ENTRY 30516 20220203 32073051600000001 SUBENT 30516001 20220203 32073051600100001 BIB 12 47 3051600100002 TITLE Charge distribution in nuclear fission: Determination 3051600100003 of fractional cumulative yields of 134Te and 135I in 3051600100004 the spontaneous fission of 252Cf 3051600100005 AUTHOR (S.B.Manohar, T.Datta, S.S.Rattan, S.Prakash, 3051600100006 M.V.Ramaniah, S.Singh, P.P.Venkatesan, S.P.Dange, 3051600100007 R.C.C.Nair) 3051600100008 INSTITUTE (3INDTRM) 3051600100009 REFERENCE (J,PR/C,17,188,1978) 252Cs, 134Te, 135I 3051600100010 (C,77PUNE,2,249,1977) Shorter, other fission products 3051600100011 (P,BARC-974,72,1978) 245Cm, 99Mo, 135I 3051600100012 (P,BARC-974,65,1978) 252Cf, 134Te, 135I 3051600100013 (C,76AHMEDABA,2,119,1976) 252Cf, 134Te, 135I graph. 3051600100014 SAMPLE 252Cf electrodeposited target (1.7 ug) were collected 3051600100015 on 0.5 mm, Al-catcher foil at 1 mm distance. 3051600100016 245Cm target 3 ug, electrodeposited. Covered with the 3051600100017 Al-catcher foil. 3051600100018 DETECTOR (GELI) 60 cm3 with resolution 1.5 keV at 122 keV and 3051600100019 3.9 keV at 1332 keV. 3051600100020 METHOD Collection of fission fragments on Al-catcher foil. 3051600100021 The amounts of the investigated fission product 3051600100022 nuclei and of their daughters was determined by 3051600100023 measuring the daughters' gamma activities at 3051600100024 different cooling times. 3051600100025 ANALYSIS The required half-lives of the fission products and 3051600100026 their daughters were taken from the 'Karlsruhe 3051600100027 Nuklid-karte' 1974. 3051600100028 From the numbers of nuclei of a given fission product 3051600100029 'm', n(m), and of its daughter 'd', n(d) , at the end 3051600100030 of irradiation, the fractional cumulative yield ('FCY')3051600100031 was obtained from the relation FCY(m)= n(m)/n(m)+n(d). 3051600100032 DECAY-DATA ((1.)52-TE-134,41.8MIN,B-) 3051600100033 ((1.)53-I-134-G,52.0MIN,B-) 3051600100034 ((2.)53-I-135,6.59HR,B-)) The branching ratio for the 3051600100035 decay of I-135 to Xe-135m was taken as 8.5% (Hawkins 3051600100036 et al., Can.J.Phys.44,237(1966)). 3051600100037 ((2.)54-XE-135-M,15.3MIN,B-) 3051600100038 ((2.)54-XE-135-G,9.17HR) 3051600100039 STATUS (APRVD) by M.V.Ramaniah,26 Nov.1979. 3051600100040 ERR-ANALYS (DATA-ERR) No information on source of uncertainties. 3051600100041 HISTORY (19790926C) TL. 3051600100042 (19791210A) TL. Status 'APRVD' and a few comments 3051600100043 made by authors added. 3051600100044 (20090312A) SD:Updated to new date formats,lower case, 3051600100045 and formal corrections. 3051600100046 (20120504A) VS. INC-SOURCE moved to 003. 3051600100047 (20220203A) VT Revison in 002-004 3051600100048 (20220203U) VT REFERENCE: BARC-974 65-> BARC-974,65 3051600100049 ENDBIB 47 0 3051600100050 NOCOMMON 0 0 3051600100051 ENDSUBENT 50 0 3051600199999 SUBENT 30516002 20220203 32073051600200001 BIB 5 13 3051600200002 REACTION (98-CF-252(0,F)ELEM/MASS,CUM,FY,,FRC) 3051600200003 COMMENT In Table 3 of Phys.Rev.C,17,188, the fract. cum. yield 3051600200004 of Te-134 is given as 0.69. According to the author, 3051600200005 this is a misprint, and the average value given in 3051600200006 the data-section below (taken from Table 1 of the 3051600200007 paper) is correct. 3051600200008 FLAG (1.) Data are from 77Pune,2,249. The decay data used 3051600200009 are not given in this reference but they were also 3051600200010 taken from the 'Karlsruhe Nuklidkarte',1974. 3051600200011 (2.) Data are from Phys.Rev.C,17,188. 3051600200012 STATUS (TABLE) Text (p.250) of 77PUNE,2(1979) 249 + 3051600200013 Text (p.189,190) of Phys.Rev.C 17 (1978) 188 3051600200014 HISTORY (20220203A) VT REACTION: SF8-> FRC inserted 3051600200015 ENDBIB 13 0 3051600200016 NOCOMMON 0 0 3051600200017 DATA 6 5 3051600200018 ELEMENT MASS DATA DATA-ERR FLAG DECAY-FLAG 3051600200019 NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM 3051600200020 42. 99. 0.989 0.004 1. 3051600200021 46. 112. 0.99 0.01 1. 3051600200022 52. 132. 0.94 0.05 1. 3051600200023 52. 134. 0.791 0.026 2. 1. 3051600200024 53. 135. 0.975 0.006 2. 2. 3051600200025 ENDDATA 7 0 3051600200026 ENDSUBENT 25 0 3051600299999 SUBENT 30516003 20220203 32073051600300001 BIB 6 8 3051600300002 REACTION (96-CM-245(N,F)ELEM/MASS,CUM,FY,,FRC) 3051600300003 FACILITY (REAC,3INDTRM) APSARA reactor 3051600300004 INC-SOURCE (REAC) Flux ~10**12 n/cm2*sec 3051600300005 COMMENT The decay data used are not given in this reference, 3051600300006 but they were also taken from the 'Karlsruhe Nuklid- 3051600300007 karte',1974. 3051600300008 STATUS (TABLE) Text (p.250) of 77PUNE,2(1979) 249 3051600300009 HISTORY (20220203A) VT REACTION: SF8-> FRC inserted 3051600300010 ENDBIB 8 0 3051600300011 COMMON 1 3 3051600300012 EN-DUMMY 3051600300013 EV 3051600300014 0.025 3051600300015 ENDCOMMON 3 0 3051600300016 DATA 5 2 3051600300017 ELEMENT MASS DATA DATA-ERR DECAY-FLAG 3051600300018 NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM 3051600300019 42. 99. 0.969 0.008 3051600300020 53. 135. 0.951 0.014 2. 3051600300021 ENDDATA 4 0 3051600300022 ENDSUBENT 21 0 3051600399999 SUBENT 30516004 20220203 32073051600400001 BIB 4 7 3051600400002 REACTION (98-CF-252(0,F)MASS,SEC,ZP) 3051600400003 ANALYSIS Derived from measured fract. cum. yields, assuming a 3051600400004 Gaussian charge distribution with standard deviation 3051600400005 = 0.56+-0.06 . 3051600400006 STATUS (TABLE) Text (p.188) of Phys. Rev. C 17 (1978) 188 3051600400007 (DEP,30516002) 3051600400008 HISTORY (20220203U) VT STATUS added 3051600400009 ENDBIB 7 0 3051600400010 NOCOMMON 0 0 3051600400011 DATA 4 2 3051600400012 MASS DATA DATA-ERR DECAY-FLAG 3051600400013 NO-DIM NO-DIM NO-DIM NO-DIM 3051600400014 134. 52.03 0.06 1. 3051600400015 135. 52.40 0.06 2. 3051600400016 ENDDATA 4 0 3051600400017 ENDSUBENT 16 0 3051600499999 ENDENTRY 4 0 3051699999999