ENTRY 33031 20211117 32033303100000001 SUBENT 33031001 20211117 32033303100100001 BIB 13 61 3303100100002 TITLE Charge Distribution for Light Mass Fission Products 3303100100003 in the Thermal Neutron Induced Fission of 229Th, 3303100100004 241Pu, 245Cm and 252Cf(SF). 3303100100005 AUTHOR (H.Naik, S.P.Dange, R.J.Singh) 3303100100006 INSTITUTE (3INDTRM) 3303100100007 REFERENCE (J,RCA,83,109,1998) 3303100100008 FACILITY (REAC,3INDTRM) Research reactor CIRUS using pneumatic 3303100100009 facility for irradiation for short lived products. 3303100100010 Research (Swimming Pool Type) reactor APSARA for long 3303100100011 lived fission products. 3303100100012 SAMPLE For shortlived fission products nitrate solution of 3303100100013 229Th (10 ug), 241Pu (2 ug), 245Cm (1 ug) sealed in 3303100100014 polypropelebne tubes were irradiated for 5 seconds to 3303100100015 30 minutes using pneumatic carrier facility of CIRUS 3303100100016 reactor at a flux of 5x10**12 n/cm2/sec. 3303100100017 For long lived fission products, electrodeposited 3303100100018 target of 229Th (100 ug), 241Pu (25 ug), and 245Cm 3303100100019 (4 ug) were irradiated in the APSARA reactor for 3303100100020 5-60 minutes at a flux of 1.2x10**12 n/cm2/sec. 3303100100021 In case of 252Cf(SF) recoil fission products were 3303100100022 collected on Al foil from an electrodeposited source 3303100100023 -(3 ug) 3303100100024 DETECTOR (HPGE) 80 c.c. HPGe detector connected to a PC based 3303100100025 4K channel analyzer. 3303100100026 Resolution of the detector system was 2.0 keV at 1332 3303100100027 keV of 60Co. 3303100100028 METHOD (REC,GSPEC) Collection of fission products using 3303100100029 recoil catcher technique, off line gamma ray 3303100100030 spectrometric analysis of fission products in the 3303100100031 irradiated sample. 3303100100032 ANALYSIS Photo-peak areas were obtained from the gamma rays of 3303100100033 light fission products; 3303100100034 a) 229Th(n,f): 86Br, 90Kr, 91,92,93,94Sr 95Y, 97Zr 3303100100035 b) 241Pu(n,f): 91,92,94Sr, 97Zr, 105Tc 3303100100036 c) 245Cm(n,f): 90Kr,91,92,94Sr,97Zr, 108,109Ru, 112Pd 3303100100037 d) 252Cf(sf): 106Tc 3303100100038 (DECAY) Their cumulative yields - (CY) were determined 3303100100039 using decay equation. 3303100100040 From the cumulative yields, FCY were determined using 3303100100041 mass chain yield from literature. 3303100100042 FCY of some fission products like 91,92Sr,97Zr were 3303100100043 determined using decay growth equation. 3303100100044 From the FCY values, the most probable charge, width 3303100100045 parameter sigma-Z and charge polarization delta-Z 3303100100046 were deduced. 3303100100047 ERR-ANALYS (DATA-ERR) The error in th FCY of the light mass 3303100100048 fission products is precissional error due to 3303100100049 replicate measurement. 3303100100050 REL-REF (R,,E.Browne+,B,BROWNE,,,1986) 3303100100051 Decay data used in the present work 3303100100052 (R,,J.Blachot+,J,APH,6,3,1982) 3303100100053 Decay data used in the present work 3303100100054 STATUS (TABLE) Table 1 of Radiochim.Acta 83(1998)109 3303100100055 HISTORY (20100902C) S.V. Suryanarayana, H. Naik, S.Taova 3303100100056 (20120124A) VS. COMMON moved from Subentry 001 to 3303100100057 002,003 and 004. 3303100100058 (20120427U) On. RESULT and STATUS moved from 002-005 3303100100059 (20211013A) VS. REACTION ratio -> SF8=FRC and 3303100100060 MXW added in 002-005. EN -> EN-DUMMY in 002-004. 3303100100061 RESULT deleted in 001. 3303100100062 REFERENCE BARC-1381,37,1987 added in 003. 3303100100063 ENDBIB 61 0 3303100100064 NOCOMMON 0 0 3303100100065 ENDSUBENT 64 0 3303100199999 SUBENT 33031002 20211117 32033303100200001 BIB 2 3 3303100200002 REACTION (90-TH-229(N,F)ELEM/MASS,CUM,FY,,FRC) 3303100200003 HISTORY (20120427U) On. RESULT and STATUS moved to 001 3303100200004 (20211013A) VS. REACTION ratio -> SF8=FRC and MXW 3303100200005 ENDBIB 3 0 3303100200006 COMMON 1 3 3303100200007 EN-DUMMY 3303100200008 EV 3303100200009 0.025 3303100200010 ENDCOMMON 3 0 3303100200011 DATA 4 8 3303100200012 ELEMENT MASS DATA DATA-ERR 3303100200013 NO-DIM NO-DIM NO-DIM NO-DIM 3303100200014 35. 86. 0.855 0.037 3303100200015 35. 87. 0.506 0.035 3303100200016 36. 90. 0.692 3303100200017 38. 91. 0.9906 0.0019 3303100200018 38. 92. 0.9838 0.0045 3303100200019 38. 93. 0.973 0.059 3303100200020 38. 94. 0.825 0.012 3303100200021 40. 97. 0.9805 0.0121 3303100200022 ENDDATA 10 0 3303100200023 ENDSUBENT 22 0 3303100299999 SUBENT 33031003 20211117 32033303100300001 BIB 3 6 3303100300002 REACTION (94-PU-241(N,F)ELEM/MASS,CUM,FY,,FRC) 3303100300003 REFERENCE (P,BARC-1381,37,1987) 3303100300004 Preliminary results for 91,92Sr. 3303100300005 HISTORY (20120427U) On. RESULT and STATUS moved to 001 3303100300006 (20211013A) VS. REACTION ratio -> SF8=FRC 3303100300007 Reference BARC-1381,37,1987 added. 3303100300008 ENDBIB 6 0 3303100300009 COMMON 1 3 3303100300010 EN-DUMMY 3303100300011 EV 3303100300012 0.025 3303100300013 ENDCOMMON 3 0 3303100300014 DATA 4 5 3303100300015 ELEMENT MASS DATA DATA-ERR 3303100300016 NO-DIM NO-DIM NO-DIM NO-DIM 3303100300017 38. 91. 0.9961 0.0026 3303100300018 38. 92. 0.9847 0.0105 3303100300019 38. 94. 0.9473 0.0103 3303100300020 40. 97. 0.9983 0.0016 3303100300021 43. 105. 0.974 0.028 3303100300022 ENDDATA 7 0 3303100300023 ENDSUBENT 22 0 3303100399999 SUBENT 33031004 20211117 32033303100400001 BIB 2 3 3303100400002 REACTION (96-CM-245(N,F)ELEM/MASS,CUM,FY,,FRC) 3303100400003 HISTORY (20120427U) On. RESULT and STATUS moved to 001 3303100400004 (20211013A) VS. REACTION ratio -> SF8=FRC 3303100400005 ENDBIB 3 0 3303100400006 COMMON 1 3 3303100400007 EN-DUMMY 3303100400008 EV 3303100400009 0.025 3303100400010 ENDCOMMON 3 0 3303100400011 DATA 4 7 3303100400012 ELEMENT MASS DATA DATA-ERR 3303100400013 NO-DIM NO-DIM NO-DIM NO-DIM 3303100400014 38. 91. 0.9853 0.0030 3303100400015 38. 92. 0.9746 0.0174 3303100400016 38. 94. 0.782 0.148 3303100400017 40. 97. 0.9678 0.0097 3303100400018 44. 108. 0.948 0.028 3303100400019 44. 109. 0.611 0.078 3303100400020 46. 112. 0.976 0.015 3303100400021 ENDDATA 9 0 3303100400022 ENDSUBENT 21 0 3303100499999 SUBENT 33031005 20211117 32033303100500001 BIB 2 3 3303100500002 REACTION (98-CF-252(0,F)ELEM/MASS,CUM,FY,,FRC) 3303100500003 HISTORY (20120427U) On. RESULT and STATUS moved to 001 3303100500004 (20211013A) VS. REACTION ratio -> SF8=FRC 3303100500005 ENDBIB 3 0 3303100500006 NOCOMMON 0 0 3303100500007 DATA 4 1 3303100500008 ELEMENT MASS DATA DATA-ERR 3303100500009 NO-DIM NO-DIM NO-DIM NO-DIM 3303100500010 43. 106. 0.974 0.005 3303100500011 ENDDATA 3 0 3303100500012 ENDSUBENT 11 0 3303100599999 ENDENTRY 5 0 3303199999999