ENTRY D6105 20120129 D081D610500000001 SUBENT D6105001 20120129 D081D610500100001 BIB 14 47 D610500100002 TITLE Effect of entrance channel parameters on fission D610500100003 fragment angular momentum in medium energy fission D610500100004 AUTHOR (H.Naik, T.Datta, S.P.Dange, R.Guin, P.K.Pujari, D610500100005 S.M.Sahakundu, S.Prakash) D610500100006 INSTITUTE (3INDTRM) Radiochemistry Division D610500100007 REFERENCE (J,ZP/A,342,95,1992) D610500100008 FACILITY (CYCLO,3INDVEC) D610500100009 SAMPLE Stacks of natural uranium target foils (0.075 mm thick)D610500100010 and aluminium catcher foil (0.025 mm) thick D610500100011 DETECTOR (HPGE) HPGe detector coupled to a 4 K multichannel D610500100012 analyser in live time mode. D610500100013 The resolution of the detector system was 2.0 keV at D610500100014 1332.0 keV gamma line of 60-Co and the dead time D610500100015 during the counting was always less than 10% to D610500100016 avoid the pile-up effect. D610500100017 METHOD (REC,RCHEM,GSPEC) After the irradiations the aluminium D610500100018 catcher foil for each uranium metal foil facing the D610500100019 beam was dissolved and iodine was separated D610500100020 radiochemically within 30 to 35 minutes from the end D610500100021 of the irradiation. D610500100022 Standard aliquots of the purified iodine samples were D610500100023 counted as a function of time at a fixed geometry on D610500100024 an efficiency calibrated 90 c.c. HPGe-detector D610500100025 coupled to a 4 K multichannel analyser in live time D610500100026 mode. D610500100027 INC-SOURCE The beam current of 1-2 uA during irradiation was D610500100028 measured using a Faraday cup. D610500100029 ANALYSIS (DECAY) From the observed activities of 772.6 keV D610500100030 composite gamma lines of 132-I-m,g, separation time D610500100031 activities of the metastable (m) and ground (g) D610500100032 states were calculated using standard decay-growth D610500100033 equations. D610500100034 The independent isomeric yield ratios of 132-I D610500100035 isomers obtained from the separation time activities D610500100036 after correcting for the precursor contributions. D610500100037 DECAY-DATA (53-I-132-G,2.38HR,DG,772.6) 4+ D610500100038 (53-I-132-M,83.6MIN,DG,772.6) 8- D610500100039 ERR-ANALYS (DATA-ERR) Quoted errors including D610500100040 - counting statistics; D610500100041 - absolute abundances of the gamma lines; D610500100042 - detector efficiencies; D610500100043 - cumulative yield of the precursor; D610500100044 - the least-square analysis. D610500100045 STATUS (APRVD)Approved by Dr.H.Naik, RCD, BARC. D610500100046 HISTORY (20101025C) Mr.Paresh Prajapati, Mr. Devesh Raj and D610500100047 Dr. H. Naik of B.A.R.C, Mumbai D610500100048 (20120129U) On. Finalized D610500100049 ENDBIB 47 0 D610500100050 NOCOMMON 0 0 D610500100051 ENDSUBENT 50 0 D610500199999 SUBENT D6105002 20120129 D081D610500200001 BIB 3 3 D610500200002 REACTION (92-U-238(A,F)53-I-132-M/T,IND,FY/RAT,,FIS) D610500200003 MISC-COL (MISC) fission fragment angular momenta (Jrms) D610500200004 STATUS (TABLE) TAble 1 of Z.Phys.A 342(1992)95 D610500200005 ENDBIB 3 0 D610500200006 NOCOMMON 0 0 D610500200007 DATA 5 5 D610500200008 EN DATA DATA-ERR MISC MISC-ERR D610500200009 MEV NO-DIM NO-DIM NO-DIM NO-DIM D610500200010 25.2 0.59 0.08 10.1 1.4 D610500200011 27.0 0.68 0.06 12.2 1.3 D610500200012 33.1 0.76 0.05 14.3 1.6 D610500200013 39.1 0.76 0.05 14.4 1.5 D610500200014 44.2 0.78 0.04 15.4 1.5 D610500200015 ENDDATA 7 0 D610500200016 ENDSUBENT 15 0 D610500299999 ENDENTRY 2 0 D610599999999