ENTRY 30961 20090915 31413096100000001 SUBENT 30961001 20090915 31413096100100001 BIB 11 44 3096100100002 TITLE Measurement of fission yields far from the center of 3096100100003 isotopic distributions in the thermal neutron fission 3096100100004 of 235U 3096100100005 AUTHOR (M.Shmid) 3096100100006 INSTITUTE (3ISLSOR) 3096100100007 REFERENCE (R,IA-1345,197908) Thesis M. Shmid, in Hebrew 3096100100008 ADD-RES Independent yields are compiled in Exfor30960 3096100100009 COMMENT The Kr and Xe precursors of Rb and Cs isotopes are 3096100100010 retained within the target and decay there. Therefore3096100100011 the yields measured for Rb and Cs isotopes are cumu- 3096100100012 lative. Since independent yields of Rb isotopes below3096100100013 A=93 and of Cs isotopes below A=143 (see Exfor30960) 3096100100014 are a small fraction of their cumulative yields, it 3096100100015 was not possible to calculate them with reasonable 3096100100016 accuracy. Instead, the obtained cumulative yields are3096100100017 presented here. 3096100100018 Comments by compiler: 3096100100019 The independent yields from this experiment and more 3096100100020 details are given in exfor30960. The information on 3096100100021 the cumulative yields is very brief and in Hebrew. It3096100100022 is assumed that the sample and method were the same 3096100100023 as in Exfor30960 and are partly reproduced here. 3096100100024 No information is given on analysis, error analysis and3096100100025 how absolute yields were obtained (monitor). 3096100100026 However, the yields (not the errors]) for Rb-91 and 3096100100027 Cs-139 are identical to literature values shown in 3096100100028 Table 9 of IA-1345. 3096100100029 SAMPLE Composition: U-234 U-235 U-236 U-238 3096100100030 1.0812% 93.336% 0.2027% 5.38% 3096100100031 FACILITY (REAC,3ISLSOR) 4 MW swimming pool reactor 3096100100032 Flux from external beam: 5x10**8 n/cm2/sec 3096100100033 (OLMS,3ISLSOR) On-line isotope separator solis 3096100100034 see: S.Amiel, Arkiv Fysik 36 (1966) 71 3096100100035 METHOD (OLMS).Short delay half times achieved with system: 3096100100036 Rb and Cs Sr Ba 3096100100037 0.270+-0.027 sec 1.4+-0.3 sec 1.0+-0.4 sec 3096100100038 (BSPEC).Beta activity scans at collector over desired 3096100100039 mass region with 300 mu silicon surface barrier 3096100100040 detector to obtain very low gamma-ray background. 3096100100041 STATUS (RIDER) Data corrected by ML from Table 9 of IA-1345 3096100100042 HISTORY (19881017T) From Rider file to exfor90570 3096100100043 (19911107) Converted from Exfor90570 to regular EXFOR 3096100100044 (19920305U).ML: Minor corrections to subentry 1 3096100100045 (20090912A) SD:Updated to new date formats,lower case. 3096100100046 ENDBIB 44 0 3096100100047 COMMON 1 3 3096100100048 EN-DUMMY 3096100100049 EV 3096100100050 0.0253 3096100100051 ENDCOMMON 3 0 3096100100052 ENDSUBENT 51 0 3096100199999 SUBENT 30961002 20090915 31413096100200001 BIB 1 1 3096100200002 REACTION (92-U-235(N,F)ELEM/MASS,CUM,FY,,MXW) 3096100200003 ENDBIB 1 0 3096100200004 NOCOMMON 0 0 3096100200005 DATA 5 9 3096100200006 ELEMENT MASS ISOMER DATA DATA-ERR 3096100200007 NO-DIM NO-DIM NO-DIM PC/FIS PC/FIS 3096100200008 37. 90. 0. 4.44 0.44 3096100200009 37. 91. 5.66 0.57 3096100200010 37. 92. 4.94 0.49 3096100200011 37. 93. 3.96 0.40 3096100200012 55. 139. 6.38 0.64 3096100200013 55. 140. 6.14 0.61 3096100200014 55. 141. 5.95 0.60 3096100200015 55. 142. 2.93 0.29 3096100200016 55. 143. 1.66 0.17 3096100200017 ENDDATA 11 0 3096100200018 ENDSUBENT 17 0 3096100299999 ENDENTRY 2 0 3096199999999