 MEV MEV 2380300300039 3.0 0.4 2380300300040 ENDCOMMON 3 0 2380300300041 DATA 6 8 2380300300042 MASS DATA 1DATA-ERR 1DATA 2DATA-ERR 2FLAG 2380300300043 NO-DIM NO-DIM NO-DIM PC/FIS PC/FIS NO-DIM 2380300300044 83. 0.399 0.004 1.97 0.02 1. 2380300300045 84. 0.604 0.013 2.99 0.06 2. 2380300300046 97. 1.003 4.96 3. 2380300300047 99. 0.562 0.016 2.78 0.08 4. 2380300300048 129. 0.030 0.001 0.148 0.005 5. 2380300300049 132. 0.631 0.060 3.12 0.030 6. 2380300300050 143. 1.254 0.021 6.20 0.10 7. 2380300300051 145. 0.999 0.038 4.94 0.19 8. 2380300300052 ENDDATA 10 0 2380300300053 ENDSUBENT 52 0 2380300399999 ENDENTRY 3 0 2380399999999