ENTRY 20824 19840208 00002082400000001 SUBENT 20824001 19840208 00002082400100001 BIB 15 35 2082400100002 INSTITUTE (2FR ILL) EXPERIMENTAL SITE. 2082400100003 (2FR LYO) A.E. 2082400100004 (2BLGMOL) C.W. 2082400100005 (2BLGGHT) 2082400100006 REFERENCE (J,NP/A,285,32,7707) FINAL VALUES IN TEXT. 2082400100007 (R,BLG-514,7606) 2082400100008 (P,BLG-520,77) PROG.REP.. 2082400100009 AUTHOR (C.WAGEMANS,P.D'HONDT,A.J.DERUYTTER,M.ASGHAR, 2082400100010 A.EMSALLEM) 2082400100011 TITLE -STUDY OF SOME CHARACTERISTICS OF THE THERMAL NEUTRON 2082400100012 INDUCED SUB-BARRIER FISSION OF PA-231, TH-232 AND 2082400100013 NP-237 -. 2082400100014 FACILITY (REAC ) ILL HIGH FLUX REACTOR. 2082400100015 INC-SOURCE (THCOL) 10+9 NEUTRONS/(CM+2,SEC). 2082400100016 AT END OF 87 METER CURVED NEUTRON GUIDE TUBE. 2082400100017 INC-SPECT LESS THAN 10-4PC HIGH 2082400100018 ENERGY CONTAMINATION. 2082400100019 DETECTOR (SOLST) SI-AU SURFACE BARRIER DETECTOR. 2082400100020 AREA 450 MM*2, ACTIVE DEPTH OF 100 AND 250 MICR-M. 2082400100021 MONITOR (92-U-235(N,F),,SIG,,MXW) AS UF4 EVAPORATED ONTO AN 2082400100022 ALUMINIUM BACKING. VALUE TAKEN AS 587.6 B. 2082400100023 MONIT-REF (,A.DERUYTTER+,J,JNE,27,645,73) 2082400100024 PART-DET (FF ) FISSION FRAGMENTS. 2082400100025 (A ) LONG RANGE ALPHAS. 2082400100026 COMMENT .THEORETICAL CALCULATIONS CARRIED OUT WITH RESPECT TO 2082400100027 BOTH SINGLE AND DOUBLE HUMP BARRIER THEORY FOR THE 2082400100028 X-SEC. AND ALSO FOR TERNARY FISSION ESTIMATES AND 2082400100029 KINETIC ENERGY DISTRIBUTION OF FISSION FRAGMENTS 2082400100030 (COMPILER). 2082400100031 STATUS .TEXT AND TABLES OF NP/A,285,32. 2082400100032 HISTORY (790212C) WWO. 2082400100033 (790306E) 2082400100034 (800806A) FINAL VALUES, SUBWORKS ADDED. 2082400100035 (800808E) 2082400100036 CORRECTION .BACKGROUND. 2082400100037 ENDBIB 35 0 2082400100038 COMMON 2 3 2082400100039 EN-DUMMY MONIT 2082400100040 EV B 2082400100041 2.5300E-02 5.8760E+02 2082400100042 ENDCOMMON 3 0 2082400100043 ENDSUBENT 42 0 2082400199999 SUBENT 20824002 19840208 00002082400200001 BIB 5 10 2082400200002 REACTION (91-PA-231(N,F),,SIG,,MXW) 2082400200003 SAMPLE .PA2-O5 ULTRA PURE ELECTRODEPOSITED AS 360MICROG/CM+2. 2082400200004 STATUS ,TEXT, PAGE 37, NP/A,285,32. 2082400200005 HISTORY (790212C) WWO. 2082400200006 (790306E) 2082400200007 (800806A) DATA REVISED. 2082400200008 (800808E) 2082400200009 ERR-ANALYS .UNCERTAINTY MAINLY FROM EXTRAPOLATION OF MEASURED 2082400200010 FISSION FRAGMENT ENERGY SPECTRUM TO LOW ENERGIES 2082400200011 AND FROM THE WEIGHT OF THE PA LAYER. 2082400200012 ENDBIB 10 0 2082400200013 NOCOMMON 0 0 2082400200014 DATA 2 1 2082400200015 DATA DATA-ERR 2082400200016 MB MB 2082400200017 1.9000E+01 4.0000E+00 2082400200018 ENDDATA 3 0 2082400200019 ENDSUBENT 18 0 2082400299999 SUBENT 20824003 19840208 00002082400300001 BIB 5 10 2082400300002 REACTION (93-NP-237(N,F),,SIG,,MXW) 2082400300003 SAMPLE .NP-HYDROXIDE ELECTRODEPOSITED ULTRA PURE WITH LESS 2082400300004 THAN 4PPM 238-PU AS 43 AND 55 MICROG/CM+2. 2082400300005 STATUS .TEXT, PAGE 37, NP/A,285,32. 2082400300006 HISTORY (790212C) WWO. 2082400300007 (790306E) 2082400300008 (800806A) MINOR CORRECTIONS. 2082400300009 (800808E) 2082400300010 ERR-ANALYS .UNCERTAINTY MAINLY FROM THE ASSAY OF THE NP HYDROXIDE 2082400300011 LAYERS. 2082400300012 ENDBIB 10 0 2082400300013 NOCOMMON 0 0 2082400300014 DATA 2 1 2082400300015 DATA DATA-ERR 2082400300016 MB MB 2082400300017 2.0000E+01 4.0000E+00 2082400300018 ENDDATA 3 0 2082400300019 ENDSUBENT 18 0 2082400399999 SUBENT 20824004 19840208 00002082400400001 BIB 5 9 2082400400002 REACTION (90-TH-232(N,F),,SIG,,MXW) UPPER LIMIT TO CROSS SECT. 2082400400003 SAMPLE .THIN, 75 MICRO-GM/CM*2, THF4 LAYER ON A MYLAR BACKING 2082400400004 THERE WAS SOME U-235 CONTAMINATION ON THE REAR SIDE 2082400400005 OF THE MYLAR WHICH GAVE ENERGY SEPERATED PEAKS IN 2082400400006 THE FISSION FRAGMENT ENERGY SPECTRUM. 2082400400007 STATUS .TEXT,PAGE 38, NP/A,285,32. 2082400400008 HISTORY (800806C) 2082400400009 (800808E) 2082400400010 ERR-ANALYS .UPPER LIMIT ONLY. 2082400400011 ENDBIB 9 0 2082400400012 NOCOMMON 0 0 2082400400013 DATA 1 1 2082400400014 DATA-MAX 2082400400015 MB 2082400400016 2.5000E-03 2082400400017 ENDDATA 3 0 2082400400018 ENDSUBENT 17 0 2082400499999 SUBENT 20824005 19840208 00002082400500001 BIB 5 10 2082400500002 REACTION (93-NP-237(N,F),,AKE,FF) FISSION FRAGMENT TOTAL AVERAG 2082400500003 KINETIC ENERGY. 2082400500004 SAMPLE .NP HYDROXIDE ELECTRODEPOSITED ONTO ALUMINIUM OR 2082400500005 VYNS BACKING. 2082400500006 STATUS .TEXT, PAGE 40, NP/A,285,32. 2082400500007 HISTORY (800806C) 2082400500008 (800808E) 2082400500009 ERR-ANALYS .STATISTICAL ERROR, ERROR IN CALIBRATION AND ERROR 2082400500010 FROM CORRECTION FOR ENERGY LOSS IN BACKING AND SAMPLE 2082400500011 LAYER. 2082400500012 ENDBIB 10 0 2082400500013 NOCOMMON 0 0 2082400500014 DATA 2 1 2082400500015 DATA DATA-ERR 2082400500016 MEV MEV 2082400500017 1.7280E+02 2.5000E+00 2082400500018 ENDDATA 3 0 2082400500019 ENDSUBENT 18 0 2082400599999 SUBENT 20824006 19840208 00002082400600001 BIB 5 8 2082400600002 REACTION (91-PA-231(N,F)2-HE-4,TER,FY,,MXW) YIELD OF LONG 2082400600003 RANGE ALPHAS. 2082400600004 SAMPLE .THIN LAYER OF PA-231 AS PA2O5 ON A PLATINUM BACKING. 2082400600005 STATUS .TEXT,PAGE 41. 2082400600006 HISTORY (800806C) 2082400600007 (800808E) 2082400600008 ERR-ANALYS .QUOTED ERROR IS ONLY FROM THE MEASURED RATIO OF 2082400600009 LONG RANGE ALPHA EMISSION TO BINARY FISSION. 2082400600010 ENDBIB 8 0 2082400600011 NOCOMMON 0 0 2082400600012 DATA 2 1 2082400600013 DATA DATA-ERR 2082400600014 PC/FIS PC/FIS 2082400600015 1.9400E-01 1.7000E-02 2082400600016 ENDDATA 3 0 2082400600017 ENDSUBENT 16 0 2082400699999 SUBENT 20824007 19840208 00002082400700001 BIB 6 11 2082400700002 REACTION (93-NP-237(N,F)2-HE-4,TER,FY,,MXW) YIELD OF LONG 2082400700003 RANGE ALPHAS. 2082400700004 SAMPLE .THIN LAYER OF NP HYDROXIDE, ELECTRODEPOSITED ON 2082400700005 AN ALUMINIUM BACKING. 2082400700006 METHOD .LONG RANGE ALPHAS DETECED THROUGH 20 MICRO-M OF 2082400700007 ALUMINIUM. 2082400700008 STATUS .TEXT, PAGE 41. 2082400700009 HISTORY (800806C) 2082400700010 (800808E) 2082400700011 ERR-ANALYS .QUOTED ERROR IS ONLY FROM THE RATIO OF LONG RANGE 2082400700012 ALPHA EMISSION TO BINARY FISSION. 2082400700013 ENDBIB 11 0 2082400700014 NOCOMMON 0 0 2082400700015 DATA 2 1 2082400700016 DATA DATA-ERR 2082400700017 PC/FIS PC/FIS 2082400700018 1.6700E-01 1.1000E-02 2082400700019 ENDDATA 3 0 2082400700020 ENDSUBENT 19 0 2082400799999 ENDENTRY 7 0 2082499999999