ENTRY 22183 20211230 23062218300000001 SUBENT 22183001 20211230 23062218300100001 BIB 16 53 2218300100002 TITLE Systematic studies of excitation functions of (n,t) 2218300100003 reactions on medium and heavy mass nuclei 2218300100004 AUTHOR (R.Woelfle,S.M.Qaim,H.Liskien,R.Widera) 2218300100005 REFERENCE (J,RCA,50,5,1990) 2218300100006 INSTITUTE (2GERJUL) R.W., S.M.Q., Experimental site (separation 2218300100007 and counting) 2218300100008 (2ZZZGEL) H.L., R.W., Experimental site (irradiation) 2218300100009 FACILITY (VDG,2ZZZGEL) Cn-type Van de Graaff machine 2218300100010 REL-REF (O,21837001,S.M.Qaim+,J,PR/C,25,203,1982) for previous 2218300100011 results form this series of activations experiments 2218300100012 using various samples. 2218300100013 INC-SOURCE (D-T) Water cooled Ti(T) target, bombarded with 3 MeV 2218300100014 deuterons at 50 uAmp. 2218300100015 METHOD (ACTIV) Vacuum extraction and gas counting of tritium. 2218300100016 Activation reactions used as internal monitors. 2218300100017 SAMPLE A hemispherical compact geometry, diam 40 mm, was used2218300100018 for irradiations with the Ti(T) n source placed at the2218300100019 centre. Each sample was divided into three segments, 2218300100020 and a Monte Carlo calculation was performed to 2218300100021 calculate the neutron energy range seen by each 2218300100022 segment, taking into account single (but not multiple)2218300100023 scattering in the tritium target, cooling water and 2218300100024 surrounding capsule. 2218300100025 Angular range neutron energy range 2218300100026 ------------- -------------------- 2218300100027 0-40 degrees 19.02 +/- 0.56 MeV 2218300100028 40-65 degrees 17.68 +/- 0.77 MeV 2218300100029 65-82 degrees 16.32 +/- 0.58 MeV 2218300100030 DETECTOR (PROPC) Gas counting tube to measure tritium activity 2218300100031 using low-level anticoincidence beta-counting in the 2218300100032 gas phase. 2218300100033 (GELI) 32 Cm3 Ge(Li) detector to measure gamma 2218300100034 activity induced by the monitor reactions. 2218300100035 Proton recoil telescope 80 cm from the neutron source 2218300100036 in the 130 degree direction, used as an external flux 2218300100037 monitor. 2218300100038 PART-DET (B-) Beta particles from tritium decay. 2218300100039 (DG) Decay gammas from monitor reactions. 2218300100040 CORRECTION Neutron scattering in the tritium target,cooling water2218300100041 and the surrounding capsule 2218300100042 ERR-ANALYS (DATA-ERR) Total error, formed by summing the 2218300100043 statistical and systematic errors in quadrature. 2218300100044 COMMENT Two external monitors were also used - 2218300100045 1) a proton recoil counter to measure the 2218300100046 neutron flux directly 2218300100047 2) the activity induced in a piece of cobalt 2218300100048 placed 25 cm from the neutron source in the 2218300100049 0 degree direction. 2218300100050 All methods produced consistent results. 2218300100051 STATUS (TABLE) Table 1 from Radiochimica Acta 50(1990)5 2218300100052 HISTORY (19910510C) S.W. 2218300100053 (20211230U) SD:Updated to new date formats,lower case. 2218300100054 Corrections in all Subents. ERR-T -> DATA-ERR. 2218300100055 ENDBIB 53 0 2218300100056 NOCOMMON 0 0 2218300100057 ENDSUBENT 56 0 2218300199999 SUBENT 22183002 20211230 23062218300200001 BIB 5 18 2218300200002 REACTION (4-BE-9(N,T)3-LI-7,,SIG) 2218300200003 MONITOR (13-AL-27(N,A)11-NA-24,,SIG) 2218300200004 MONIT-REF (,H.Vonach,S,IAEA-TECDOC-227,59,1985) 2218300200005 Table with values is given from S.Tagesen and 2218300200006 H.Vonach, Physics Data 13-1, Fachinformationszentrum, 2218300200007 Karlsruhe (1981). 2218300200008 (11421004,H.O.Menlove+,J,PR,163,1308,1967) 2218300200009 SAMPLE Be sheets, 98.5% pure and 1.5 mm thick sandwiched 2218300200010 between two 0.75 mm thick Al monitor sheets, cut in 2218300200011 various shapes and sizes and placed together to form 2218300200012 the required hemispherical geometry. 2218300200013 Angular range weight of sample (g) 2218300200014 ------------- -------------------- 2218300200015 0-40 degrees 2.96 2218300200016 40-65 degrees 4.17 2218300200017 65-82 degrees 3.17 2218300200018 HISTORY (20211230U) SD: STATUS moved to Subent 001. 2218300200019 ERR-T -> DATA-ERR. REL-REF added. MONITOR updated. 2218300200020 ENDBIB 18 0 2218300200021 NOCOMMON 0 0 2218300200022 DATA 5 3 2218300200023 EN EN-ERR MONIT DATA DATA-ERR 2218300200024 MEV MEV MB MB MB 2218300200025 19.02 0.56 48.2 30.2 2.7 2218300200026 17.68 0.77 65.1 30.4 2.4 2218300200027 16.32 0.58 87.3 30.1 3.1 2218300200028 ENDDATA 5 0 2218300200029 ENDSUBENT 28 0 2218300299999 SUBENT 22183003 20220101 23062218300300001 BIB 5 13 2218300300002 REACTION (23-V-51(N,T)22-TI-49,,SIG) 2218300300003 MONITOR (23-V-51(N,A)21-SC-48,,SIG) 2218300300004 MONIT-REF (20485002,A.Paulsen+,J,AKE,22,291,1974) 2218300300005 SAMPLE V sheets, 99.9% pure and 1 mm thick, cut in various 2218300300006 shapes and sizes and placed together to form the 2218300300007 required hemispherical geometry. 2218300300008 Angular range weight of sample (g) 2218300300009 ------------- -------------------- 2218300300010 0-40 degrees 18.15 2218300300011 40-65 degrees 25.55 2218300300012 65-82 degrees 17.55 2218300300013 HISTORY (20211230U) SD: STATUS moved to Subent 001. 2218300300014 ERR-T -> DATA-ERR. REL-REF added. MONITOR updated. 2218300300015 ENDBIB 13 0 2218300300016 NOCOMMON 0 0 2218300300017 DATA 5 3 2218300300018 EN EN-ERR MONIT DATA DATA-ERR 2218300300019 MEV MEV MB MB MB 2218300300020 19.02 0.56 17.7 1.12 0.09 2218300300021 17.68 0.77 19.9 0.85 0.07 2218300300022 16.32 0.58 19.1 0.55 0.04 2218300300023 ENDDATA 5 0 2218300300024 ENDSUBENT 23 0 2218300399999 SUBENT 22183004 20220101 23062218300400001 BIB 5 14 2218300400002 REACTION (49-IN-115(N,T)48-CD-113,,SIG) 2218300400003 MONITOR (49-IN-115(N,2N)49-IN-114-M,,SIG) 2218300400004 MONIT-REF (11421007,H.O.Menlove+,J,PR,163,1308,1967) 2218300400005 For In a mean of values given in these refs was adopted2218300400006 SAMPLE 99.999 % Pure in, melted in an argon atmosphere and 2218300400007 formed into the segments of the required hemispherical2218300400008 geometry using a gypsum mould. 2218300400009 Angular range weight of sample (g) 2218300400010 ------------- -------------------- 2218300400011 0-40 degrees 22.45 2218300400012 40-65 degrees 34.02 2218300400013 65-82 degrees 25.29 2218300400014 HISTORY (20211230U) SD: STATUS moved to Subent 001. 2218300400015 ERR-T -> DATA-ERR. REL-REF added. MONITOR updated. 2218300400016 ENDBIB 14 0 2218300400017 NOCOMMON 0 0 2218300400018 DATA 5 3 2218300400019 EN EN-ERR MONIT DATA DATA-ERR 2218300400020 MEV MEV MB MB MB 2218300400021 19.02 0.56 1023. 1.39 0.15 2218300400022 17.68 0.77 1112. 0.47 0.05 2218300400023 16.32 0.58 1205. 0.23 0.03 2218300400024 ENDDATA 5 0 2218300400025 ENDSUBENT 24 0 2218300499999 SUBENT 22183005 20220101 23062218300500001 BIB 5 13 2218300500002 REACTION (57-LA-139(N,T)56-BA-137,,SIG) 2218300500003 MONITOR (57-LA-139(N,A)55-CS-136,,SIG) 2218300500004 MONIT-REF (22108005,R.Woelfle+,J,ARI,39,407,1988) 2218300500005 SAMPLE 99.6 % Pure in, melted in an argon atmosphere and 2218300500006 formed into the segments of the required hemispherical2218300500007 geometry using a graphite mould. 2218300500008 Angular range weight of sample (g) 2218300500009 ------------- -------------------- 2218300500010 0-40 degrees 20.04 2218300500011 40-65 degrees 28.70 2218300500012 65-82 degrees 21.88 2218300500013 HISTORY (20211230U) SD: STATUS moved to Subent 001. 2218300500014 ERR-T -> DATA-ERR. REL-REF added. MONITOR updated. 2218300500015 ENDBIB 13 0 2218300500016 NOCOMMON 0 0 2218300500017 DATA 5 3 2218300500018 EN EN-ERR MONIT DATA DATA-ERR 2218300500019 MEV MEV MB MB MB 2218300500020 19.02 0.56 3.35 1.70 0.25 2218300500021 17.68 0.77 3.29 1.21 0.16 2218300500022 16.32 0.58 3.05 0.76 0.10 2218300500023 ENDDATA 5 0 2218300500024 ENDSUBENT 23 0 2218300599999 SUBENT 22183006 20220101 23062218300600001 BIB 5 13 2218300600002 REACTION (73-TA-181(N,T)72-HF-179,,SIG) 2218300600003 MONITOR (73-TA-181(N,P)72-HF-181,,SIG) 2218300600004 MONIT-REF (22108006,R.Woelfle+,J,ARI,39,407,1988) 2218300600005 SAMPLE Ta sheets, 99.9% pure and 1 mm thick, cut in various 2218300600006 shapes and sizes and placed together to form the 2218300600007 required hemispherical geometry. 2218300600008 Angular range weight of sample (g) 2218300600009 ------------- -------------------- 2218300600010 0-40 degrees 51.52 2218300600011 40-65 degrees 72.54 2218300600012 65-82 degrees 50.40 2218300600013 HISTORY (20211230U) SD: STATUS moved to Subent 001. 2218300600014 ERR-T -> DATA-ERR. REL-REF added. MONITOR updated. 2218300600015 ENDBIB 13 0 2218300600016 NOCOMMON 0 0 2218300600017 DATA 5 3 2218300600018 EN EN-ERR MONIT DATA DATA-ERR 2218300600019 MEV MEV MB MB MB 2218300600020 19.02 0.56 7.93 1.05 0.09 2218300600021 17.68 0.77 6.98 0.66 0.06 2218300600022 16.32 0.58 5.78 0.33 0.03 2218300600023 ENDDATA 5 0 2218300600024 ENDSUBENT 23 0 2218300699999 SUBENT 22183007 20220101 23062218300700001 BIB 6 18 2218300700002 REACTION (83-BI-209(N,T)82-PB-207,,SIG) 2218300700003 MONITOR (49-IN-115(N,2N)49-IN-114-M,,SIG) 2218300700004 MONIT-REF (11421007,H.O.Menlove+,J,PR,163,1308,1967) 2218300700005 For In a mean of values given in these refs was adopted2218300700006 SAMPLE An alloy containing 99.9995% pure Bi and 99.999% 2218300700007 pure in (included as monitor). Composition determined 2218300700008 gravimetrically to be 97.623% Bi and 2.377% In. The 2218300700009 alloy was melted in an argon atmosphere and formed 2218300700010 into the segments of the required hemispherical 2218300700011 geometry using a gypsum mould. 2218300700012 Angular range weight of sample (g) 2218300700013 ------------- -------------------- 2218300700014 0-40 degrees 25.33 (Bi+in) 2218300700015 40-65 degrees 40.19 (Bi+in) 2218300700016 65-82 degrees 28.80 (Bi+in) 2218300700017 METHOD (MOMIX) 2218300700018 HISTORY (20211230U) SD: STATUS moved to Subent 001. 2218300700019 ERR-T -> DATA-ERR. REL-REF added. MONITOR updated. 2218300700020 ENDBIB 18 0 2218300700021 NOCOMMON 0 0 2218300700022 DATA 5 3 2218300700023 EN EN-ERR MONIT DATA DATA-ERR 2218300700024 MEV MEV MB MB MB 2218300700025 19.02 0.56 1023. 1.14 0.13 2218300700026 17.68 0.77 1112. 0.81 0.09 2218300700027 16.32 0.58 1205. 0.46 0.06 2218300700028 ENDDATA 5 0 2218300700029 ENDSUBENT 28 0 2218300799999 ENDENTRY 7 0 2218399999999