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