ENTRY 22416 20211228 23072241600000001 SUBENT 22416001 20211228 23072241600100001 BIB 17 50 2241600100002 TITLE Direct neutron capture of 48Ca at kT=52 keV 2241600100003 AUTHOR (P.Mohr,H.Oberhummer,H.Beer,W.Rochow,V.Koelle, 2241600100004 G.Staudt,P.V.Sedyshev,Yu.P.Popov) 2241600100005 INSTITUTE (2AUSTHV) Mohr, Oberhummer 2241600100006 (2GERKFK) Beer 2241600100007 (2GERTUE) Rochow, Koelle, Staudt 2241600100008 (4ZZZDUB) Sedyshev, Popov 2241600100009 REFERENCE (J,PR/C,56,1154,1997) Main reference,data given 2241600100010 REL-REF (M,22371001,H.Beer+,J,PR/C,54,2014,1996) Experim.det. 2241600100011 (M,22306001,H.Beer+,J,NIM/A,337,492,1994) Experim.det. 2241600100012 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 2241600100013 DECAY-MON (79-AU-198-G,2.69D,DG,411.8,0.9550) 2241600100014 FACILITY (VDG,2GERTUE) 3.0 MV Van de Graaff accelerator ROSENAU 2241600100015 at the University Tuebingen 2241600100016 INC-SOURCE (P-T) Titanium-tritium target with a total activity 2241600100017 about 5 Ci, thickness of titanium layer is 150 keV 2241600100018 INC-SPECT Quasi-Maxwellian neutron energy spectrum with 2241600100019 kT=52 keV which is obtained by bombarding a thick 2241600100020 tritium target with protons at the energy 2241600100021 1091 keV - 72 keV above the T(p,n) theshold 1019 keV 2241600100022 COMMENT Experimental setup used fast activation technique 2241600100023 with fast transport of irradiated sample 2241600100024 METHOD (ACTIV) 2241600100025 DETECTOR (HPGE) Efficiency 98.6% 2241600100026 SAMPLE Two samples of powder Ca-C-O3 enriched by 77.87% in 2241600100027 48Ca with diameters 6 mm amd masses 48.83 and 49.06 mg2241600100028 ach sandwiched between two thin gold foils(16 mg 2241600100029 per foil), both samples and gold foils were put into 2241600100030 a cylindrical polyethilene container with an inner 2241600100031 diameter 6 mm 2241600100032 ERR-ANALYS (ERR-T) Total error 2241600100033 (ERR-S) Statistical error 2241600100034 (ERR-1,,5.) Uncertainty in neutron energy variations 2241600100035 due to tritium density changes in the target 2241600100036 (ERR-2) Uncertainty in enrichment of 48Ca in the 2241600100037 CaCO3 sample 2241600100038 (ERR-3,1.,10.) Uncertainty in gamma-branching ratios 2241600100039 (1% for the 3084.4 keV line, 10% for the 2241600100040 4071.9 keV line) 2241600100041 (ERR-4) Uncertainty in calculated efficiency of the 2241600100042 HPGe detector 2241600100043 (ERR-5) Uncertainty in monitoring of neutron flux 2241600100044 using the 6Li glass monitor 2241600100045 (ERR-6) Uncertainty in corrections of the divergence 2241600100046 of the neutron beam 2241600100047 (MONIT-ERR) Uncertainty in monitor cross section 2241600100048 STATUS (TABLE) Text on p.1156 of Phys.Rev.,C56(1997)1154 2241600100049 HISTORY (19991026C) + + Compiled by S.M. + + 2241600100050 (20211228A) SD:Updated to new date formats,lower case. 2241600100051 Corrections in all Subents. Author's name corrected. 2241600100052 ENDBIB 50 0 2241600100053 COMMON 5 3 2241600100054 ERR-S ERR-2 ERR-4 ERR-5 ERR-6 2241600100055 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2241600100056 1.5 2.4 3. 1. 2. 2241600100057 ENDCOMMON 3 0 2241600100058 ENDSUBENT 57 0 2241600199999 SUBENT 22416002 20211228 23072241600200001 BIB 3 3 2241600200002 REACTION (20-CA-48(N,G)20-CA-49,,SIG,,MXW) 2241600200003 DECAY-DATA (20-CA-49,8.718MIN,DG,3084.4,0.921,DG,4071.9,0.007) 2241600200004 HISTORY (20211228A) SD: MONIT/ERR added. 2241600200005 ENDBIB 3 0 2241600200006 NOCOMMON 0 0 2241600200007 DATA 5 1 2241600200008 EN-MEAN DATA ERR-T MONIT MONIT-ERR 2241600200009 KEV MICRO-B MICRO-B MB MB 2241600200010 78. 623. 47. 431. 15. 2241600200011 ENDDATA 3 0 2241600200012 ENDSUBENT 11 0 2241600299999 ENDENTRY 2 0 2241699999999