ENTRY 22255 20210903 23032225500000001 SUBENT 22255001 20210903 23032225500100001 BIB 16 79 2225500100002 TITLE A measurement of the 22-Ne(n,gamma)23-Ne capture cross2225500100003 section at a stellar temperature of KT = 25 keV 2225500100004 AUTHOR (H.Beer, G.Rupp, F.Voss, F.Kaeppeler) 2225500100005 REFERENCE (J,AJ,379,420,1991) Main reference, data are given 2225500100006 (R,INDC(GER)-0053,2021) Revised values of Karlsruhe 2225500100007 cross sections. 2225500100008 INSTITUTE (2GERKFK) 2225500100009 FACILITY (VDG,2GERKFK) Pulsed 3.75 MV Van de Graaff 2225500100010 INC-SOURCE (P-LI7) Neutrons were produced near the threshold. 2225500100011 INC-SPECT The neutron spectrum was similar to a Maxwellian 2225500100012 spectrum with a temperature of 25 keV. 2225500100013 METHOD (ACTIV) Activation techniques. The Ne-22 capture cross 2225500100014 section was determined relative to the well-known 2225500100015 Au-197 cross section in two steps. In the first step 2225500100016 the Ne-22 activity was measured relative to five 2225500100017 different neutron capture reactions on Kr. In the 2225500100018 second step the same Kr-reactions were measured 2225500100019 relative to Au. 2225500100020 A fast cyclic activation system with a fast sample 2225500100021 changer was used. Both the irradiation and counting 2225500100022 phases were adjusted to be 38 sec. 2225500100023 DETECTOR (GELI) The activity was counted with a GeLi-detector, 2225500100024 with a relative efficiency of 28 percent and an energy2225500100025 resolution of 2.4 keV at 1.33 MeV. To obtain a fast 2225500100026 cyclic time, the detector was placed close to the 2225500100027 neutron generation. It was therefore heavily shielded.2225500100028 During the activity counting phase the neutron 2225500100029 generation was stopped by a proton beam stop in the 2225500100030 beam line. 2225500100031 (GLASD) The neutron flux was monitored by a Li-6 glass 2225500100032 scintillation counter. 2225500100033 MONITOR ((MONIT)79-AU-197(N,G)79-AU-198-G,,SIG,,MXW) 2225500100034 DECAY-MON (79-AU-198-G,2.694D,DG,411.8,.9552) 2225500100035 SAMPLE In the first step, four pressurized gas samples with 2225500100036 different mixtures and weights of neon gas, enriched 2225500100037 to 99.9% in Ne-22, and natural krypton gas were 2225500100038 used. The gas content of the four samples was 2225500100039 Ne-22, mg nat Kr, mg 2225500100040 193.76 127.38 2225500100041 250.36 210.88 2225500100042 157.43 178.91 2225500100043 136.10 155.51 2225500100044 the containers were stainless steel spheres, 20 mm in 2225500100045 diameter, 0.5 mm wall thickness. For background 2225500100046 determination, an empty stainless steel sphere was 2225500100047 used. In the second step, the Kr reactions were 2225500100048 measured relative to Au using zeolite tablets, 6 mm 2225500100049 in diameter, loaded with 52.7 cm3 Kr per gram of 2225500100050 sample, sandwiched between two Au foils of the same 2225500100051 diameter or an Au foil between two zeolite tablets. 2225500100052 The Au foils had a weight of 5 - 10 mg. Sixteen 2225500100053 individual runs of the various samples were performed.2225500100054 CORRECTION No details given. 2225500100055 ERR-ANALYS (ERR-T) The error includes contributions from 2225500100056 statistics, GeLi-detector efficiency, the Au-197 2225500100057 standard, gas sample weight, Kr weight in the zeolite,2225500100058 gamma-ray line intensities, gamma-ray attenuation, and2225500100059 neutron multiple scattering. 2225500100060 (ERR-S) Statistical error of 22-Ne/Kr value 2225500100061 (ERR-1) Statistical error of Kr/Au value 2225500100062 (ERR-2) Germanium detector efficiency error 2225500100063 (ERR-3) Gas sample weight error 2225500100064 (ERR-4) Krypton weight in zeolite error 2225500100065 (ERR-5) 23-Ne gamma-ray intensity error 2225500100066 (ERR-6) 198-Au gamma-ray intensity error 2225500100067 (ERR-7) Gamma-ray intensity attenuation in sample 2225500100068 error 2225500100069 (ERR-8,,1.) Max neutron multiple scattering error 2225500100070 COMMENT The quoted neutron energies refer to the lab system; 2225500100071 effective energies in the c.m. system have to be 2225500100072 reduced by 23/24 2225500100073 HISTORY (19940109C) N.O. 2225500100074 (20080529A) Date is corrected. Two new SUBENTS added 2225500100075 Last corrections have been done. 2225500100076 (20200803A) SD: DATA corrected in Subent 004. 2225500100077 PART-DET deleted. 2225500100078 (20201016A) SD: KT-NRM added to COMMON section. 2225500100079 (20210903A) SD: Corrections in all Subents. 2225500100080 Subents 005-008 added. 2225500100081 ENDBIB 79 0 2225500100082 COMMON 9 6 2225500100083 KT-NRM ERR-S ERR-1 ERR-2 ERR-3 ERR-4 2225500100084 ERR-5 ERR-6 ERR-7 2225500100085 KEV PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2225500100086 PER-CENT PER-CENT PER-CENT 2225500100087 25. 3.6 0.5 2. 5. 2.52225500100088 3.04 0.105 1.5 2225500100089 ENDCOMMON 6 0 2225500100090 ENDSUBENT 89 0 2225500199999 SUBENT 22255002 20210903 23032225500200001 BIB 7 12 2225500200002 REACTION (10-NE-22(N,G)10-NE-23,,SIG,,MXW/FCT) 2225500200003 DECAY-DATA (10-NE-23,38.SEC,DG,439.,.329) 2225500200004 ANALYSIS The datum given is the weighted average from the 2225500200005 comparisons with the different Kr-reactions. 2225500200006 MONIT-REF (22099003,W.Ratynski+,J,PR/C,37,595,1988) 2225500200007 ERR-ANALYS (MONIT-ERR) 197-Au standard error 2225500200008 STATUS (TABLE) Table 2 from Astroph.J.,379(1991)420 2225500200009 (DEP,22255003) 2225500200010 (SPSDD,22255005) Renormalized. 2225500200011 HISTORY (20080529A) BIB information added. Data units corrected2225500200012 (20210903A) SD: SF8=MXW -> MXW/FCT; SF9=DERIV deleted 2225500200013 from REACTION code. Superseded. 2225500200014 ENDBIB 12 0 2225500200015 NOCOMMON 0 0 2225500200016 DATA 5 1 2225500200017 KT DATA ERR-T MONIT MONIT-ERR 2225500200018 KEV MICRO-B MICRO-B MB MB 2225500200019 25. 66. 5. 648. 10. 2225500200020 ENDDATA 3 0 2225500200021 ENDSUBENT 20 0 2225500299999 SUBENT 22255003 20210903 23032225500300001 BIB 7 21 2225500300002 REACTION 1(10-NE-22(N,G)10-NE-23,,SIG,,MXW) 2225500300003 2(10-NE-22(N,G)10-NE-23,,SIG,,MXW) 2225500300004 3(10-NE-22(N,G)10-NE-23,,SIG,,MXW) 2225500300005 4(10-NE-22(N,G)10-NE-23,,SIG,,MXW) 2225500300006 5(10-NE-22(N,G)10-NE-23,,SIG,,MXW) 2225500300007 MONITOR 1(36-KR-78(N,G)36-KR-79-M,,SIG,,MXW) 2225500300008 2(36-KR-78(N,G)36-KR-79-G,,SIG,,MXW) 2225500300009 3(36-KR-80(N,G)36-KR-81-M,,SIG,,MXW) 2225500300010 4(36-KR-84(N,G)36-KR-85-M,,SIG,,MXW) 2225500300011 5(36-KR-86(N,G)36-KR-87,,SIG,,MXW) 2225500300012 DECAY-MON 1(36-KR-79-M,50.SEC,DG,129.9,0.27) 2225500300013 2(36-KR-79-G,34.9HR,DG,397.5,0.093) 2225500300014 3(36-KR-81-M,13.3SEC,DG,190.4,0.67,DG,151.) 2225500300015 4(36-KR-85-M,4.48HR,DG,304.9,0.14) 2225500300016 5(36-KR-87,1.272HR,DG,406.6,0.329) 2225500300017 MONIT-REF (22099003,W.Ratynski+,J,PR/C,37,595,1988) 2225500300018 ERR-ANALYS (MONIT-ERR) 197-Au standard error 2225500300019 STATUS (TABLE) Table 2 from Astroph.J.,379(1991)420 2225500300020 (SPSDD,22255006) Renormalized. 2225500300021 HISTORY (20080529C) SM 2225500300022 (20210903A) SD: BIB update. Subent superseded. 2225500300023 ENDBIB 21 0 2225500300024 NOCOMMON 0 0 2225500300025 DATA 13 1 2225500300026 KT DATA 1ERR-T 1DATA 2ERR-T 2DATA 32225500300027 ERR-T 3DATA 4ERR-T 4DATA 5ERR-T 5MONIT 2225500300028 MONIT-ERR 2225500300029 KEV MICRO-B MICRO-B MICRO-B MICRO-B MICRO-B 2225500300030 MICRO-B MICRO-B MICRO-B MICRO-B MICRO-B MB 2225500300031 PER-CENT 2225500300032 25. 65.2 6.2 75.2 6.9 63.62225500300033 4.0 68.3 4.5 68.0 4.3 648.2225500300034 1.5 2225500300035 ENDDATA 9 0 2225500300036 ENDSUBENT 35 0 2225500399999 SUBENT 22255004 20210903 23032225500400001 BIB 8 15 2225500400002 REACTION (10-NE-22(N,G)10-NE-23,,SIG,,MXW,DERIV) 2225500400003 DECAY-DATA (10-NE-23,38.SEC,DG,439.,.329) 2225500400004 ANALYSIS The data are obtained by extrapolation from the 2225500400005 data given for other energies 2225500400006 MONIT-REF (22099003,W.Ratynski+,J,PR/C,37,595,1988) 2225500400007 ERR-ANALYS (MONIT-ERR) 197-Au standard error 2225500400008 COMMENT Dr.F.Kaeppeler:'The thermal cross section is not an 2225500400009 experimental result and should be omitted.' 2225500400010 STATUS (TABLE) Text on p.422 of Astroph.J.,379(1991)420 2225500400011 (DEP,22255002) 2225500400012 (SPSDD,22255007) Renormalized. 2225500400013 HISTORY (20080529C) SM 2225500400014 (20200803A) SD: Value at En=2.5E-02 deleted according 2225500400015 to COMMENT. 2225500400016 (20210903A) SD: Superseded. 2225500400017 ENDBIB 15 0 2225500400018 NOCOMMON 0 0 2225500400019 DATA 5 1 2225500400020 KT DATA ERR-T MONIT MONIT-ERR 2225500400021 KEV MB MB MB PER-CENT 2225500400022 30. 0.053 0.0044 648. 1.5 2225500400023 ENDDATA 3 0 2225500400024 ENDSUBENT 23 0 2225500499999 SUBENT 22255005 20210903 23032225500500001 BIB 10 12 2225500500002 REACTION (10-NE-22(N,G)10-NE-23,,SIG,,MXW,DERIV) 2225500500003 DECAY-DATA (10-NE-23,38.SEC,DG,439.,.329) 2225500500004 DECAY-MON (79-AU-198-G,3881.0MIN,DG,411.80,0.9558) 2225500500005 MONIT-REF (,R.Reifarth+,J,EPJ/P,133,424,2018) 2225500500006 ANALYSIS Cross section value in subentry 22182.002 is 2225500500007 renormalized for new gold cross section 2225500500008 CORRECTION Correction for revised gold standard 681/648 =1.051 2225500500009 ERR-ANALYS (MONIT-ERR) 197-Au standard error 2225500500010 COMMENT Not directly measured 22Ne/197Au ratio 2225500500011 STATUS (TABLE) p.62 of INDC(GER)-0053 2225500500012 (DEP,22255006) 2225500500013 HISTORY (20210903C) SD 2225500500014 ENDBIB 12 0 2225500500015 NOCOMMON 0 0 2225500500016 DATA 5 1 2225500500017 KT DATA ERR-T MONIT MONIT-ERR 2225500500018 KEV MICRO-B MICRO-B MB PER-CENT 2225500500019 25. 69. 5. 681. 1. 2225500500020 ENDDATA 3 0 2225500500021 ENDSUBENT 20 0 2225500599999 SUBENT 22255006 20210903 23032225500600001 BIB 9 27 2225500600002 REACTION 1(10-NE-22(N,G)10-NE-23,,SIG,,MXW) 2225500600003 2(10-NE-22(N,G)10-NE-23,,SIG,,MXW) 2225500600004 3(10-NE-22(N,G)10-NE-23,,SIG,,MXW) 2225500600005 4(10-NE-22(N,G)10-NE-23,,SIG,,MXW) 2225500600006 5(10-NE-22(N,G)10-NE-23,,SIG,,MXW) 2225500600007 MONITOR 1(36-KR-78(N,G)36-KR-79-M,,SIG,,MXW) 2225500600008 2(36-KR-78(N,G)36-KR-79-G,,SIG,,MXW) 2225500600009 3(36-KR-80(N,G)36-KR-81-M,,SIG,,MXW) 2225500600010 4(36-KR-84(N,G)36-KR-85-M,,SIG,,MXW) 2225500600011 5(36-KR-86(N,G)36-KR-87,,SIG,,MXW) 2225500600012 DECAY-MON (79-AU-198-G,3881.0MIN,DG,411.80,0.9558) 2225500600013 1(36-KR-79-M,50.SEC,DG,129.9,0.27) 2225500600014 2(36-KR-79-G,34.9HR,DG,397.5,0.093) 2225500600015 3(36-KR-81-M,13.3SEC,DG,190.4,0.67,DG,151.) 2225500600016 4(36-KR-85-M,4.48HR,DG,304.9,0.14) 2225500600017 5(36-KR-87,1.272HR,DG,406.6,0.329) 2225500600018 ANALYSIS Cross section values in subentry 22182.003 is 2225500600019 renormalized for new gold cross section 2225500600020 MONIT-REF (,R.Reifarth+,J,EPJ/P,133,424,2018) 2225500600021 ERR-ANALYS (MONIT-ERR) 197-Au standard error 2225500600022 CORRECTION Correction for revised gold standard 681/648 =1.051 2225500600023 STATUS (TABLE) p.63-67 of INDC(GER)-0053 2225500600024 (DEP,22255007) Ratio to gold. (note: 2225500600025 006.1 depend on 007.1; 006.2 depend on 007.2; 2225500600026 006.3 depend on 007.3; 006.4 depend on 007.4; 2225500600027 006.5 depend on 007.5) 2225500600028 HISTORY (20210903C) SD 2225500600029 ENDBIB 27 0 2225500600030 NOCOMMON 0 0 2225500600031 DATA 13 1 2225500600032 KT DATA 1ERR-T 1DATA 2ERR-T 2DATA 32225500600033 ERR-T 3DATA 4ERR-T 4DATA 5ERR-T 5MONIT 2225500600034 MONIT-ERR 2225500600035 KEV MICRO-B MICRO-B MICRO-B MICRO-B MICRO-B 2225500600036 MICRO-B MICRO-B MICRO-B MICRO-B MICRO-B MB 2225500600037 PER-CENT 2225500600038 25. 68.3 6.3 68.5 6.5 66.82225500600039 4.1 71.8 4.7 71.5 4.5 681.2225500600040 1.0 2225500600041 ENDDATA 9 0 2225500600042 ENDSUBENT 41 0 2225500699999 SUBENT 22255007 20210903 23032225500700001 BIB 6 23 2225500700002 REACTION 1((10-NE-22(N,G)10-NE-23,,SIG,,MXW)/ 2225500700003 (79-AU-197(N,G)79-AU-198-G,,SIG,,MXW)) 2225500700004 2((10-NE-22(N,G)10-NE-23,,SIG,,MXW)/ 2225500700005 (79-AU-197(N,G)79-AU-198-G,,SIG,,MXW)) 2225500700006 3((10-NE-22(N,G)10-NE-23,,SIG,,MXW)/ 2225500700007 (79-AU-197(N,G)79-AU-198-G,,SIG,,MXW)) 2225500700008 4((10-NE-22(N,G)10-NE-23,,SIG,,MXW)/ 2225500700009 (79-AU-197(N,G)79-AU-198-G,,SIG,,MXW)) 2225500700010 5((10-NE-22(N,G)10-NE-23,,SIG,,MXW)/ 2225500700011 (79-AU-197(N,G)79-AU-198-G,,SIG,,MXW)) 2225500700012 MONITOR 1(36-KR-78(N,G)36-KR-79-M,,SIG,,MXW) 2225500700013 2(36-KR-78(N,G)36-KR-79-G,,SIG,,MXW) 2225500700014 3(36-KR-80(N,G)36-KR-81-M,,SIG,,MXW) 2225500700015 4(36-KR-84(N,G)36-KR-85-M,,SIG,,MXW) 2225500700016 5(36-KR-86(N,G)36-KR-87,,SIG,,MXW) 2225500700017 DECAY-DATA (79-AU-198-G,3881.0MIN,DG,411.80,0.9558) 2225500700018 DECAY-MON 1(36-KR-79-M,50.SEC,DG,129.9,0.27) 2225500700019 2(36-KR-79-G,34.9HR,DG,397.5,0.093) 2225500700020 3(36-KR-81-M,13.3SEC,DG,190.4,0.67,DG,151.) 2225500700021 4(36-KR-85-M,4.48HR,DG,304.9,0.14) 2225500700022 5(36-KR-87,1.272HR,DG,406.6,0.329) 2225500700023 STATUS (TABLE) p.63-67 of INDC(GER)-0053 2225500700024 HISTORY (20210903C) SD 2225500700025 ENDBIB 23 0 2225500700026 NOCOMMON 0 0 2225500700027 DATA 11 1 2225500700028 KT DATA 1ERR-T 1DATA 2ERR-T 2DATA 32225500700029 ERR-T 3DATA 4ERR-T 4DATA 5ERR-T 5 2225500700030 KEV NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM 2225500700031 NO-DIM NO-DIM NO-DIM NO-DIM NO-DIM 2225500700032 25. 1.006E-04 0.096E-04 1.006E-04 0.096E-04 0.9815E-042225500700033 0.062E-04 1.054E-04 0.069E-04 1.049E-04 0.066E-04 2225500700034 ENDDATA 6 0 2225500700035 ENDSUBENT 34 0 2225500799999 SUBENT 22255008 20210903 23032225500800001 BIB 7 9 2225500800002 REACTION (10-NE-22(N,G)10-NE-23,,SIG,,MXW,DERIV) 2225500800003 DECAY-DATA (10-NE-23,38.SEC,DG,439.,.329) 2225500800004 ANALYSIS The data are obtained by extrapolation from the 2225500800005 data given for other energies 2225500800006 MONIT-REF (,R.Reifarth+,J,EPJ/P,133,424,2018) 2225500800007 ERR-ANALYS (MONIT-ERR) 197-Au standard error 2225500800008 STATUS (TABLE) p.68 of INDC(GER)-0053 2225500800009 (DEP,22255006) 2225500800010 HISTORY (20210903C) SD 2225500800011 ENDBIB 9 0 2225500800012 NOCOMMON 0 0 2225500800013 DATA 5 1 2225500800014 KT DATA ERR-T MONIT MONIT-ERR 2225500800015 KEV MB MB MB PER-CENT 2225500800016 30. 0.056 0.0046 612. 1.0 2225500800017 ENDDATA 3 0 2225500800018 ENDSUBENT 17 0 2225500899999 ENDENTRY 8 0 2225599999999