ENTRY 20524 20170204 22592052400000001 SUBENT 20524001 20170204 22592052400100001 BIB 17 76 2052400100002 INSTITUTE (2GERJUL) 2052400100003 REFERENCE (J,JIN,36,3639,197412) 2052400100004 (P,NEANDC(E)-161U,197408) Abstract only. 2052400100005 AUTHOR (S.M.Qaim, R.Woelfle, G.Stoecklin) 2052400100006 TITLE Fast neutron induced ((n,t) + (n,n't)) reaction cross 2052400100007 sections in the medium and heavy mass regions 2052400100008 FACILITY (CYCLO,2GERJUL) Cyclotron. 2052400100009 INC-SOURCE (D-BE) Deuteron-beryllium. 53 MeV deuteron. 2052400100010 INC-SPECT Identical nature of the neutron spectrum with the one 2052400100011 at KFK cyclotron was confirmed. Maximum intensity was2052400100012 at E(n) = 22.5 MeV, and 80% of the neutrons 2052400100013 lie within the energy range of 14 to 30 MeV, giving 2052400100014 thereby E(n) = 22 +- 8 MeV. 2052400100015 .Irradiations were carried out for 6 to 10 hr at 2052400100016 neutron flux densities of (2 to 5) x 10**10/cm2/sec. 2052400100017 Neutron spectrum provided by S.M.Qaim ( 29-12-2016): 2052400100018 units: energy - MeV, yield - 10**8n/(muC*MeV*sr) 2052400100019 Energy Neutron yield Energy Neutron yield 2052400100020 12.5 124. 29.5 140. 2052400100021 13.5 158. 30.5 115. 2052400100022 14.5 175. 31.5 102. 2052400100023 15.5 199. 32.5 85. 2052400100024 16.5 196. 33.5 76. 2052400100025 17.5 208. 34.5 58. 2052400100026 18.5 232. 35.5 56. 2052400100027 19.5 251. 36.5 47. 2052400100028 20.5 260. 37.5 46. 2052400100029 22.5 259. 38.5 40. 2052400100030 23.5 246. 39.5 34. 2052400100031 24.5 238. 40.5 31. 2052400100032 25.5 219. 41.5 27. 2052400100033 26.5 192. 42.5 24. 2052400100034 27.5 172. 43.5 21. 2052400100035 28.5 152. 2052400100036 REL-REF (R,O1924002,G.W.Schweimer,J,NP/A,100,537,1967) 2052400100037 Ref. for neutron spectrum 2052400100038 SAMPLE High purity target material sealed under vacuum in a 2052400100039 quartz ampoule. Au monitor foil was wrapped around. 2052400100040 METHOD (ACTIV) Activation. Because (n,n pn), (n,p2n), 2052400100041 (n,n d) and (n,dn) processes, which lead to the same 2052400100042 product nucleus as the (n,t) reaction, are also 2052400100043 energetically possible, radiochemical determination of2052400100044 the produced tritium was therefore necessary. 2052400100045 DETECTOR (SCIN) Tri-Carb scintillation spectrometer. 2052400100046 Typical liquid mixtures were, H2O(+HTO)=10%, 2052400100047 Scintillator solution =90%. 2052400100048 The scintillator solution was made by dissolving 100 g2052400100049 naphthalene, 7 g 2,5-diphenyloxazol(ppo) and 0.3 g 2052400100050 2,2-p-phenylen-bis(5-phenyloxazol)(popop) in 1 litre 2052400100051 p-dioxane. 2052400100052 MONITOR (79-AU-197(N,2N)79-AU-196,,SIG) 2052400100053 Neutron flux was monitored. 2052400100054 .Deuteron beam was also measured at the Be-converter 2052400100055 using Faraday cup. 2052400100056 RAD-DET (1-H-3,B-) 2052400100057 STATUS (TABLE) From table 1 of J.Inorg.Nucl.Chem.36,3639,1974 2052400100058 CORRECTION Li impurity in each target material was under 1 ppm 2052400100059 level. A rough estimate showed that the contribution 2052400100060 from this impurity to tritium formation was less than 2052400100061 1%. 2052400100062 ERR-ANALYS (DATA-ERR) Both random and systematic errors were 2052400100063 taken into account. The possible major sources of 2052400100064 error were the uncertainty in the quantitative 2052400100065 isolation of tritium, the uncertainty in the relative 2052400100066 efficiency of the (beta-)-detector and the uncertainty 2052400100067 in the determination of neutron fluxes. 2052400100068 Combining all the individual errors the overall error 2052400100069 for each cross-section value was obtained. 2052400100070 HISTORY (19740626C) 2052400100071 (19760421E) 2052400100072 (20140331A) SD: Updated to new date formats,lower case.2052400100073 Corrections according last EXFOR rules and Dict. 2052400100074 SF8=SPA was added to REACTION code in Subents 2-14. 2052400100075 (20170204A) M.M. INC-SPECT information was added. 2052400100076 The article was checked, BIB information was updated 2052400100077 in SAMPLE,STATUS . 2052400100078 ENDBIB 76 0 2052400100079 COMMON 1 3 2052400100080 EN-APRX 2052400100081 MEV 2052400100082 22.5 2052400100083 ENDCOMMON 3 0 2052400100084 ENDSUBENT 83 0 2052400199999 SUBENT 20524002 20170204 22592052400200001 BIB 2 2 2052400200002 REACTION (22-TI-0(N,X)1-H-3,,SIG,,SPA) 2052400200003 SAMPLE Purity better than 99.9%. Weight 0.4546 g. 2052400200004 ENDBIB 2 0 2052400200005 NOCOMMON 0 0 2052400200006 DATA 2 1 2052400200007 DATA DATA-ERR 2052400200008 MB MB 2052400200009 4.2 1.0 2052400200010 ENDDATA 3 0 2052400200011 ENDSUBENT 10 0 2052400299999 SUBENT 20524003 20170204 22592052400300001 BIB 2 2 2052400300002 REACTION (25-MN-55(N,X)1-H-3,,SIG,,SPA) 2052400300003 SAMPLE Purity specpure . Weight 0.9047 g . 2052400300004 ENDBIB 2 0 2052400300005 NOCOMMON 0 0 2052400300006 DATA 2 1 2052400300007 DATA DATA-ERR 2052400300008 MB MB 2052400300009 4.9 1.2 2052400300010 ENDDATA 3 0 2052400300011 ENDSUBENT 10 0 2052400399999 SUBENT 20524004 20170204 22592052400400001 BIB 2 2 2052400400002 REACTION (29-CU-0(N,X)1-H-3,,SIG,,SPA) 2052400400003 SAMPLE Purity 99.999%. Weight 1.1114 g . 2052400400004 ENDBIB 2 0 2052400400005 NOCOMMON 0 0 2052400400006 DATA 2 1 2052400400007 DATA DATA-ERR 2052400400008 MB MB 2052400400009 5.2 1.4 2052400400010 ENDDATA 3 0 2052400400011 ENDSUBENT 10 0 2052400499999 SUBENT 20524005 20170204 22592052400500001 BIB 2 2 2052400500002 REACTION (31-GA-0(N,X)1-H-3,,SIG,,SPA) 2052400500003 SAMPLE Purity 99.999%. Weight 0.6995 g . 2052400500004 ENDBIB 2 0 2052400500005 NOCOMMON 0 0 2052400500006 DATA 2 1 2052400500007 DATA DATA-ERR 2052400500008 MB MB 2052400500009 4.2 0.8 2052400500010 ENDDATA 3 0 2052400500011 ENDSUBENT 10 0 2052400599999 SUBENT 20524006 20170204 22592052400600001 BIB 2 2 2052400600002 REACTION (41-NB-93(N,X)1-H-3,,SIG,,SPA) 2052400600003 SAMPLE Purity better than 99.6%. Weight 1.4481 g . 2052400600004 ENDBIB 2 0 2052400600005 NOCOMMON 0 0 2052400600006 DATA 2 1 2052400600007 DATA DATA-ERR 2052400600008 MB MB 2052400600009 4.2 0.8 2052400600010 ENDDATA 3 0 2052400600011 ENDSUBENT 10 0 2052400699999 SUBENT 20524007 20170204 22592052400700001 BIB 2 4 2052400700002 REACTION (42-MO-92(N,X)1-H-3,,SIG,,SPA) 2052400700003 SAMPLE (42-MO-92,ENR=0.9827) Enriched sample, Mo92 98.27% , 2052400700004 Mo96 0.26% , Mo97 0.13% , Mo98 0.27% , Mo100 0.25% . 2052400700005 Weight 0.2854 g . 2052400700006 ENDBIB 4 0 2052400700007 NOCOMMON 0 0 2052400700008 DATA 2 1 2052400700009 DATA DATA-ERR 2052400700010 MB MB 2052400700011 4.1 0.8 2052400700012 ENDDATA 3 0 2052400700013 ENDSUBENT 12 0 2052400799999 SUBENT 20524008 20170204 22592052400800001 BIB 2 2 2052400800002 REACTION (47-AG-0(N,X)1-H-3,,SIG,,SPA) 2052400800003 SAMPLE Purity 99.99%. Weight 2.1357 g . 2052400800004 ENDBIB 2 0 2052400800005 NOCOMMON 0 0 2052400800006 DATA 2 1 2052400800007 DATA DATA-ERR 2052400800008 MB MB 2052400800009 4.4 0.8 2052400800010 ENDDATA 3 0 2052400800011 ENDSUBENT 10 0 2052400899999 SUBENT 20524009 20170204 22592052400900001 BIB 2 2 2052400900002 REACTION (49-IN-0(N,X)1-H-3,,SIG,,SPA) 2052400900003 SAMPLE Purity specpure . Weight 1.0583 g . 2052400900004 ENDBIB 2 0 2052400900005 NOCOMMON 0 0 2052400900006 DATA 2 1 2052400900007 DATA DATA-ERR 2052400900008 MB MB 2052400900009 3.9 0.8 2052400900010 ENDDATA 3 0 2052400900011 ENDSUBENT 10 0 2052400999999 SUBENT 20524010 20170204 22592052401000001 BIB 2 2 2052401000002 REACTION (51-SB-0(N,X)1-H-3,,SIG,,SPA) 2052401000003 SAMPLE Purity 99.9999%. Weight 1.3874 g . 2052401000004 ENDBIB 2 0 2052401000005 NOCOMMON 0 0 2052401000006 DATA 2 1 2052401000007 DATA DATA-ERR 2052401000008 MB MB 2052401000009 4.3 1.3 2052401000010 ENDDATA 3 0 2052401000011 ENDSUBENT 10 0 2052401099999 SUBENT 20524011 20170204 22592052401100001 BIB 2 2 2052401100002 REACTION (73-TA-0(N,X)1-H-3,,SIG,,SPA) 2052401100003 SAMPLE Purity better than 99.8% . Weight 1.4845 g . 2052401100004 ENDBIB 2 0 2052401100005 NOCOMMON 0 0 2052401100006 DATA 2 1 2052401100007 DATA DATA-ERR 2052401100008 MB MB 2052401100009 4.5 1.3 2052401100010 ENDDATA 3 0 2052401100011 ENDSUBENT 10 0 2052401199999 SUBENT 20524012 20170204 22592052401200001 BIB 2 2 2052401200002 REACTION (75-RE-0(N,X)1-H-3,,SIG,,SPA) 2052401200003 SAMPLE Purity 99.95%. Weight 1.9389 g . 2052401200004 ENDBIB 2 0 2052401200005 NOCOMMON 0 0 2052401200006 DATA 2 1 2052401200007 DATA DATA-ERR 2052401200008 MB MB 2052401200009 4.1 0.7 2052401200010 ENDDATA 3 0 2052401200011 ENDSUBENT 10 0 2052401299999 SUBENT 20524013 20170204 22592052401300001 BIB 2 2 2052401300002 REACTION (79-AU-197(N,X)1-H-3,,SIG,,SPA) 2052401300003 SAMPLE Purity 99.999%. Weight 0.8969 g . 2052401300004 ENDBIB 2 0 2052401300005 NOCOMMON 0 0 2052401300006 DATA 2 1 2052401300007 DATA DATA-ERR 2052401300008 MB MB 2052401300009 3.9 0.9 2052401300010 ENDDATA 3 0 2052401300011 ENDSUBENT 10 0 2052401399999 SUBENT 20524014 20170204 22592052401400001 BIB 2 2 2052401400002 REACTION (83-BI-209(N,X)1-H-3,,SIG,,SPA) 2052401400003 SAMPLE Purity 99.99%. Weight 2.0920 g . 2052401400004 ENDBIB 2 0 2052401400005 NOCOMMON 0 0 2052401400006 DATA 2 1 2052401400007 DATA DATA-ERR 2052401400008 MB MB 2052401400009 3.7 0.7 2052401400010 ENDDATA 3 0 2052401400011 ENDSUBENT 10 0 2052401499999 ENDENTRY 14 0 2052499999999