ENTRY 20439 20061213 21812043900000001 SUBENT 20439001 20061213 21812043900100001 BIB 16 27 2043900100002 INSTITUTE (2SWTWUR) 2043900100003 REFERENCE (J,JIN,33,1221,197105) Main reference 2043900100004 (R,EIR-202,197107) 2043900100005 AUTHOR (W.Blaser, A.Wyttenbach, P.Baertschi) 2043900100006 TITLE -Reaction cross-section and resonance integral for 2043900100007 O18(N,g)O19.- 2043900100008 INC-SOURCE (REAC ) E.I.R. Swimming-pool reactor saphir. 2043900100009 INC-SPECT Thermal neutron flux = 9.0e+12 N/cm**2/sec. 2043900100010 SAMPLE Two batches of Na(2)-Co(3), with 43.5 percent 2043900100011 and 84.6 percent O-18 respectively. 2043900100012 METHOD (ACTIV) Activation, the irradiation time was 30 sec.2043900100013 DETECTOR (GELI ) 40 cm3 Ge(Li) detector coupled to 2043900100014 a intertechnique 4000 channel analyzer. 2043900100015 PART-DET (G) Gammas. 2043900100016 MONITOR (11-NA-23(N,G)11-NA-24,,SIG) 2043900100017 MONIT-REF .BNL-325, 2Nd edn., Suppl.No.2, vol. 1(1964), = 0.534 B2043900100018 as thermal value. 2043900100019 DECAY-DATA (8-O-19,27.SEC) Half-life of O19 was assumed 27 sec. 2043900100020 STATUS Data taken from the publication. 2043900100021 ERR-ANALYS The possible sources of errors are discussed, 2043900100022 quadratic combination of all errors gives the overall 2043900100023 error of +- 5 per cent in the cross section. 2043900100024 HISTORY (19710804C) 2043900100025 (19751126E) 2043900100026 (20061213A) Date is corrected. Corrections made after 2043900100027 N.Ohtsuka remarks: EN-DUMMY moved to new SAN 005 2043900100028 (20061213U) Last checking has been done. 2043900100029 ENDBIB 27 0 2043900100030 COMMON 2 3 2043900100031 MONIT ERR-T 2043900100032 B PER-CENT 2043900100033 0.534 5. 2043900100034 ENDCOMMON 3 0 2043900100035 ENDSUBENT 34 0 2043900199999 SUBENT 20439002 20061213 21812043900200001 BIB 3 10 2043900200002 REACTION (8-O-18(N,G)8-O-19,,SIG) 2043900200003 ANALYSIS Thermal cross-section was derived from the effective 2043900200004 cross-section ( = (1.7 +- 0.1) * e-4 barn), using the 2043900200005 following parameters which were experimentally 2043900200006 determined, 2043900200007 the spectral index r = (1.51 +- 0.08) * e-2, 2043900200008 the Westcott value s = 5.31, 2043900200009 and the correction factor for deviation from the 1/V 2043900200010 law was set equal to 1. 2043900200011 STATUS (DEP,20439005) 2043900200012 ENDBIB 10 0 2043900200013 NOCOMMON 0 0 2043900200014 DATA 3 1 2043900200015 EN DATA DATA-ERR 2043900200016 MEV B B 2043900200017 2.53E-08 1.6E-04 1.E-05 2043900200018 ENDDATA 3 0 2043900200019 ENDSUBENT 18 0 2043900299999 SUBENT 20439003 20061213 21812043900300001 BIB 4 7 2043900300002 REACTION (8-O-18(N,G)8-O-19,,RI) 2043900300003 COMMENT The resonance integral = (excess resonance integral) +2043900300004 (1/V part of the cross-section curve), 2043900300005 (excess resonance integral) = 7.43e-4 barn. 2043900300006 STATUS (DEP,20439004) 2043900300007 HISTORY (20061213A) E-min added to data section 2043900300008 (20061213U) Last checking has been done. 2043900300009 ENDBIB 7 0 2043900300010 NOCOMMON 0 0 2043900300011 DATA 3 1 2043900300012 EN-MIN DATA DATA-ERR 2043900300013 EV B B 2043900300014 0.5 8.1E-04 4.E-05 2043900300015 ENDDATA 3 0 2043900300016 ENDSUBENT 15 0 2043900399999 SUBENT 20439004 20061213 21812043900400001 BIB 2 4 2043900400002 REACTION (8-O-18(N,G)8-O-19,,RI,,RNV) Non-1/V part of the 2043900400003 resonance integral 2043900400004 HISTORY (20061213C) SM 2043900400005 (20061213U) Last checking has been done. 2043900400006 ENDBIB 4 0 2043900400007 NOCOMMON 0 0 2043900400008 DATA 3 1 2043900400009 EN-MIN DATA DATA-ERR 2043900400010 EV B B 2043900400011 0.5 7.4E-04 4.E-05 2043900400012 ENDDATA 3 0 2043900400013 ENDSUBENT 12 0 2043900499999 SUBENT 20439005 20061213 21812043900500001 BIB 3 4 2043900500002 REACTION (8-O-18(N,G)8-O-19,,SIG,,MXW) 2043900500003 INC-SPECT .Assumed Maxwell neutron energy distribution 2043900500004 HISTORY (20061213C) SM 2043900500005 (20061213U) Last checking has been done. 2043900500006 ENDBIB 4 0 2043900500007 NOCOMMON 0 0 2043900500008 DATA 3 1 2043900500009 EN-DUMMY DATA DATA-ERR 2043900500010 MEV B B 2043900500011 2.53E-08 1.7E-04 1.E-05 2043900500012 ENDDATA 3 0 2043900500013 ENDSUBENT 12 0 2043900599999 ENDENTRY 5 0 2043999999999