ENTRY 30766 20101008 31483076600000001 SUBENT 30766001 20101008 31483076600100001 BIB 8 21 3076600100002 TITLE Determination of fractional cumulative yields of 91Sr,3076600100003 92Sr and 134Te in the thermal neutron induced fission 3076600100004 of 233U and 241Pu 3076600100005 AUTHOR (H.Naik, S.P.Dange, T.Datta, S.Prakash, M.V.Ramaniah) 3076600100006 INSTITUTE (3INDTRM) Radiochemistry Division 3076600100007 REFERENCE (J,RCA,40,(4),175,1986) 3076600100008 (P,BARC-1297,11,1986) 3076600100009 H.Naik+, preliminary value for 241Pu(n,f) given 3076600100010 METHOD (CHSEP) After irradiation, standard aliquots were 3076600100011 counted at a fixed geometry. The growth and decay of 3076600100012 fission products was followed by gamma-spectrometry. 3076600100013 DETECTOR (HPGE) 45 ccm (resolution=2.5 keV at 1332 keV) coupled 3076600100014 to a 4 k channel analyzer. the deadtime was kept 3076600100015 below 10%. 3076600100016 ERR-ANALYS (DATA-ERR) No information given. Compiler assumes 3076600100017 that totalerror is given corresponding to 1 standard 3076600100018 deviation. 3076600100019 HISTORY (19871130C) ML 3076600100020 (19890601A) ML: Part of san 3 transferred to new SAN 4 3076600100021 (20040311U) SD: Corrected 4-dig. year and lower cases. 3076600100022 (20101008A) On. REFERENCE: P,BARC-1297,11,1986 added 3076600100023 ENDBIB 21 0 3076600100024 COMMON 1 3 3076600100025 EN-MEAN 3076600100026 EV 3076600100027 0.025 3076600100028 ENDCOMMON 3 0 3076600100029 ENDSUBENT 28 0 3076600199999 SUBENT 30766002 19890711 00003076600200001 BIB 9 31 3076600200002 REACTION ((92-U-233(N,F)ELEM/MASS,CUM,FY,,SPA)/ 3076600200003 (92-U-233(N,F)MASS,CHN,FY,,SPA)) 3076600200004 Fractional cumulative yields 3076600200005 FACILITY (REAC,3INDTRM) APSARA swimming pool reactor, 3076600200006 thermal neutron flux was about 1.2*10e+12 n/cm2/sec, 3076600200007 irradiation times ranged from 20 min to 1 hour. 3076600200008 SAMPLE Approx. 100 micrograms of 233U electrodeposited, 3076600200009 covered with superpure Al-foils of 0.0025 cm thickness.3076600200010 Standard aliquots for counting were made by dissolving 3076600200011 the catcher foils 3076600200012 MONITOR (92-U-233(N,F)52-TE-132,(CUM),FY,,SPA) Assumed by the 3076600200013 compiler.Quoting the reference: '132Te was used as the 3076600200014 fission rate monitor'.No other information was given. 3076600200015 ANALYSIS For the fractional cumulative yields of 91Sr and 92Sr 3076600200016 The decay curves of 91mY and 92Y respectively were 3076600200017 followed.Only general formulae for analysis are given. 3076600200018 ASSUMED The independent yields of 91mY and 91gY were assumed 3076600200019 to be equal, i.e. isomeric ratio = 1. 3076600200020 DECAY-DATA ((1.)37-RB-91,58.2SEC) 3076600200021 ((1.)38-SR-91,9.5HR,B-,,0.58, 3076600200022 B-,,0.42) TO 91mY and 91gY resp. 3076600200023 ((1.)39-Y-91-M,49.71MIN,DG,,1.0) 100 % IT 3076600200024 ((1.)39-Y-91-G,58.51D) 3076600200025 ((2.)37-RB-92,4.48SEC) 3076600200026 ((2.)38-SR-92,2.71HR) 3076600200027 ((2.)39-Y-92,3.54HR) 3076600200028 No gamma-ray data used for spectrum analysis are given.3076600200029 ADD-RES Assuming gaussian charge dispersion (width=0.56+-0.06),3076600200030 the values derived for the most probable charge,zp,are 3076600200031 zp(a=91)=37.325+-0.575 zp(a=92)=37.400+-0.150 3076600200032 STATUS Data taken from table 1 of reference 3076600200033 ENDBIB 31 0 3076600200034 NOCOMMON 0 0 3076600200035 DATA 5 2 3076600200036 ELEMENT MASS DATA DATA-ERR DECAY-FLAG 3076600200037 NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM 3076600200038 38. 91. 0.981 0.018 1. 3076600200039 38. 92. 0.973 0.013 2. 3076600200040 ENDDATA 4 0 3076600200041 ENDSUBENT 40 0 3076600299999 SUBENT 30766003 20101008 31483076600300001 BIB 11 34 3076600300002 REACTION ((94-PU-241(N,F)ELEM/MASS,CUM,FY,,SPA)/ 3076600300003 (94-PU-241(N,F)MASS,CHN,FY,,SPA)) 3076600300004 RESULT (FRCUM) Fractional cumulative yield. 3076600300005 Authors assumed that the isobaric mass chains 91,92 3076600300006 consist of Sr and Y only. 3076600300007 MONITOR (94-PU-241(N,F)52-TE-132,(CUM),FY,,SPA) 3076600300008 Assumed by the compiler quoting the reference, 3076600300009 '132Te was used as the fission rate monitor'. 3076600300010 No other information was given. 3076600300011 FACILITY (REAC,3INDTRM) APSARA 3076600300012 Thermal neutron flux=approx. 1.2*10e+12 n/cm2/sec 3076600300013 irradiation times ranged from 20 min to 1 hour. 3076600300014 SAMPLE - Electrodeposited targets of approx. 25 mu-grams. 3076600300015 - 241Pu covered with 0.0025 cm superpure Al-foil. 3076600300016 - Standard aliquots for counting were made by 3076600300017 dissolving the catcher foil. 3076600300018 DECAY-DATA ((1.)38-SR-91,9.5HR,B-,,0.58, 3076600300019 B-,,0.42) to 91mY and 91gY resp. 3076600300020 ((2.)38-SR-92,2.71HR) 3076600300021 No gamma-ray data used for spectrum analysis given 3076600300022 ANALYSIS For the fractional cumulative yields of 91Sr and 92Sr 3076600300023 the decay curves of 91mY and 92Y respectively were 3076600300024 followed. Only general formulae for analysis are 3076600300025 given. 3076600300026 ASSUMED The independent yields of 91mY and 91gY were assumed 3076600300027 to be equal, i.e. isomeric ratio = 1. 3076600300028 ADD-RES Assuming gaussian charge dispersion 3076600300029 (width=0.56+-0.06), the values derived for the most 3076600300030 probable charge (Zp) are 3076600300031 A= 91 92 3076600300032 ZP= 37.475+-0.525 37.780+-0.225 3076600300033 STATUS (TABLE) Table 1 of J,RCA,40,175,1986 3076600300034 (SPSDD,33031003) H.Naik (2010-10-08) 3076600300035 HISTORY (20101008A) On. Superseded by revised data 3076600300036 ENDBIB 34 0 3076600300037 NOCOMMON 0 0 3076600300038 DATA 5 2 3076600300039 ELEMENT MASS DATA DATA-ERR DECAY-FLAG 3076600300040 NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM 3076600300041 38. 91. 0.965 0.032 1. 3076600300042 38. 92. 0.929 0.036 2. 3076600300043 ENDDATA 4 0 3076600300044 ENDSUBENT 43 0 3076600399999 SUBENT 30766004 20101008 31483076600400001 BIB 10 28 3076600400002 REACTION ((94-PU-241(N,F)52-TE-134,CUM,FY,,SPA)/ 3076600400003 (94-PU-241(N,F)MASS,CHN,FY,,SPA)) 3076600400004 RESULT (FRCUM) Fractional cumulative yield. 3076600400005 Authors assumed that the isobaric mass chains 3076600400006 134 consists only of Te and I. 3076600400007 MONITOR (94-PU-241(N,F)52-TE-132,(CUM),FY,,SPA) 3076600400008 Assumed by the compiler quoting the reference, 3076600400009 '132Te was used as the fission rate monitor'. 3076600400010 No other information was given. 3076600400011 FACILITY (REAC,3INDTRM) CIRUS 3076600400012 Thermal neutron flux=approx. 5*10e+12 n/cm2/sec 3076600400013 irradiation times ranged from 30 to 60 sec 3076600400014 SAMPLE Targets of approximately 2 micrograms 241Pu in form of3076600400015 a nitrate solution.standard aliquots for counting were3076600400016 made by dilution of the irradiated solution. 3076600400017 DECAY-DATA (52-TE-134,41.8MIN) 100% decay to 134gI 3076600400018 No gamma-ray data used for spectrum analysis given 3076600400019 ANALYSIS For obtaining the fractional cumulative yield of 134Te3076600400020 the growth and decay of 134gI was measured by gamma- 3076600400021 spectrometry. 134mI directly formed in fission was 3076600400022 assumed to have decayed completely before measurement.3076600400023 ADD-RES Assuming gaussian charge dispersion 3076600400024 (width=0.56+-0.06), the value derived for the most 3076600400025 probable charge,zp,is: 3076600400026 ZP = 52.27+-0.02 3076600400027 STATUS (TABLE) Table 2 of J,RCA,40,175,1986 3076600400028 (SPSDD,33030015) H.Naik (2010-10-08) 3076600400029 HISTORY (20101008A) On. Superseded by revised data 3076600400030 ENDBIB 28 0 3076600400031 NOCOMMON 0 0 3076600400032 DATA 3 1 3076600400033 MASS DATA DATA-ERR 3076600400034 NO-DIM NO-DIM NO-DIM 3076600400035 134. 0.655 0.016 3076600400036 ENDDATA 3 0 3076600400037 ENDSUBENT 36 0 3076600499999 ENDENTRY 4 0 3076699999999