ENTRY 21686 20230316 2168600000001 SUBENT 21686001 20230316 20231011 2168600100001 BIB 12 43 2168600100002 TITLE Nuclear charge distribution in fission: fractional 2168600100003 cumulative yields of isotopes of krypton and xenon 2168600100004 in reactions Cf-249(n-th,f) and Cf-250(s.f.) 2168600100005 AUTHOR (H.-H.Meixler,K.Wolfsberg,H.O.Denschlag) 2168600100006 INSTITUTE (2GERMNZ) Institut fuer Kernchemie, University of 2168600100007 Mainz. 2168600100008 REFERENCE (J,CJC,61,665,1983) Final publ. 2168600100009 (P,MAINZ-1976,100,1977) - same results. 2168600100010 (P,MAINZ-75,113,1976) - same results. 2168600100011 (W,DENSCHLAG,19801006) Private communication of 2168600100012 H.A.Denschlag with experimental details and data. 2168600100013 (T,MEIXLER,1980) Ph.D. Thesis, Mainz. 2168600100014 FACILITY (REAC,2GERMNZ) TRIGA-reactor. 2168600100015 REL-REF (M,13097001,A.C.Wahl+,J,PR,126,1112,1962) For 2168600100016 experimental method. 2168600100017 METHOD (CHSEP) Radiochemical emanation method for fission 2168600100018 rare gases. 2168600100019 Rb and Xe were isolated radiochemically from the 2168600100020 other fission products. 2168600100021 DETECTOR (GELI) For gamma rays 2168600100022 (PROPC) Anti-coincidence beta counter. 2168600100023 ANALYSIS The number of fission noble gas atoms of a 2168600100024 particular mass escaping from a stearate layer 2168600100025 is compared to the total number of fission products 2168600100026 of that particular chain. 2168600100027 DECAY-DATA ((1.)36-KR-89,3.18MIN,B) 2168600100028 ((2.)36-KR-91,8.6SEC,B) 2168600100029 ((3.)36-KR-92,1.84SEC,B) 2168600100030 ((4.)54-XE-139,39.7SEC,B) 2168600100031 ((5.)54-XE-140,14.SEC,B) 2168600100032 ((6.)54-XE-141,1.73SEC,B) 2168600100033 ((7.)54-XE-142,1.2SEC,B) 2168600100034 ((8.)54-XE-143,0.96SEC,B) 2168600100035 STATUS (TABLE) Tbl. 1 and text from Can.J.Chem.61,665,1983 2168600100036 Data from private communication of Denschlag. 2168600100037 HISTORY (19801017C) G.C. 2168600100038 (19801104E) 2168600100039 (20121109A) SD: Updated to new date formats,lower case.2168600100040 Corrected according last EXFOR rules and Dict. 2168600100041 INC-SOURCE moved to Subent 2. BIB update. COMMON moved2168600100042 to Subent 2 from Subent 1. Ref. on CJC and MAINZ-75 2168600100043 were added. Subent 3 was added from 20711002. 2168600100044 (20230316U) SD: Ref. MAINZ-1976 added. 2168600100045 ENDBIB 43 0 2168600100046 NOCOMMON 0 0 2168600100047 ENDSUBENT 46 0 2168600199999 SUBENT 21686002 20121109 22342168600200001 BIB 4 10 2168600200002 REACTION ((98-CF-249(N,F)ELEM/MASS,CUM,FY,,MXW)/ 2168600200003 (98-CF-249(N,F)MASS,CHN,FY,,MXW)) 2168600200004 SAMPLE .The target consisted of 10 mu-g of 249Cf 2168600200005 electrodeposited on a platinum disc. In part of the 2168600200006 experiments (143Xe) a target of 10 mu-g of 249Cf 2168600200007 deposited on a steel cylinder was used 2168600200008 INC-SOURCE (REAC) .Thermal Maxwellian neutron spectrum 2168600200009 from reactor. Neutron flux of 3 x 10**10 n/cm2/sec 2168600200010 ERR-ANALYS (DATA-ERR) .Total error, including statistical and 2168600200011 systematic errors is given. 2168600200012 ENDBIB 10 0 2168600200013 COMMON 1 3 2168600200014 EN-DUMMY 2168600200015 EV 2168600200016 2.5300E-02 2168600200017 ENDCOMMON 3 0 2168600200018 DATA 6 8 2168600200019 ELEMENT MASS DATA +DATA-ERR -DATA-ERR DECAY-FLAG 2168600200020 NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM 2168600200021 36.0 89.0 0.776 0.010 0.010 1.02168600200022 36.0 91.0 0.320 0.031 0.017 2.02168600200023 36.0 92.0 0.095 0.013 0.013 3.02168600200024 54.0 139.0 0.320 0.035 0.035 4.02168600200025 54.0 140.0 0.125 0.020 0.020 5.02168600200026 54.0 141.0 0.040 0.003 0.003 6.02168600200027 54.0 142.0 0.009 0.003 0.003 7.02168600200028 54.0 143.0 0.0022 0.0008 0.0008 8.02168600200029 ENDDATA 10 0 2168600200030 ENDSUBENT 29 0 2168600299999 SUBENT 21686003 20121109 22342168600300001 BIB 3 9 2168600300002 REACTION ((98-CF-250(0,F)ELEM/MASS,CUM,FY)/ 2168600300003 (98-CF-250(0,F)MASS,CHN,FY)) 2168600300004 SAMPLE The target was 1.2 mu-g of 250Cf electrodeposited on a 2168600300005 platinum disc 2168600300006 ERR-ANALYS (DATA-ERR) .Total error, including statistical and 2168600300007 systematic errors is given. 2168600300008 Uncertainties mainly due to the poor counting 2168600300009 statistics obtained because of the rather weak 2168600300010 250Cf source. 2168600300011 ENDBIB 9 0 2168600300012 NOCOMMON 0 0 2168600300013 DATA 7 6 2168600300014 ELEMENT MASS DATA +DATA-ERR -DATA-ERR DATA-MAX 2168600300015 DECAY-FLAG 2168600300016 NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM 2168600300017 NO-DIM 2168600300018 36.0 91.0 0.348 0.043 0.032 2168600300019 2.0 2168600300020 36.0 92.0 0.099 0.042 0.021 2168600300021 3.0 2168600300022 54.0 139.0 0.236 0.060 0.060 2168600300023 4.0 2168600300024 54.0 140.0 0.147 0.070 0.070 2168600300025 5.0 2168600300026 54.0 141.0 0.091 0.104 0.067 2168600300027 6.0 2168600300028 54.0 142.0 3.6 2168600300029 7.0 2168600300030 ENDDATA 16 0 2168600300031 ENDSUBENT 30 0 2168600399999 SUBENT 21686004 20120708 22342168600400001 BIB 4 7 2168600400002 REACTION ((92-U-235(N,F)ELEM/MASS,CUM,FY,,MXW)/ 2168600400003 (92-U-235(N,F)MASS,CHN,FY,,MXW)) 2168600400004 fractional cumulative yields. 2168600400005 INC-SOURCE (REAC) Triga research reactor of Mainz (3. x 10**10 2168600400006 thermal neutrons per cm2 and sec.) 2168600400007 INC-SPECT Thermal Maxwellian flux for U-235 2168600400008 HISTORY (20120708T) SD: Subent was added from Entry 20711. 2168600400009 ENDBIB 7 0 2168600400010 COMMON 1 3 2168600400011 EN-DUMMY 2168600400012 EV 2168600400013 2.5300E-02 2168600400014 ENDCOMMON 3 0 2168600400015 DATA 4 2 2168600400016 ELEMENT MASS DATA DATA-ERR 2168600400017 NO-DIM NO-DIM NO-DIM NO-DIM 2168600400018 5.4000E+01 1.3900E+02 8.1000E-01 4.0000E-02 2168600400019 5.4000E+01 1.4000E+02 5.8000E-01 1.0000E-02 2168600400020 ENDDATA 4 0 2168600400021 ENDSUBENT 20 0 2168600499999 ENDENTRY 4 0 2168699999999