ENTRY 21827 19830525 00002182700000001 SUBENT 21827001 19830525 00002182700100001 BIB 11 16 2182700100002 INSTITUTE (2UK NPL) 2182700100003 REFERENCE (J,JP/G,7,4,529,8104) MAIN REFERENCE. 2182700100004 (P,NEANDC(E)-212,8,87,8003) 2182700100005 AUTHOR (T.B.RYVES,P.KOLKOWSKI) 2182700100006 TITLE -THE NB(N,2N) , NB(N,ALPHA) AND NB(N,N') CROSS 2182700100007 SECTIONS AT 14 MEV. 2182700100008 FACILITY .ACCELERATOR 'SAMES'. 2182700100009 INC-SOURCE (D-T ) 140 KEV NEUTRONS ON A SOLID TI-T TARGET. 2182700100010 METHOD (ACTIV) ACTIVATION TECHNIQUES. 2182700100011 DETECTOR (GELI ) 2182700100012 (LONGC) NEUTRON FLUX MONITOR. 2182700100013 COMMENT .SUBWORKS 2 AND 3 SUPERSEDE PRELIMINARY DATA WHICH 2182700100014 WAS COMPILED AS EXFOR SUBWORKS 21627003 AND 21627004. 2182700100015 STATUS .DATA TAKEN FROM MAIN REFERENCE. 2182700100016 HISTORY (830314C) A.P.T. 2182700100017 (830322E) 2182700100018 ENDBIB 16 0 2182700100019 NOCOMMON 0 0 2182700100020 ENDSUBENT 19 0 2182700199999 SUBENT 21827002 19830525 00002182700200001 BIB 8 35 2182700200002 REACTION (41-NB-93(N,2N)41-NB-92-M,,SIG) 2182700200003 SAMPLE .NIOBIUM FOILS OF DIAMETER 2.54 CM AND WEIGHT108 GRAM 2182700200004 SANDWICHED BETWEEN FE FOILS OF THE SAME DIAMETER AND 2182700200005 WEIGHT 380 MILLI-G. 2182700200006 DECAY-DATA (41-NB-92-M,10.15D,DG) 2182700200007 DATA TAKEN FROM D.C.KOCHER+ NUCLEAR DATA SHEETS, 2182700200008 VOL. 7 PAGE 299 (1972) 2182700200009 MONITOR (26-FE-56(N,P)25-MN-56,,SIG) 2182700200010 VALUE TAKEN FROM T.B.RYVES+ PROC.INT.CONF. ON NUCLEAR 2182700200011 CROSS SECTIONS FOR TECHNOLOGY, KNOXVILLE, PAGE 980 2182700200012 (1979) 2182700200013 STATUS .TABLE 2 OF THE MAIN REFERENCE. 2182700200014 HISTORY (830314C) A.P.T. 2182700200015 (830322E) 2182700200016 CORRECTION .NO CORRECTION WAS APPLIED FOR THE ACTIVATION EFFECTS 2182700200017 OF SECONDARY NEUTRONS FROM THE NB FOIL OR TARGET ON 2182700200018 THE FE MONITOR FOILS. THESE NEUTRONS ARE RELATIVELY 2182700200019 SMALL IN NUMBER AND ARE MOSTLY BELOW THE FE-56(N,P) 2182700200020 THRESHOLD OF 6 MEV. 2182700200021 .THE AVERAGE NEUTRON FLUX DENSITY DERIVED FROM THE 2182700200022 TWO FE MONITOR FOILS CORRESPONDED TO THE VALUE IN THE 2182700200023 NB FOIL. THIS ELIMINATED THE NECESSITY TO MEASURE 2182700200024 ACCURATELY DISTANCES BETWEEN FOILS AND NEUTRON SOURCE 2182700200025 ERR-ANALYS (ERR-T) TOTAL ERROR,COMPOSED OF - 2182700200026 (ERR-1) ERROR IN INCIDENT NEUTRON ENERGY 2182700200027 (ERR-2) ERROR IN MONITOR CROSS SECTION 2182700200028 (ERR-3) ERROR IN HALF-LIFE 2182700200029 (ERR-4) ERROR IN GAMMA COUNTING 2182700200030 (ERR-5) ERROR IN OBSERVED GAMMA RAY INTENSITY PER 2182700200031 DISINTEGRATION, INCLUDING DECAY SCHEME AND 2182700200032 INTERNAL CONVERSION CONTRIBUTIONS. 2182700200033 (ERR-6) ERROR IN BETA COUNTING 2182700200034 (ERR-7) ERROR IN GAMMA ABSORPTION 2182700200035 (ERR-S) STATISTICAL ERROR ARISING FROM 12 MEASUREMENTS 2182700200036 OF THE NB/FE COUNT RATIO 2182700200037 ENDBIB 35 0 2182700200038 COMMON 8 6 2182700200039 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 2182700200040 ERR-7 ERR-S 2182700200041 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2182700200042 PER-CENT PER-CENT 2182700200043 3.0000E-01 9.0000E-01 3.0000E-01 2.0000E+00 1.0000E+00 5.0000E-012182700200044 3.0000E-01 3.0000E-01 2182700200045 ENDCOMMON 6 0 2182700200046 DATA 6 1 2182700200047 EN EN-ERR DATA ERR-T MONIT MONIT-ERR 2182700200048 MEV MEV MB MB MB MB 2182700200049 1.4680E+01 3.0000E-02 4.5300E+02 1.1000E+01 1.0990E+02 1.0000E+002182700200050 ENDDATA 3 0 2182700200051 ENDSUBENT 50 0 2182700299999 SUBENT 21827003 19830525 00002182700300001 BIB 8 35 2182700300002 REACTION (41-NB-93(N,A)39-Y-90-M,,SIG) 2182700300003 SAMPLE .NIOBIUM FOILS OF DIAMETER 2.54 CM AND WEIGHT108 GRAM 2182700300004 SANDWICHED BETWEEN FE FOILS OF THE SAME DIAMETER AND 2182700300005 WEIGHT 380 MILLI-G. 2182700300006 DECAY-DATA (39-Y-90-M,3.19HR,DG) 2182700300007 DATA TAKEN FROM D.C.KOCHER+ NUCLEAR DATA SHEETS, 2182700300008 VOL. 7 PAGE 299 (1972) 2182700300009 MONITOR (26-FE-56(N,P)25-MN-56,,SIG) 2182700300010 VALUE TAKEN FROM T.B.RYVES+ PROC.INT.CONF. ON NUCLEAR 2182700300011 CROSS SECTIONS FOR TECHNOLOGY, KNOXVILLE, PAGE 980 2182700300012 (1979) 2182700300013 STATUS .TABLE 2 OF THE MAIN REFERENCE. 2182700300014 HISTORY (830314C) A.P.T. 2182700300015 (830322E) 2182700300016 CORRECTION .NO CORRECTION WAS APPLIED FOR THE ACTIVATION EFFECTS 2182700300017 OF SECONDARY NEUTRONS FROM THE NB FOIL OR TARGET ON 2182700300018 THE FE MONITOR FOILS. THESE NEUTRONS ARE RELATIVELY 2182700300019 SMALL IN NUMBER AND ARE MOSTLY BELOW THE FE-56(N,P) 2182700300020 THRESHOLD OF 6 MEV. 2182700300021 .THE AVERAGE NEUTRON FLUX DENSITY DERIVED FROM THE 2182700300022 TWO FE MONITOR FOILS CORRESPONDED TO THE VALUE IN THE 2182700300023 NB FOIL. THIS ELIMINATED THE NECESSITY TO MEASURE 2182700300024 ACCURATELY DISTANCES BETWEEN FOILS AND NEUTRON SOURCE 2182700300025 ERR-ANALYS (ERR-T) TOTAL ERROR,COMPOSED OF - 2182700300026 (ERR-1) ERROR IN INCIDENT NEUTRON ENERGY 2182700300027 (ERR-2) ERROR IN MONITOR CROSS SECTION 2182700300028 (ERR-3) ERROR IN HALF-LIFE 2182700300029 (ERR-4) ERROR IN GAMMA COUNTING 2182700300030 (ERR-5) ERROR IN OBSERVED GAMMA RAY INTENSITY PER 2182700300031 DISINTEGRATION, INCLUDING DECAY SCHEME AND 2182700300032 INTERNAL CONVERSION CONTRIBUTIONS. 2182700300033 (ERR-6) ERROR IN BETA COUNTING 2182700300034 (ERR-7) ERROR IN GAMMA ABSORPTION 2182700300035 (ERR-S) STATISTICAL ERROR ARISING FROM 12 MEASUREMENTS 2182700300036 OF THE NB/FE COUNT RATIO 2182700300037 ENDBIB 35 0 2182700300038 COMMON 8 6 2182700300039 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 2182700300040 ERR-7 ERR-S 2182700300041 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2182700300042 PER-CENT PER-CENT 2182700300043 3.0000E-01 9.0000E-01 3.0000E-01 2.0000E+00 2.0000E+00 5.0000E-012182700300044 5.0000E-01 1.0000E+00 2182700300045 ENDCOMMON 6 0 2182700300046 DATA 6 1 2182700300047 EN EN-ERR DATA ERR-T MONIT MONIT-ERR 2182700300048 MEV MEV MB MB MB MB 2182700300049 1.4680E+01 3.0000E-02 5.5600E+00 1.8000E-01 1.0990E+02 1.0000E+002182700300050 ENDDATA 3 0 2182700300051 ENDSUBENT 50 0 2182700399999 SUBENT 21827004 19830525 00002182700400001 BIB 9 32 2182700400002 REACTION (41-NB-93(N,INL)41-NB-93-M,,SIG) 2182700400003 SAMPLE .THIN FOILS OF DIAMETER 2.54 CM AND WEIGHT 2182700400004 200 MILLI-G IN CONTACT WITH THE AL BACKING OF THE 2182700400005 TI-T TARGET. 2182700400006 DECAY-DATA (41-NB-93-M,16.0YR,DG) 2182700400007 DATA TAKEN FROM PRIVATE COMMUNICATIONS. 2182700400008 MONITOR (41-NB-93(N,2N)41-NB-92-M,,SIG) 2182700400009 DATA TAKEN FROM THIS WORK, SUBWORK 2. 2182700400010 DECAY-MON (41-NB-92-M,10.15D,DG) 2182700400011 DATA TAKEN FROM D.C.KOCHER+ NUCLEAR DATA SHEETS, 2182700400012 VOL. 7 PAGE 299 (1972) 2182700400013 STATUS .TABLE 2 OF THE MAIN REFERENCE. 2182700400014 HISTORY (830314C) A.P.T. 2182700400015 (830322E) 2182700400016 CORRECTION .DIFFERENT ABSORPTION IN THE FOILS OF THE TWO 2182700400017 X-RAYS USED TO MEASURE THE ACTIVITY OF NB-92-M 2182700400018 AND NB-93-M. 2182700400019 .LOW ENERGY NEUTRONS SCATTERED FROM THE TARGET 2182700400020 AND THE FOIL ITSELF. 2182700400021 ERR-ANALYS (ERR-T) TOTAL ERROR,COMPOSED OF - 2182700400022 (ERR-1) ERROR IN SCATTERED NEUTRON CORRECTION 2182700400023 (ERR-2) ERROR IN MONITOR REACTION. 2182700400024 (ERR-3) ERROR IN HALF LIFE FOR NB-93-M. 2182700400025 (ERR-4) ERROR IN GAMMA AND X-RAY COUNTING FOR 2182700400026 NB-92-M. 2182700400027 ERROR IN OBSERVED GAMMA RAY INTENSITY PER 2182700400028 DISINTEGRATION, INCLUDING DECAY SCHEME AND 2182700400029 INTERNAL CONVERSION CONTRIBUTIONS - 2182700400030 (ERR-5) - FOR NB-92-M 2182700400031 (ERR-6) - FOR NB-93-M. 2182700400032 (ERR-S) STATISTICAL ERROR ARISING FROM 8 2182700400033 MEASUREMENTS OF THE NB/NB COUNT RATIO 2182700400034 ENDBIB 32 0 2182700400035 COMMON 7 6 2182700400036 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 2182700400037 ERR-S 2182700400038 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2182700400039 PER-CENT 2182700400040 5.0000E+00 2.5000E+00 2.5000E+00 1.0000E+00 4.0000E+00 3.5000E+002182700400041 1.1000E+00 2182700400042 ENDCOMMON 6 0 2182700400043 DATA 6 1 2182700400044 EN EN-ERR DATA ERR-T MONIT MONIT-ERR 2182700400045 MEV MEV MB MB MB MB 2182700400046 1.4300E+01 1.0000E-01 3.6500E+01 3.0000E+00 4.5300E+02 1.1000E+012182700400047 ENDDATA 3 0 2182700400048 ENDSUBENT 47 0 2182700499999 ENDENTRY 4 0 2182799999999