ENTRY 21831 19860206 00002183100000001 SUBENT 21831001 19860206 00002183100100001 BIB 16 101 2183100100002 INSTITUTE (2GERKFK) 2183100100003 REFERENCE (J,NSE,84,234,8301) MAIN REFERENCE. 2183100100004 (R,KFK-3412,8211) 2183100100005 (P,NEANDC(E)-222,5,8107) 2183100100006 AUTHOR (F.KAEPPLER,K.WISSHAK,L.D.HONG) 2183100100007 TITLE -NEUTRON CAPTURE RESONANCES IN FE-56 AND FE-58 2183100100008 IN THE ENERGY RANGE FROM 10 TO 100 KEV. 2183100100009 FACILITY (VDG ) 3 MV VAN DE GRAAFF. 700 PICO-SEC PULSE 2183100100010 WIDTH, 1 MHZ REPETITION RATE, 5 MICRO-AMP 2183100100011 BEAM INTENSITY. 2183100100012 INC-SOURCE (P-LI7) 2183100100013 SAMPLE .ALL SAMPLES WERE CONTAINED IN IDENTICAL 0.2 MILLI-M 2183100100014 THICK ALUMINIUM CANS. 2183100100015 FE-56 NATURAL METALLIC FE. WEIGHT 9.901 G, 2183100100016 THICKNESS 8.495E-03 ATOMS/BARN. 2183100100017 FE-58 ENRICHED FE2-O3 OXIDE WITH THE FOLLOWING 2183100100018 ISOTOPIC COMPOSITION - 1.14 PER CENT FE-54 2183100100019 23.74 PER CENT FE-56, 1.86 PER CENT FE-57 2183100100020 73.26 PER CENT FE-58. WEIGHT 19.619 G, 2183100100021 THICKNESS 1.155E-02 ATOMS/BARN. 2183100100022 AU-197 NATURAL METALLIC AU. WEIGHT 23.525 G, 2183100100023 THICKNESS 5.722E-03 ATOMS/BARN. 2183100100024 C NATURAL GRAPHITE. WEIGHT 15.034 G, 2183100100025 THICKNESS 5.997E-02 ATOMS/BARN. 2183100100026 METHOD (TOF ) TIME OF FLIGHT PATH LENGTH 60.89 CM. 2183100100027 DETECTOR (SCIN ) TWO CYLINDRICAL BENZENE LIQUID SCINTILLATORS 2183100100028 EACH CONTAINING 1 LITRE NE 230, LOCATED AT 2183100100029 90 DEGREES TO THE BEAM AXIS AT A DISTANCE OF 2183100100030 4 CM FROM THE SAMPLE. 2183100100031 ANALYSIS (SHAPE) 2183100100032 RESONANCE PARAMETERS WERE EXTRACTED FROM THE CAPTURE 2183100100033 YIELDS USING THE CODE 'FANAC' DESCRIBED IN 2183100100034 F.H.FROEHNER, KFK-2145, KERNFORSCHUNGSZENTRUM 2183100100035 KARLSRUHE (1977) 2183100100036 .ALL THE KNOWN RESONANCES OF ALL THE IRON ISOTOPES, 2183100100037 TOGETHER WITH THOSE FOR OXYGEN IN THE CASE OF FE-58, 2183100100038 WERE INCLUDED IN THE FIT. 2183100100039 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 2183100100040 THE NORMALISATION WAS PERFORMED IN THREE WAYS - 2183100100041 1) THE EXPERIMENTAL TOF SPECTRUM OF THE GOLD 2183100100042 SAMPLE WAS SMOOTHED STRONGLY, AND THE SMOOTH 2183100100043 CROSS SECTION FROM ENDF/B-IV WAS TAKEN AS A 2183100100044 REFERENCE. 2183100100045 2) THE EXPERIMENTAL TOF SPECTRUM OF THE GOLD 2183100100046 SAMPLE WAS SMOOTHED SLIGHTLY AND THE CROSS 2183100100047 SECTION WAS TAKEN FROM ENDF/B-V, AVERAGED 2183100100048 OVER 1 KEV INTERVALS. 2183100100049 3) THE TOF SPECTRUM OF THE GOLD SAMPLE WAS USED 2183100100050 WITHOUT SMOOTHING AND THE CROSS SECTION FROM 2183100100051 FROM ENDF/B-V WAS TAKEN WITH FULL RESOLUTION. 2183100100052 ASSUMED (ASSUM1,26-FE-54(N,EL),,STF) S-WAVE STRENGTH 2183100100053 (ASSUM2,26-FE-56(N,EL),,STF) S-WAVE STRENGTH 2183100100054 (ASSUM3,26-FE-57(N,EL),,STF) S-WAVE STRENGTH 2183100100055 (ASSUM4,26-FE-58(N,EL),,STF) S-WAVE STRENGTH 2183100100056 THE ABOVE AND THE FOLLOWING WERE USED AS FIXED 2183100100057 PARAMETERS IN THE 'FANAC' FITS - 2183100100058 ISOTOPE S-WAVE RADIUS P-WAVE RADIUS 2183100100059 FM FM 2183100100060 FE-54 4.6 5.3 2183100100061 FE-56 6.1 5.4 2183100100062 FE-57 5.5 5.4 2183100100063 FE-58 6.1 5.4 2183100100064 THESE ASSUMED DATA WERE TAKEN FROM THE KEDAK-3 2183100100065 EVALUATION (1977) AND FROM F.H.FROEHNER ET AL., 2183100100066 KFK-2899 KERNFORSCHUNGSZENTRUM KARLSRUHE (1979). 2183100100067 CORRECTION .THE TOF SPECTRA WERE WEIGHTED TO TAKE INTO ACCOUNT 2183100100068 GEOMETRICAL EFFECTS. 2183100100069 .BACKGROUND WAS DETERMINED FROM TOF SPECTRA OF THE 2183100100070 CARBON SAMPLE, AND AN EMPTY SAMPLE CAN. 2183100100071 .CORRECTIONS FOR MULTIPLE SCATTERING AND RESONANCE 2183100100072 SELF-SHIELDING IN THE GOLD MONITOR SAMPLE WERE 2183100100073 CALCULATED USING THE CODE 'SESH', DESCRIBED IN 2183100100074 F.H.FROEHNER, GA-8380, GULF GENERAL ATOMIC 2183100100075 COMPANY (1968). 2183100100076 .GAMMA RAY SELF ABSORPTION IN THE GOLD MONITOR 2183100100077 SAMPLE. 2183100100078 ERR-ANALYS (ERR-T) TOTAL ERROR. 2183100100079 (ERR-S) STATISTICAL ERROR. 2183100100080 (ERR-1) SYSTEMATIC ERROR, CONSISTING OF UNCERTAINTIES 2183100100081 IN THE FOLLOWING - 2183100100082 BACKGROUND 2183100100083 TOF SPECTRA WEIGHTING FUNCTION 2183100100084 STRUCTURE OF THE GOLD CROSS SECTION 2183100100085 ISOTOPIC COMPOSITION 2183100100086 TOGETHER WITH THE FOLLOWING SYSTEMATIC ERRORS 2183100100087 COMMON TO ALL RESONANCES - 2183100100088 (ERR-2) ERROR IN GOLD CAPTURE CROSS SECTION 2183100100089 (ERR-3) ERROR IN GAMMA RAY SELF ABSORPTION CORRECTION 2183100100090 (ERR-4) ERROR IN MULTIPLE SCATTERING AND 2183100100091 SELF SHIELDING CORRECTION 2183100100092 (ERR-5) ERROR DUE TO PILE UP EVENTS 2183100100093 (ERR-6) ERROR DUE TO THRESHOLD IN GAMMA DETECTOR 2183100100094 (ERR-7) ERROR IN NEUTRON FLUX 2183100100095 (ERR-8) ERROR IN 'FANAC' FIT. 2183100100096 STATUS .DATA TAKEN FROM KFK - REPORT. 2183100100097 HISTORY (830216C) A.P.T. 2183100100098 (830322E) 2183100100099 (840802U) MAIN REFERENCE ADDED. 2183100100100 (850419E) 2183100100101 (850821U)HH 2183100100102 (860106E) 2183100100103 ENDBIB 101 0 2183100100104 COMMON 11 6 2183100100105 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 ERR-7 2183100100106 ERR-8 ASSUM1 ASSUM2 ASSUM3 ASSUM4 2183100100107 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2183100100108 PER-CENT NO-DIM NO-DIM NO-DIM NO-DIM 2183100100109 2.5000E+00 1.4000E+00 1.0000E+00 2.0000E+00 1.0000E+00 1.0000E+002183100100110 2.0000E+00 7.6000E-04 2.5000E-04 4.3000E-04 4.3000E-04 2183100100111 ENDCOMMON 6 0 2183100100112 ENDSUBENT 111 0 2183100199999 SUBENT 21831002 19830322 00002183100200001 BIB 5 16 2183100200002 REACTION 1(26-FE-56(N,0),,EN) 2183100200003 2(26-FE-56(N,G),,ARE,,FCT) 2183100200004 THE FACTOR IS 1/(2*(PI**2)*(LAMBDA**2)) 2183100200005 3(26-FE-56(N,G),,WID) 2183100200006 4(26-FE-56(N,EL),,WID) 2183100200007 ASSUMED (ASSUM,26-FE-56(N,EL),,WID) 2183100200008 DATA TAKEN FROM F.H.FROEHNER, KFK-2145 2183100200009 KERNFORSCHUNGSZENTRUM KARLRUHE (1977) 2183100200010 FLAG (1.) UNRESOLVED DOUBLET. 2183100200011 (2.) THE RESONANCES AT 96.2 AND 96.5 EV ARE AN 2183100200012 UNRESOLVED DOUBLET. THE QUOTED PARAMETERS 2183100200013 ARE IDENTICAL BECAUSE THEY REFER TO BOTH 2183100200014 RESONANCES TOGETHER. 2183100200015 STATUS .TABLE V OF THE KFK - REPORT . 2183100200016 HISTORY (830216C) A.P.T. 2183100200017 (830322E) 2183100200018 ENDBIB 16 0 2183100200019 NOCOMMON 0 0 2183100200020 DATA 9 22 2183100200021 DATA 1DATA 2DATA 3DATA 4ASSUM ERR-T 2183100200022 ERR-S ERR-1 FLAG 2183100200023 KEV EV EV KEV KEV PER-CENT 2183100200024 PER-CENT PER-CENT NO-DIM 2183100200025 2.2800E+01 1.7800E-01 9.0000E+002183100200026 6.4000E+00 6.4000E+00 2183100200027 2.7800E+01 1.0430E+00 1.4500E+00 8.0000E+002183100200028 6.4000E+00 4.8000E+00 2183100200029 3.4200E+01 5.9800E-01 7.2000E+002183100200030 6.6000E+00 3.0000E+00 2183100200031 3.6700E+01 2.5700E-01 8.0000E+002183100200032 5.0000E+00 6.2000E+00 2183100200033 3.8400E+01 3.5900E-01 7.2000E+002183100200034 5.1000E+00 5.1000E+00 2183100200035 4.6000E+01 4.5600E-01 6.6000E+002183100200036 4.9000E+00 4.4000E+00 2183100200037 5.2100E+01 7.2400E-01 7.5000E+002183100200038 6.5000E+00 3.8000E+00 2183100200039 5.3500E+01 3.7800E-01 8.8000E+002183100200040 6.1000E+00 6.3000E+00 2183100200041 5.9200E+01 8.4100E-01 6.7000E+002183100200042 5.6000E+00 3.6000E+00 2183100200043 6.3400E+01 5.3600E-01 7.5000E+002183100200044 5.8000E+00 4.8000E+00 2183100200045 7.2900E+01 6.0600E-01 9.4000E+002183100200046 5.7000E+00 7.5000E+00 1.0000E+00 2183100200047 7.3900E+01 8.6200E-01 5.3000E-01 8.8000E+002183100200048 5.4000E+00 7.0000E+00 1.0000E+00 2183100200049 7.7000E+01 2.9400E-01 1.5100E+012183100200050 6.5000E+00 1.3700E+01 2183100200051 8.0800E+01 1.8080E+00 7.3000E+002183100200052 5.4000E+00 2.7000E+00 2183100200053 8.3500E+01 5.3700E-01 1.0500E+00 1.6800E+012183100200054 1.0800E+01 1.2800E+01 2183100200055 9.0300E+01 8.4700E-01 8.6000E+002183100200056 6.4000E+00 5.8000E+00 2183100200057 9.2600E+01 1.7300E+00 5.9000E+002183100200058 4.9000E+00 3.3000E+00 2183100200059 9.6200E+01 2.2700E+00 1.1000E+012183100200060 1.0000E+01 4.7000E+00 2.0000E+00 2183100200061 9.6500E+01 2.2700E+00 1.1000E+012183100200062 1.0000E+01 4.7000E+00 2183100200063 1.0270E+02 1.4800E+00 6.2000E+002183100200064 4.6000E+00 4.2000E+00 2183100200065 1.0580E+02 1.5700E+00 6.6000E+002183100200066 5.2000E+00 4.1000E+00 2183100200067 1.1260E+02 1.0900E+00 8.1000E+002183100200068 5.4000E+00 6.0000E+00 2183100200069 ENDDATA 48 0 2183100200070 ENDSUBENT 69 0 2183100299999 SUBENT 21831003 19830322 00002183100300001 BIB 5 14 2183100300002 REACTION 1(26-FE-58(N,0),,EN) 2183100300003 2(26-FE-58(N,G),,ARE,,FCT) 2183100300004 THE FACTOR IS 1/(2*(PI**2)*(LAMBDA**2)) 2183100300005 3(26-FE-58(N,G),,WID) 2183100300006 4(26-FE-58(N,EL),,WID) 2183100300007 ASSUMED (ASSUM,26-FE-58(N,EL),,WID) 2183100300008 DATA TAKEN FROM B.J.ALLEN ET AL., 2183100300009 J.PHYS.G VOL 6 PAGE 318 (1980). 2183100300010 COMMENT .THE ONLY ERROR QUOTED FOR THE RESONANCE AT 2183100300011 93.0 EV IS THE TOTAL ERROR, APPROXIMATELY 2183100300012 20 PER CENT. 2183100300013 STATUS .TABLE VI OF THE KFK - REPORT. 2183100300014 HISTORY (830216C) A.P.T. 2183100300015 (830322E) 2183100300016 ENDBIB 14 0 2183100300017 NOCOMMON 0 0 2183100300018 DATA 8 21 2183100300019 DATA 1DATA 2DATA 3DATA 4ASSUM ERR-T 2183100300020 ERR-S ERR-1 2183100300021 KEV EV EV KEV KEV PER-CENT 2183100300022 PER-CENT PER-CENT 2183100300023 1.0400E+01 7.9700E-01 2.7000E-01 1.1700E+012183100300024 1.0700E+01 4.7000E+00 2183100300025 1.9300E+01 2.3900E-01 1.0100E+012183100300026 9.4000E+00 3.8000E+00 2183100300027 2.6100E+01 1.9100E-01 8.5000E+002183100300028 7.1000E+00 4.7000E+00 2183100300029 2.9300E+01 1.7700E-01 1.0100E+012183100300030 8.6000E+00 5.4000E+00 2183100300031 3.4600E+01 2.9600E-01 1.0900E+012183100300032 1.0200E+01 3.9000E+00 2183100300033 3.7600E+01 2.5000E-01 6.8000E+002183100300034 5.1000E+00 4.5000E+00 2183100300035 4.1900E+01 4.1400E-01 6.6000E+002183100300036 5.4000E+00 3.8000E+00 2183100300037 4.3300E+01 1.2000E+00 4.9000E+00 8.7000E+002183100300038 7.7000E+00 4.0000E+00 2183100300039 4.5800E+01 5.6900E-01 7.3000E+002183100300040 6.4000E+00 3.5000E+00 2183100300041 5.3500E+01 5.4000E-02 4.7400E+012183100300042 3.9200E+01 2.6700E+01 2183100300043 5.4500E+01 3.1300E-01 8.6000E+002183100300044 6.5000E+00 5.7000E+00 2183100300045 6.1700E+01 4.7300E-01 7.9000E+002183100300046 5.2000E+00 6.0000E+00 2183100300047 6.6700E+01 4.3600E-01 8.3000E-01 1.4600E+012183100300048 7.0000E+00 1.2800E+01 2183100300049 6.8500E+01 7.3400E-01 5.9000E+002183100300050 5.0000E+00 3.2000E+00 2183100300051 7.3700E+01 7.3300E-01 8.0000E+002183100300052 6.5000E+00 4.6000E+00 2183100300053 7.9200E+01 2.7400E-01 3.0000E+012183100300054 2.7100E+01 1.2800E+01 2183100300055 8.6100E+01 5.0700E-01 1.1900E+012183100300056 8.3000E+00 8.5000E+00 2183100300057 8.8800E+01 1.1570E+00 7.6000E+002183100300058 6.1000E+00 4.5000E+00 2183100300059 9.2500E+01 7.9500E-01 1.2000E+012183100300060 8.1000E+00 8.8000E+00 2183100300061 9.3000E+01 1.0000E+00 8.0000E+00 2.0000E+012183100300062 2183100300063 9.7900E+01 7.3800E-01 2.7800E+012183100300064 1.6800E+01 2.2200E+01 2183100300065 ENDDATA 46 0 2183100300066 ENDSUBENT 65 0 2183100399999 ENDENTRY 3 0 2183199999999