ENTRY            22100   19881216                             00002210000000001 
SUBENT        22100001   19881216                             00002210000100001 
BIB                 15         50                                 2210000100002 
REFERENCE  (J,JP/G,14,77,8801)                                    2210000100003 
TITLE      -SILVER CROSS SECTIONS FOR 14 MEV NEUTRONS.            2210000100004 
AUTHOR     (T.B.RYVES,P.KOLKOWSKI,V.E.LEWIS)                      2210000100005 
INSTITUTE  (2UK NPL)                                              2210000100006 
FACILITY   .NPL SAMES ACCELERATOR. ANALYSED BEAM OF 150 KEV       2210000100007 
            DEUTERONS.                                            2210000100008 
INC-SOURCE (D-T) AN AIR-COOLED TI-T TARGET OF THICKNESS 2 MG/CM2  2210000100009 
            TITANIUM, EVAPORATED ONTO A 0.5 MM THICK VERY PURE    2210000100010 
            ALUMINIUM BACKING, WAS USED TO PRODUCE NEUTRONS OF    2210000100011 
            ABOUT 14 MEV ENERGY.                                  2210000100012 
INC-SPECT  .IN SOME IRRADIATIONS THE SAMPLE WAS PLACED IN CONTACT 2210000100013 
            WITH THE TARGET, RESULTING IN A SKEW NEUTRON ENERGY   2210000100014 
            DISTRIBUTION RANGING FROM 14.0 TO 14.8 MEV, WITH A    2210000100015 
            MEAN ENERGY OF 14.3 MEV. IN OTHER IRRADIATIONS THE    2210000100016 
            SAMPLE WAS PLACED AT A DISTANCE OF 50 MM IN FRONT OF  2210000100017 
            THE TARGET, GIVING A DISTRIBUTION FROM 14.5 TO 14.8   2210000100018 
            MEV WITH A MEAN OF 14.67 MEV.                         2210000100019 
METHOD     (ACTIV) IRRADIATIONS WERE PERFORMED FROM 4 MIN TO 2    2210000100020 
            HOURS.                                                2210000100021 
DETECTOR   (PROPC) A 4-PI-BETA GAS-FLOW PROPORTIONAL COUNTER,     2210000100022 
            EMPLOYING PURE METHANE GAS, WAS USED FOR BETA ACTIVITY2210000100023 
            MEASUREMENTS. THE COUNTING EFFICIENCIES WERE          2210000100024 
            CALCULATED.                                           2210000100025 
           (GELI) A 40 CM3 COAXIAL GE(LI) DETECTOR WAS USED TO    2210000100026 
            MEASURE THE POSITRON ANNIHILATION RADIATION FROM      2210000100027 
            AG-106-G. THE EFFICIENCY OF THIS DETECTOR WAS DETER-  2210000100028 
            MINED WITH A CALIBRATED NA-22 SOURCE.                 2210000100029 
           (LONGC) A LONGCOUNTER WAS USED TO MONITOR THE NEUTRON  2210000100030 
            FLUENCE RATE.                                         2210000100031 
MONITOR    (26-FE-56(N,P)25-MN-56,,SIG)                           2210000100032 
SAMPLE     .THE SAMPLES CONSISTED OF NATURAL SILVER WITH ISOTOPIC 2210000100033 
            COMPOSITION 51.83 PERCENT AG-107 AND 48.17 PERCENT    2210000100034 
            AG-109. THEY WERE SHAPED AS DISCS WITH THICKNESSES    2210000100035 
            VARYING FROM 3 TO 85 MG/CM2 AND DIAMETERS OF 22.0 OR  2210000100036 
            25.4 MM. FOR ABSOLUTE MEASUREMENTS THE SILVER FOIL WAS2210000100037 
            SANDWICHED BETWEEN TWO IRON FOILS OF EQUAL DIAMETER.  2210000100038 
            BOTH METALS HAD A CHEMICAL PURITY OF BETTER THAN      2210000100039 
            99.99 PERCENT.                                        2210000100040 
CORRECTION .THE DATA WERE CORRECTED FOR TIME VARIATIONS OF THE    2210000100041 
            NEUTRON FLUX, DETECTOR EFFICIENCIES, INTERNAL CON-    2210000100042 
            VERSION AND ELECTRON CAPTURE EFFECTS, POSITRON ANNI-  2210000100043 
            HILATION IN FLIGHT, GEOMETRY AND ATTENUATION IN THE   2210000100044 
            FOILS.                                                2210000100045 
ERR-ANALYS (DATA-ERR) THE TOTAL ERRORS WERE COMPOSED OF RANDOM    2210000100046 
            (0.5 - 7.5 PERCENT), NON-STATISTICAL (0.2 PERCENT FOR 2210000100047 
            ISOMERIC RATIO, 2.1 - 4.6 PERCENT FOR CROSS SECTIONS) 2210000100048 
            AND DECAY-SCHEME (1 - 3 PERCENT) ERROR CONTRIBUTIONS. 2210000100049 
STATUS     .DATA OBTAINED FROM MAIN REF.                          2210000100050 
HISTORY    (881101C) N.O.                                         2210000100051 
           (881216E)                                              2210000100052 
ENDBIB              50          0                                 2210000100053 
NOCOMMON             0          0                                 2210000100054 
ENDSUBENT           53          0                                 2210000199999 
SUBENT        22100002   19881216                             00002210000200001 
BIB                  4          6                                 2210000200002 
REACTION   (47-AG-107(N,2N)47-AG-106-G,,SIG)                      2210000200003 
DECAY-DATA (47-AG-106-G,24.MIN,B+,1960.,.527,                     2210000200004 
                               B+,1450.,.0644)                    2210000200005 
STATUS     .DATA OBTAINED FROM MAIN REF.                          2210000200006 
HISTORY    (881101C) N.O.                                         2210000200007 
           (881216E)                                              2210000200008 
ENDBIB               6          0                                 2210000200009 
NOCOMMON             0          0                                 2210000200010 
DATA                 5          2                                 2210000200011 
EN         DATA       DATA-ERR   MONIT      MONIT-ERR             2210000200012 
MEV        MB         MB         MB         MB                    2210000200013 
 1.4300E+01 8.1300E+02 3.7000E+01 1.1300E+02 1.0000E+00           2210000200014 
 1.4670E+01 8.3000E+02 3.5000E+01 1.0890E+02 7.0000E-01           2210000200015 
ENDDATA              4          0                                 2210000200016 
ENDSUBENT           15          0                                 2210000299999 
SUBENT        22100003   19881216                             00002210000300001 
BIB                  4          5                                 2210000300002 
REACTION   (47-AG-107(N,2N)47-AG-106-G,,SIG)                      2210000300003 
DECAY-DATA (47-AG-106-G,24.MIN,DG,512.,.1704)                     2210000300004 
STATUS     .DATA OBTAINED FROM MAIN REF.                          2210000300005 
HISTORY    (881101C) N.O.                                         2210000300006 
           (881216E)                                              2210000300007 
ENDBIB               5          0                                 2210000300008 
NOCOMMON             0          0                                 2210000300009 
DATA                 5          1                                 2210000300010 
EN         DATA       DATA-ERR   MONIT      MONIT-ERR             2210000300011 
MEV        MB         MB         MB         MB                    2210000300012 
 1.4670E+01 8.0600E+02 1.8000E+01 1.0890E+02 7.0000E-01           2210000300013 
ENDDATA              3          0                                 2210000300014 
ENDSUBENT           13          0                                 2210000399999 
SUBENT        22100004   19881216                             00002210000400001 
BIB                  4          5                                 2210000400002 
REACTION   (47-AG-107(N,2N)47-AG-106-M,,SIG)                      2210000400003 
DECAY-DATA (47-AG-106-M,8.28D,DG,512.,.882)                       2210000400004 
STATUS     .DATA OBTAINED FROM MAIN REF.                          2210000400005 
HISTORY    (881101C) N.O.                                         2210000400006 
           (881216E)                                              2210000400007 
ENDBIB               5          0                                 2210000400008 
NOCOMMON             0          0                                 2210000400009 
DATA                 5          1                                 2210000400010 
EN         DATA       DATA-ERR   MONIT      MONIT-ERR             2210000400011 
MEV        MB         MB         MB         MB                    2210000400012 
 1.4300E+01 6.0800E+02 2.2000E+01 1.1300E+02 1.0000E+00           2210000400013 
ENDDATA              3          0                                 2210000400014 
ENDSUBENT           13          0                                 2210000499999 
SUBENT        22100005   19881216                             00002210000500001 
BIB                  4          6                                 2210000500002 
REACTION   (47-AG-107(N,2N)47-AG-106-M/G,,SIG/RAT)                2210000500003 
DECAY-DATA (47-AG-106-G,24.MIN,DG,512.,.1704)                     2210000500004 
           (47-AG-106-M,8.28D,DG,512.,.882)                       2210000500005 
STATUS     .DATA OBTAINED FROM MAIN REF.                          2210000500006 
HISTORY    (881101C) N.O.                                         2210000500007 
           (881216E)                                              2210000500008 
ENDBIB               6          0                                 2210000500009 
NOCOMMON             0          0                                 2210000500010 
DATA                 5          1                                 2210000500011 
EN         DATA       DATA-ERR   MONIT      MONIT-ERR             2210000500012 
MEV        NO-DIM     NO-DIM     MB         MB                    2210000500013 
 1.4300E+01 7.6500E-01 4.0000E-03 1.1300E+02 1.0000E+00           2210000500014 
ENDDATA              3          0                                 2210000500015 
ENDSUBENT           14          0                                 2210000599999 
SUBENT        22100006   19881216                             00002210000600001 
BIB                  4          7                                 2210000600002 
REACTION   (47-AG-109(N,2N)47-AG-108-G,,SIG)                      2210000600003 
DECAY-DATA (47-AG-108-G,2.37MIN,B-,1650.,.954,                    2210000600004 
                                B-,1020.,.0176,                   2210000600005 
                                B+,890.,.0028)                    2210000600006 
STATUS     .DATA OBTAINED FROM MAIN REF.                          2210000600007 
HISTORY    (881101C) N.O.                                         2210000600008 
           (881216E)                                              2210000600009 
ENDBIB               7          0                                 2210000600010 
NOCOMMON             0          0                                 2210000600011 
DATA                 5          2                                 2210000600012 
EN         DATA       DATA-ERR   MONIT      MONIT-ERR             2210000600013 
MEV        MB         MB         MB         MB                    2210000600014 
 1.4300E+01 8.4800E+02 3.1000E+01 1.1300E+02 1.0000E+00           2210000600015 
 1.4670E+01 8.4200E+02 3.0000E+01 1.0890E+02 7.0000E-01           2210000600016 
ENDDATA              4          0                                 2210000600017 
ENDSUBENT           16          0                                 2210000699999 
SUBENT        22100007   19881216                             00002210000700001 
BIB                  4          5                                 2210000700002 
REACTION   (47-AG-109(N,P)46-PD-109,,SIG)                     22102210000700003 
DECAY-DATA (46-PD-109-G,13.427HR,B-,1028.,1.)                     2210000700004 
STATUS     .DATA OBTAINED FROM MAIN REF.                          2210000700005 
HISTORY    (881101C) N.O.                                         2210000700006 
           (881216E)                                              2210000700007 
ENDBIB               5          0                                 2210000700008 
NOCOMMON             0          0                                 2210000700009 
DATA                 5          1                                 2210000700010 
EN         DATA       DATA-ERR   MONIT      MONIT-ERR             2210000700011 
MEV        MB         MB         MB         MB                    2210000700012 
 1.4300E+01 1.5400E+01 8.0000E-01 1.1300E+02 1.0000E+00           2210000700013 
ENDDATA              3          0                                 2210000700014 
ENDSUBENT           13          0                                 2210000799999 
SUBENT        22100008   19881216                             00002210000800001 
BIB                  4          6                                 2210000800002 
REACTION   (47-AG-109(N,A)45-RH-106-M,,SIG)                       2210000800003 
DECAY-DATA (45-RH-106-M,130.MIN,B-,920.,.855,                     2210000800004 
                                B-,700.,.145)                     2210000800005 
STATUS     .DATA OBTAINED FROM MAIN REF.                          2210000800006 
HISTORY    (881101C) N.O.                                         2210000800007 
           (881216E)                                              2210000800008 
ENDBIB               6          0                                 2210000800009 
NOCOMMON             0          0                                 2210000800010 
DATA                 5          1                                 2210000800011 
EN         DATA       DATA-ERR   MONIT      MONIT-ERR             2210000800012 
MEV        MB         MB         MB         MB                    2210000800013 
 1.4300E+01 2.1000E+00 2.0000E-01 1.1300E+02 1.0000E+00           2210000800014 
ENDDATA              3          0                                 2210000800015 
ENDSUBENT           14          0                                 2210000899999 
ENDENTRY             8          0                                 2210099999999