ENTRY M0674 20050614 M037M067400000001 SUBENT M0674001 20050614 M037M067400100001 BIB 16 32 M067400100002 TITLE Measurement of the isomer ratio in (g,n) reactions M067400100003 for the barium isotopes. M067400100004 AUTHOR (A.G.BELOV,YU.P.GANGRSKY,A.P.TONCHEV,N.P.BALABANOV, M067400100005 H.G.Hristov) M067400100006 INSTITUTE (4ZZZDUB) Joint Institute of Nuclear Research (JINR), M067400100007 DUBNA M067400100008 REFERENCE (J,YF,59,389,1996) M067400100009 (J,PAN,59,367,1996) M067400100010 INC-SOURCE (BRST) M067400100011 FACILITY (MICRT,4ZZZDUB) JINR MT-25 Micritron. M067400100012 SAMPLE The barium peroxide samples. M067400100013 METHOD (ACTIV) Induced g-activity was measured. M067400100014 DETECTOR (GELI) 60 cm***3 volume GE(LI)-detector. M067400100015 ANALYSIS (AREA) Isomer yield, cross section and isomer ratio M067400100016 measurement using the g-quanta energy spectrum lines M067400100017 data. M067400100018 MONITOR (29-CU-65(G,N)29-CU-64,,SIG) M067400100019 REL-REF (R,,S.C.FULTZ+,J,PR/B,133,1149,1964) Monitor cross M067400100020 section. M067400100021 ERR-ANALYS (DATA-ERR) Statistical errors are given. M067400100022 STATUS (CURVE) Data from Figs 3 and 4 were compiled at the M067400100023 Russia MSU SINP CDFE by V.V.VARLAMOV. M067400100024 COMMENT The cross section of (g,n) reactions in the range of M067400100025 the Giant Dipole Resonance, leading to the ground M067400100026 and isomeric states h-11/2 in odd isotopes of Ba M067400100027 with mass number A = 129 - 137, are presented. An M067400100028 activation method of measurement has been used. The M067400100029 dependence of the isomeric ratio on g-energy and M067400100030 mass number of the isotopes has been obtained. M067400100031 Different factors influencing the value of the M067400100032 isomeric ratio are discussed. M067400100033 HISTORY (20050607C) M067400100034 ENDBIB 32 0 M067400100035 NOCOMMON 0 0 M067400100036 ENDSUBENT 35 0 M067400199999 SUBENT M0674002 20050614 M037M067400200001 BIB 1 1 M067400200002 REACTION (56-BA-130(G,N)56-BA-129-M,,SIG,,BRS) M067400200003 ENDBIB 1 0 M067400200004 NOCOMMON 0 0 M067400200005 DATA 3 12 M067400200006 EN DATA DATA-ERR M067400200007 MEV MB MB M067400200008 12.5 1.17 1.67 M067400200009 13.5 13.15 1.1 M067400200010 14.7 50.17 6. M067400200011 15.7 70.18 6.67 M067400200012 16.9 55.17 4. M067400200013 18. 39.82 3.5 M067400200014 19. 26. 2.33 M067400200015 20. 14.5 1.67 M067400200016 21.2 7.17 1.5 M067400200017 22.25 4.84 1.17 M067400200018 23.3 3.5 1.15 M067400200019 24.3 2.33 1.13 M067400200020 ENDDATA 14 0 M067400200021 ENDSUBENT 20 0 M067400299999 SUBENT M0674003 20050614 M037M067400300001 BIB 1 1 M067400300002 REACTION (56-BA-132(G,N)56-BA-131-M,,SIG,,BRS) M067400300003 ENDBIB 1 0 M067400300004 NOCOMMON 0 0 M067400300005 DATA 3 12 M067400300006 EN DATA DATA-ERR M067400300007 MEV MB MB M067400300008 11.6 2.43 1.4 M067400300009 12.5 7.9 1.15 M067400300010 13.5 15.32 1.4 M067400300011 14.7 44.68 4.1 M067400300012 15.7 53.62 5.11 M067400300013 16.9 41.23 4.98 M067400300014 18. 25.4 2.68 M067400300015 19. 12.75 1.4 M067400300016 20. 6.38 1.38 M067400300017 21.2 3.96 1.28 M067400300018 22.25 2.43 1.2 M067400300019 23.3 2.17 1.15 M067400300020 ENDDATA 14 0 M067400300021 ENDSUBENT 20 0 M067400399999 SUBENT M0674004 20050614 M037M067400400001 BIB 1 1 M067400400002 REACTION (56-BA-134(G,N)56-BA-133-M,,SIG,,BRS) M067400400003 ENDBIB 1 0 M067400400004 NOCOMMON 0 0 M067400400005 DATA 3 12 M067400400006 EN DATA DATA-ERR M067400400007 MEV MB MB M067400400008 11.6 8.8 1.28 M067400400009 12.5 20.55 1.66 M067400400010 13.5 36.36 3.32 M067400400011 14.7 46.96 4.6 M067400400012 15.7 51.14 5.11 M067400400013 16.9 26.94 2.55 M067400400014 18. 12.77 1.4 M067400400015 19. 7.66 1.15 M067400400016 20. 4.98 1.15 M067400400017 21.2 1.41 1.4 M067400400018 22.25 1.4 1.5 M067400400019 23.3 1.39 1.4 M067400400020 ENDDATA 14 0 M067400400021 ENDSUBENT 20 0 M067400499999 SUBENT M0674005 20050614 M037M067400500001 BIB 1 1 M067400500002 REACTION (56-BA-136(G,N)56-BA-135-M,,SIG,,BRS) M067400500003 ENDBIB 1 0 M067400500004 NOCOMMON 0 0 M067400500005 DATA 3 12 M067400500006 EN DATA DATA-ERR M067400500007 MEV MB MB M067400500008 11. 1.28 1.28 M067400500009 12. 2.8 1.3 M067400500010 13.2 15.3 1.4 M067400500011 14.2 38.17 3.83 M067400500012 15.25 49.9 4.25 M067400500013 16.45 42.13 3.75 M067400500014 17.5 28.1 2.68 M067400500015 19.6 8.96 1.15 M067400500016 20.6 6.1 1.05 M067400500017 21.25 2.82 1.02 M067400500018 22.9 1.78 1. M067400500019 23.95 1.27 1.17 M067400500020 ENDDATA 14 0 M067400500021 ENDSUBENT 20 0 M067400599999 SUBENT M0674006 20050614 M037M067400600001 BIB 1 1 M067400600002 REACTION (56-BA-138(G,N)56-BA-137-M,,SIG,,BRS) M067400600003 ENDBIB 1 0 M067400600004 NOCOMMON 0 0 M067400600005 DATA 3 13 M067400600006 EN DATA DATA-ERR M067400600007 MEV MB MB M067400600008 11.5 .9 .9 M067400600009 12.5 2.34 1. M067400600010 13.5 14.4 1. M067400600011 14.5 24.23 .95 M067400600012 15.5 36.04 .9 M067400600013 16.5 24.05 .75 M067400600014 17.5 12.43 .9 M067400600015 18.5 5.23 .85 M067400600016 19.6 1.98 .75 M067400600017 20.45 1.4 1.2 M067400600018 21.45 1.08 1.08 M067400600019 22.3 .91 .9 M067400600020 23.4 .89 .9 M067400600021 ENDDATA 15 0 M067400600022 ENDSUBENT 21 0 M067400699999 SUBENT M0674007 20050614 M037M067400700001 BIB 1 1 M067400700002 REACTION (56-BA-130(G,N)56-BA-129-M/G,,SIG/RAT,,BRS) M067400700003 ENDBIB 1 0 M067400700004 NOCOMMON 0 0 M067400700005 DATA 3 22 M067400700006 EN DATA DATA-ERR M067400700007 MEV NO-DIM NO-DIM M067400700008 11. .0106 .0027 M067400700009 12. .0532 .008 M067400700010 13. .1062 M067400700011 14. .1416 M067400700012 15. .1658 M067400700013 16. .1794 M067400700014 16.5 .1996 M067400700015 17. .21 M067400700016 17.5 .2168 M067400700017 18. .2288 M067400700018 18.5 .2316 M067400700019 19. .234 M067400700020 19.5 .25 M067400700021 20. .25 M067400700022 20.5 .2497 M067400700023 21. .2608 M067400700024 21.5 .2715 M067400700025 22. .2603 M067400700026 22.5 .2715 M067400700027 23. .2717 M067400700028 23.5 .28 M067400700029 24.5 .2848 .024 M067400700030 ENDDATA 24 0 M067400700031 ENDSUBENT 30 0 M067400799999 SUBENT M0674008 20050614 M037M067400800001 BIB 1 1 M067400800002 REACTION (56-BA-132(G,N)56-BA-131-M/G,,SIG/RAT,,BRS) M067400800003 ENDBIB 1 0 M067400800004 NOCOMMON 0 0 M067400800005 DATA 3 13 M067400800006 EN DATA DATA-ERR M067400800007 MEV NO-DIM NO-DIM M067400800008 11. .0106 .0027 M067400800009 12. .0263 .009 M067400800010 13. .0665 M067400800011 14. .0953 M067400800012 15. .1198 M067400800013 16. .1387 M067400800014 17. .16 M067400800015 18. .1773 M067400800016 19. .2159 M067400800017 20. .2214 M067400800018 21. .229 M067400800019 22. .229 M067400800020 23. .2398 .0442 M067400800021 ENDDATA 15 0 M067400800022 ENDSUBENT 21 0 M067400899999 SUBENT M0674009 20050614 M037M067400900001 BIB 1 1 M067400900002 REACTION (56-BA-134(G,N)56-BA-133-M/G,,SIG/RAT,,BRS) M067400900003 ENDBIB 1 0 M067400900004 NOCOMMON 0 0 M067400900005 DATA 3 13 M067400900006 EN DATA DATA-ERR M067400900007 MEV NO-DIM NO-DIM M067400900008 12. .016 .008 M067400900009 13. .0362 M067400900010 14. .072 M067400900011 15. .0876 M067400900012 16.5 .1352 M067400900013 17.5 .141 M067400900014 18.5 .147 M067400900015 19.5 .1568 M067400900016 20.5 .1616 M067400900017 21.5 .167 M067400900018 22.5 .1703 M067400900019 23.5 .1708 M067400900020 24.5 .1757 .0138 M067400900021 ENDDATA 15 0 M067400900022 ENDSUBENT 21 0 M067400999999 SUBENT M0674010 20050614 M037M067401000001 BIB 1 1 M067401000002 REACTION (56-BA-136(G,N)56-BA-135-M/G,,SIG/RAT,,BRS) M067401000003 ENDBIB 1 0 M067401000004 NOCOMMON 0 0 M067401000005 DATA 3 13 M067401000006 EN DATA DATA-ERR M067401000007 MEV NO-DIM NO-DIM M067401000008 12. .532 M067401000009 13. .655 M067401000010 15. .0876 M067401000011 16. .101 M067401000012 17. .109 M067401000013 18. .119 M067401000014 19. .1252 M067401000015 20. .13 M067401000016 21. .141 M067401000017 22. .144 M067401000018 23. .145 M067401000019 24. .1464 M067401000020 25. .147 .0106 M067401000021 ENDDATA 15 0 M067401000022 ENDSUBENT 21 0 M067401099999 SUBENT M0674011 20050614 M037M067401100001 BIB 1 1 M067401100002 REACTION (56-BA-138(G,N)56-BA-137-M/G,,SIG/RAT,,BRS) M067401100003 ENDBIB 1 0 M067401100004 NOCOMMON 0 0 M067401100005 DATA 3 12 M067401100006 EN DATA DATA-ERR M067401100007 MEV NO-DIM NO-DIM M067401100008 12. .008 M067401100009 13. .04 M067401100010 14. .076 M067401100011 17. .103 M067401100012 18. .1062 M067401100013 19. .1107 M067401100014 20. .1163 M067401100015 21. .1214 M067401100016 22. .1224 M067401100017 23. .1198 M067401100018 24. .12 M067401100019 25. .1197 .154 M067401100020 ENDDATA 14 0 M067401100021 ENDSUBENT 20 0 M067401199999 ENDENTRY 11 0 M067499999999