ENTRY 20594 19840409 00002059400000001 SUBENT 20594001 19840409 00002059400100001 BIB 15 47 2059400100002 INSTITUTE (2JPNKTO) 2059400100003 REFERENCE (J,NST,10,(11),668,7311) NUMERICAL VALUE AND 2059400100004 COMPARISONS. 2059400100005 AUTHOR (K.KOBAYASHI,T.HASHIMOTO,I.KIMURA) 2059400100006 TITLE -MEASUREMENT OF AVERAGE CROSS SECTION FOR U233(N, 2059400100007 2N)U232 REACTION- 2059400100008 FACILITY .KYOTO UNIVERSITY REACTOR (KUR) 2059400100009 INC-SOURCE (REAC ) CORE OF THE KUR ,IRRADIATION TIME OF 2059400100010 48 HOURS AT 4000 KW OF REACTOR POWER. 2059400100011 INC-SPECT .ENERGY SPECTRUM OF FAST NEUTRONS ABOVE 1 MEV VERY 2059400100012 CLOSE TO FISSION SPECTRUM. 2059400100013 SAMPLE .PURIFIED SAMPLE OF U233 OBTAINED FROM IRRADIATION 2059400100014 IN THE KUR THERMAL COLUMN OF THORIUM SAMPLES WITH 2059400100015 LATER CHEMICAL SEPARATION. DETAILS IN P.669 OF 2059400100016 NUCL.SCI.TECHN.,10,668(1973). 2059400100017 .CONCENTRATION OF U232 ABOUT 3.E-9. 2059400100018 METHOD (ACTIV) MEASUREMENT OF THE NUMBER OF ATOMS OF 2059400100019 U-233 AND U-232 BY ALPHA-RAY COUNTING BEFORE AND 2059400100020 AFTER IRRADIATION AND MONITORING OF THE MEAN FAST 2059400100021 NEUTRON FLUX. 2059400100022 DETECTOR (SOLST) FOR ALPHA-RAY COUNTING SILICON DETECTOR. 2059400100023 (GELI ) A GE-LI DETECTOR WITH PREVIOUSLY 2059400100024 CALIBRATED EFFICIENCY WAS USED FOR MEASURING THE 2059400100025 ACTIVITIES INDUCED BY NEUTRONS IN SEVERAL SAMPLES 2059400100026 IN ORDER TO DETERMINATE THE AVERAGE FAST NEUTRON 2059400100027 FLUX. SEE STANDARD FOR MORE DETAILS. 2059400100028 MONITOR (28-NI-58(N,P)27-CO-58,,SIG,,FIS) 102. MB 2059400100029 (26-FE-54(N,P)25-MN-54,,SIG,,FIS) 73.3 MB 2059400100030 (22-TI-46(N,P)21-SC-46,,SIG,,FIS) 11.3 MB 2059400100031 .FISSION-SPECTRUM AVERAGE CROSS SECTION VALUES 2059400100032 TAKEN FROM SIMONS,MC.ELROY BNWL-1312 (1970),USED 2059400100033 TO EVALUATE AVERAGE FAST NEUTRON FLUX 2059400100034 COMMENT .RESULT LOWER THAN EVALUATED ENERGY DEPENDENT (N,2N) 2059400100035 CROSS SECTION. 2059400100036 STATUS .NUMERICAL DATA TAKEN FROM REFERENCE 2059400100037 HISTORY (760730C) 2059400100038 (761217E) 2059400100039 (840106U) A.P.T. JAPAN CODE CHANGED TO JPN 2059400100040 STANDARD AND ISO-QUANT CONVERTED TO 2059400100041 MONITOR AND REACTION. 2059400100042 (840106E) 2059400100043 ERR-ANALYS .FAST NEUTRON FLUX UNCERTAINTY = 3 P.C. 2059400100044 .U-233 ALPHA-RAY COUNTING STATISTICS,6 P.C. 2059400100045 .UNCERTAINTIES IN IRRADIATION TIME,HALF-LIVES AND 2059400100046 BRANCHING RATIOS OF ALPHA-DECAY OF U-232 AND U-233, 2059400100047 ABOUT 3 P.C. 2059400100048 .ALL THESE ERRORS WERE ADDED QUADRATICALLY 2059400100049 ENDBIB 47 0 2059400100050 NOCOMMON 0 0 2059400100051 ENDSUBENT 50 0 2059400199999 SUBENT 20594002 19840409 00002059400200001 BIB 2 5 2059400200002 REACTION (92-U-235(N,2N)92-U-234,,SIG,,FIS) 2059400200003 HISTORY (760730C) 2059400200004 (761217E) 2059400200005 (840106U) A.P.T. ISO-QUANT CONVERTED TO REACTION. 2059400200006 (840106E) 2059400200007 ENDBIB 5 0 2059400200008 NOCOMMON 0 0 2059400200009 DATA 3 1 2059400200010 EN-DUMMY DATA DATA-ERR 2059400200011 MEV MB MB 2059400200012 1.5000E+00 4.0800E+00 3.0000E-01 2059400200013 ENDDATA 3 0 2059400200014 ENDSUBENT 13 0 2059400299999 ENDENTRY 2 0 2059499999999