ENTRY 22009 20161030 22552200900000001 SUBENT 22009001 20161030 22552200900100001 BIB 16 42 2200900100002 REFERENCE (J,AAA,162,330,1986) 2200900100003 ((P,NEANDC(E)-272U,(5),8,198606)= 2200900100004 (P,INDC(GER)-29,8,1986)) 2200900100005 Prelim.data in Table. 2200900100006 TITLE A measurement of the La-139 capture cross section 2200900100007 and a study of the s-process at magic neutron 2200900100008 number 82. 2200900100009 AUTHOR (H.Beer) 2200900100010 INSTITUTE (2GERKFK) 2200900100011 FACILITY (VDG,2GERKFK) KFK 3.75 MV Van De Graaff accelerator. 2200900100012 METHOD (ACTIV) Activation technique. 2200900100013 INC-SOURCE (P-LI7) Proton energy 1911 keV. 2200900100014 INC-SPECT Good approximated by Maxwellian of kT=25 keV . 2200900100015 MONITOR (79-AU-197(N,G)79-AU-198,,SIG,,MXW) Maxwellian 2200900100016 average capture cross section. 2200900100017 DECAY-MON (79-AU-198-G,2.6935D,DG,412.,.955) 95.5+-0.1 % 2200900100018 MONIT-REF (,R.L.Macklin,W,MACKLIN,1982) 2200900100019 SAMPLE Samples were attached to the water cooled neutron 2200900100020 target. Samples were sandwiched between two gold 2200900100021 foils. 2200900100022 Sample thickness: La - 2.60E-4 at/b, Au - 1.14E-4 at/b 2200900100023 DETECTOR (GLASD) Li-6 glass detector to monitor neutron beam. 2200900100024 Placed on the beam axis at 70 cm distance from the 2200900100025 neutron source. 2200900100026 (GE) Ge detector of 45 cm3 volume, 1.6keV energy 2200900100027 resolution at 1.33 MeV was used to count the induced 2200900100028 activities of the samples. 2200900100029 CORRECTION For gamma-ray self-absorption. 2200900100030 For decay during irradiation including the time 2200900100031 dependence of neutron yield. 2200900100032 STATUS .Data were taken from main ref. 2200900100033 HISTORY (19861125C) NO. 2200900100034 (19861212E) 2200900100035 (19870825U) IF. 2200900100036 (19870827E) 2200900100037 (20161030A) M.M. Upper -> lower case correction. 2200900100038 Dates were corrected for 4-digits year. 2200900100039 Ref. J,AAA,162,330,1986 was added. 2200900100040 BIB information was updated. 2200900100041 SAMPLE,DETECTOR,ERR-ANALYS were added. 2200900100042 MONIT-ERR: 16. -> 20. mb as given in AAA,162,330,1986 2200900100043 Subent 002 was added 2200900100044 ENDBIB 42 0 2200900100045 COMMON 3 3 2200900100046 MONIT MONIT-ERR KT-NRM 2200900100047 MB MB KEV 2200900100048 657. 20. 25. 2200900100049 ENDCOMMON 3 0 2200900100050 ENDSUBENT 49 0 2200900199999 SUBENT 22009002 20161030 22552200900200001 BIB 5 22 2200900200002 REACTION (57-LA-139(N,G)57-LA-140,,SIG,,MXW) Maxwellian 2200900200003 DECAY-DATA (57-LA-140,40.272HR,DG,1596.,.955) 95.5+-0.3 % 2200900200004 ERR-ANALYS (ERR-T) Total error. 2200900200005 Sources of uncertainty: 2200900200006 (ERR-1) Au standard 2200900200007 (ERR-2) Gamma-ray intensity per decay 2200900200008 (ERR-3) Ge detector efficiency 2200900200009 (ERR-4,,0.1) Gamma-ray self-absorption 2200900200010 (ERR-5,,1.) Activation via scattered neutrons 2200900200011 (ERR-6) Neutron flux dispersion 2200900200012 (ERR-7) Deviation of flux distribution from Maxwellian 2200900200013 (ERR-8,,2.) Irradiation history. 2200900200014 STATUS (TABLE) Text, page 331 of J,AAA,162,330,1986 . 2200900200015 In P,NEANDC(E)-272U,(5),8,1986 - kT=23.4kev, DATA and 2200900200016 DATA-ERR values are the same as in AAA,162,330,1986 2200900200017 HISTORY (19861125C) NO. 2200900200018 (19861212E) 2200900200019 (19870605U) IF. 2200900200020 (19870825U) IF. 2200900200021 (19870827E) 2200900200022 (20161030A) M.M. kT was changed 23.4 -> 25.keV as given2200900200023 in J,AAA,162,330,1986 . 2200900200024 ENDBIB 22 0 2200900200025 COMMON 5 3 2200900200026 ERR-1 ERR-2 ERR-3 ERR-6 ERR-7 2200900200027 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2200900200028 3. 0.3 2. 3. 3. 2200900200029 ENDCOMMON 3 0 2200900200030 DATA 3 1 2200900200031 KT DATA ERR-T 2200900200032 KEV MB MB 2200900200033 25. 44.1 2.9 2200900200034 ENDDATA 3 0 2200900200035 ENDSUBENT 34 0 2200900299999 SUBENT 22009003 20161030 22552200900300001 BIB 7 27 2200900300002 REACTION (57-LA-139(N,G)57-LA-140,,SIG,,MXW) Maxwellian 2200900300003 REL-REF (A,11399001,R.L.Macklin+,J,PR,107,504,1957) 45+-6 mb 2200900300004 Agree within uncertainties. 2200900300005 (D,30384001,A.R.Musgrove+,J,AUJ,30,599,1977) 54+-5 mb 2200900300006 Higher. 2200900300007 ERR-ANALYS (ERR-T) Total error. 2200900300008 Sources of uncertainty: 2200900300009 (ERR-1) Au standard 2200900300010 (ERR-2) Gamma-ray intensity per decay 2200900300011 (ERR-3) Ge detector efficiency 2200900300012 (ERR-4,,0.1) Gamma-ray self-absorption 2200900300013 (ERR-5,,1.) Activation via scattered neutrons 2200900300014 (ERR-6) Neutron flux dispersion 2200900300015 (ERR-7) Deviation of flux distribution from Maxwellian 2200900300016 (ERR-8,,2.) Irradiation history. 2200900300017 Uncertainty of extrapolation is not mentioned in the 2200900300018 article. 2200900300019 ANALYSIS Cross section value was derived by extrapolation of 2200900300020 measured cross section at kT=25keV to 30 keV assuming 2200900300021 temperature dependence proportional to 1/sqrt(k*T) 2200900300022 ADD-RES In Table 3 there are "Adopted values" for other 2200900300023 isotopes at kT=30 keV: 2200900300024 Ba-138 - 3.96+-0.23 mb, Ce-140 - 10.82+-0.53 mb, 2200900300025 Pr-141 - 119+-16 mb , Nd-142 - 46+-4 mb . 2200900300026 STATUS (TABLE) Table 3 of J,AAA,162,330,1986 2200900300027 (DEP,22009002) See ANALYSIS 2200900300028 HISTORY (20161030A) M.M. Subent was added. 2200900300029 ENDBIB 27 0 2200900300030 COMMON 5 3 2200900300031 ERR-1 ERR-2 ERR-3 ERR-6 ERR-7 2200900300032 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2200900300033 3. 0.3 2. 3. 3. 2200900300034 ENDCOMMON 3 0 2200900300035 DATA 3 1 2200900300036 KT DATA ERR-T 2200900300037 KEV MB MB 2200900300038 30. 38.4 2.7 2200900300039 ENDDATA 3 0 2200900300040 ENDSUBENT 39 0 2200900399999 ENDENTRY 3 0 2200999999999