ENTRY 22145 20210820 23032214500000001 SUBENT 22145001 20210820 23032214500100001 BIB 14 63 2214500100002 TITLE Stellar krypton cross sections at kT = 25 and 52 keV 2214500100003 AUTHOR (F.Kaeppeler,A.A.Naqvi,M.Al-Ohali) 2214500100004 REFERENCE (J,PR/C,35,936,1987) 2214500100005 (R,INDC(GER)-0053,2021) Revised values of Karlsruhe 2214500100006 cross sections. 2214500100007 REL-REF (M,,H.Beer+,J,PR/C,21,534,1980) description of 2214500100008 p-Li7 inc-source 2214500100009 INSTITUTE (2GERKFK) F.K. and experimental site 2214500100010 (3SARDHA) A.A.N., M.A.-O. 2214500100011 FACILITY (VDG,2GERKFK) 3.75MV pulsed 1 MHz rate, with 18 ns 2214500100012 width and 2 muA beam current during 52 keV spectrum 2214500100013 measurements 2214500100014 INC-SOURCE (P-LI7) Used for approximation to Maxwellian 2214500100015 kT = 25 keV shape. 1.911 MeV protons on metallic Li-7 2214500100016 layer with copper backing of 0.5 mm. Kinematically 2214500100017 collimated neutron beam forming a 120 degree cone. 2214500100018 Maximum neutron energy of 106 keV. Neutron scattering 2214500100019 on the Cu backing was neglected with uncertainty 2214500100020 estimated at less than 0.2%. 2214500100021 (P-T) Used for approximation to Maxwellian kT = 52keV 2214500100022 shape. 1099 keV protons on tritium loaded titanium 2214500100023 layers (1.0 mg/cm2) evaporated on 0.3 mm thick 2214500100024 tungsten disk, covered by a aluminium layer of 2214500100025 50 ug/cm2. Specific target activity was 3.0E10 bq/cm2.2214500100026 Cooling water flows in 0.8 mm gap between W backing 2214500100027 and 0.1 mm outer stainless steel window. 2214500100028 Kinematically collimated neutron beam forming 2214500100029 120 degree cone. Max neutron energy 225 keV for 2214500100030 kT = 52 keV. Transmission of target at 30 keV only 2214500100031 89% owing to n-p scattering in cooling water 2214500100032 leading to additional uncertainty in cross section 2214500100033 measurement. 2214500100034 INC-SPECT The neutron spectra are closely approximated to max- 2214500100035 wellian shapes with temperatures of 25 and 52 keV. 2214500100036 METHOD (ACTIV) 2214500100037 DETECTOR (GELI) 1.6 keV resolution at E-gamma = 514 keV. 2214500100038 SAMPLE Natural and enriched Kr trapped in zeolite 5A crystal 2214500100039 lattice, typically 50 cm3 krypton per gram zeolite, 2214500100040 sandwiched between gold foils of same diameter 6 mm. 2214500100041 CORRECTION Gamma-ray self absorption in sample, background, 2214500100042 Ge(Li) detector efficiency, neutron flux dispersion 2214500100043 and multiple scattering, irradiation history, 2214500100044 deviation of flux from Maxwellian shape. 2214500100045 ERR-ANALYS (ERR-T) Total error 2214500100046 Systematic error includes: 2214500100047 (ERR-1,,3.) Uncertainty in activation via scattered 2214500100048 neutrons <3% 2214500100049 (ERR-2,2.8,7.1) Uncertainty in neutron flux dispersion2214500100050 including neutron multiple scattering and 2214500100051 self absorption 2.8-7.1% 2214500100052 (ERR-3,,2.) Uncertainty in irradiation history <2% 2214500100053 (ERR-4,,2.) Uncertainty in deviation of neutron 2214500100054 spectrum from Maxwellian shape <2% 2214500100055 (ERR-5,3.,6.) Uncertainty in absolute gamma-ray 2214500100056 intensity per decay 3-6% 2214500100057 (ERR-6) Uncertainty in Ge(Li) efficiency 2% 2214500100058 (ERR-7,,1.) Uncertainty in gamma ray self absorption 2214500100059 in sample <1% 2214500100060 HISTORY (19900525C) S.W. 2214500100061 (19910716A) S.W. Critique added 2214500100062 (20210820A) SD:Updated to new date formats,lower case. 2214500100063 BIB updated. Subents 002-004 were split; Subents 005- 2214500100064 011 added. CRITIQUE deleted. 2214500100065 ENDBIB 63 0 2214500100066 COMMON 1 3 2214500100067 ERR-6 2214500100068 PER-CENT 2214500100069 2. 2214500100070 ENDCOMMON 3 0 2214500100071 ENDSUBENT 70 0 2214500199999 SUBENT 22145002 20210820 23032214500200001 BIB 9 19 2214500200002 REACTION (36-KR-84(N,G)36-KR-85-M,,SIG,,SPA) 2214500200003 DECAY-DATA (36-KR-85-M,4.48HR,DG,151.,0.753, 2214500200004 DG,305.,0.14) 2214500200005 MONITOR (79-AU-197(N,G)79-AU-198,,SIG,,MXW) 2214500200006 DECAY-MON (79-AU-198-G,2.696D,DG,412.,0.955) 2214500200007 MONIT-REF (,Z.Y.Bao+,J,AND,36,411,1987) For c.s. at kT = 30 keV. 2214500200008 Values at kT = 25 and 52 keV were calculated from the 2214500200009 differential cross sections of Macklin (priv.com.,1982)2214500200010 normalized to the kT =30 keV value. 2214500200011 REL-REF (R,,R.L.Macklin,W,MACKLIN,1982) 2214500200012 ERR-ANALYS (ERR-SYS) Systematic error includes ERR-1 - ERR-7 and 2214500200013 (ERR-S) Counting statistics 2214500200014 (MONIT-ERR) Uncertainty in Au standard cross section 2214500200015 STATUS (TABLE) Tbl.V from Phys.Rev.,35(1987)936 2214500200016 (SPSDD,22145008) 2214500200017 HISTORY (19900525C) S.W. 2214500200018 (20210820A) SD: Subent split in two. Part of data 2214500200019 moved to Subent 005. SF8=MXW -> SPA in REACTION code. 2214500200020 BIB updated. Subent superseded. ERR-1 -> ERR-SYS. 2214500200021 ENDBIB 19 0 2214500200022 NOCOMMON 0 0 2214500200023 DATA 7 2 2214500200024 KT-DUMMY DATA ERR-T ERR-S ERR-SYS MONIT 2214500200025 MONIT-ERR 2214500200026 KEV MB MB PER-CENT PER-CENT MB 2214500200027 MB 2214500200028 25. 19.3 1.3 1.6 6.5 619.2214500200029 22. 2214500200030 52. 10.7 0.9 3.6 8.6 431.2214500200031 15. 2214500200032 ENDDATA 8 0 2214500200033 ENDSUBENT 32 0 2214500299999 SUBENT 22145003 20210820 23032214500300001 BIB 9 18 2214500300002 REACTION (36-KR-86(N,G)36-KR-87,,SIG,,SPA) 2214500300003 DECAY-DATA (36-KR-87,76.3MIN,DG,403.,0.50) 2214500300004 MONITOR (79-AU-197(N,G)79-AU-198,,SIG,,MXW) 2214500300005 DECAY-MON (79-AU-198-G,2.696D,DG,412.,0.955) 2214500300006 MONIT-REF (,Z.Y.Bao+,J,AND,36,411,1987) For c.s. at kT = 30 keV.2214500300007 Values at kT = 25 and 52 keV were calculated from the 2214500300008 differential cross sections of Macklin (priv.com.,1982)2214500300009 normalized to the kT =30 keV value. 2214500300010 REL-REF (R,,R.L.Macklin,W,MACKLIN,1982) 2214500300011 ERR-ANALYS (ERR-SYS) Systematic error includes ERR-1 - ERR-7 and 2214500300012 (ERR-S) Counting statistics 2214500300013 (MONIT-ERR) Uncertainty in Au standard cross section 2214500300014 STATUS (TABLE) Tbl.V from Phys.Rev.,35(1987)936 2214500300015 (SPSDD,22145009) 2214500300016 HISTORY (19900525C) S.W. 2214500300017 (20210820A) SD: Subent split in two. Part of data 2214500300018 moved to Subent 006. SF8=MXW -> SPA in REACTION code. 2214500300019 BIB updated. Subent superseded. ERR-1 -> ERR-SYS. 2214500300020 ENDBIB 18 0 2214500300021 NOCOMMON 0 0 2214500300022 DATA 7 2 2214500300023 KT-DUMMY DATA ERR-T ERR-S ERR-SYS MONIT 2214500300024 MONIT-ERR 2214500300025 KEV MB MB PER-CENT PER-CENT MB 2214500300026 MB 2214500300027 25. 3.58 0.3 2.3 8.6 619.2214500300028 22. 2214500300029 52. 3.3 0.5 8.7 11.7 431.2214500300030 15. 2214500300031 ENDDATA 8 0 2214500300032 ENDSUBENT 31 0 2214500399999 SUBENT 22145004 20210820 23032214500400001 BIB 5 9 2214500400002 REACTION (36-KR-84(N,G)36-KR-85-M/T,,SIG/RAT,,SPA) 2214500400003 DECAY-DATA (36-KR-85-M,4.48HR,DG,151.,0.753, 2214500400004 DG,305.,0.14) 2214500400005 ERR-ANALYS (ERR-S,0.4,8.7) Counting statistics 0.4-8.7% 2214500400006 STATUS (TABLE) Text on p.940 from Phys.Rev.,35(1987)936 2214500400007 HISTORY (19900525C) S.W. 2214500400008 (20210820A) SD: Subent split in two. Part of data 2214500400009 moved to Subent 007. SF8=MXW -> SPA in REACTION code. 2214500400010 BIB updated. 2214500400011 ENDBIB 9 0 2214500400012 COMMON 1 3 2214500400013 ERR-T 2214500400014 NO-DIM 2214500400015 0.06 2214500400016 ENDCOMMON 3 0 2214500400017 DATA 2 2 2214500400018 KT-DUMMY DATA 2214500400019 KEV NO-DIM 2214500400020 25. 0.49 2214500400021 52. 0.42 2214500400022 ENDDATA 4 0 2214500400023 ENDSUBENT 22 0 2214500499999 SUBENT 22145005 20210820 23032214500500001 BIB 6 12 2214500500002 REACTION (36-KR-84(N,G)36-KR-85-M,,SIG,,MXW,DERIV) 2214500500003 DECAY-DATA (36-KR-85-M,4.48HR,DG,151.,0.753, 2214500500004 DG,305.,0.14) 2214500500005 ANALYSIS Interpolated from data at kT = 25 and 52 keV, 2214500500006 the error includes an additional 3% from the 2214500500007 interpolation. 2214500500008 ERR-ANALYS (ERR-8) Uncertainty due to interpolation 2214500500009 STATUS (TABLE) Tbl.VI from Phys.Rev.,35(1987)936 2214500500010 (DEP,22145002) Spectrum average cross sections for 2214500500011 the experimental neutron spectrum 2214500500012 (SPSDD,22145011) 2214500500013 HISTORY (20210827T) SD: Part of data from Subent 002. 2214500500014 ENDBIB 12 0 2214500500015 NOCOMMON 0 0 2214500500016 DATA 4 1 2214500500017 KT DATA ERR-T ERR-8 2214500500018 KEV MB MB PER-CENT 2214500500019 30. 16.7 1.2 3. 2214500500020 ENDDATA 3 0 2214500500021 ENDSUBENT 20 0 2214500599999 SUBENT 22145006 20210820 23032214500600001 BIB 6 11 2214500600002 REACTION (36-KR-86(N,G)36-KR-87,,SIG,,MXW,DERIV) 2214500600003 DECAY-DATA (36-KR-87,76.3MIN,DG,403.,0.50) 2214500600004 ANALYSIS Interpolated from data at kT = 25 and 52 keV, 2214500600005 the error includes an additional 3% from the 2214500600006 interpolation. 2214500600007 ERR-ANALYS (ERR-8) Uncertainty due to interpolation 2214500600008 STATUS (TABLE) Tbl.VI from Phys.Rev.,35(1987)936 2214500600009 (DEP,22145003) Spectrum average cross sections for 2214500600010 the experimental neutron spectrum 2214500600011 (SPSDD,22145012) 2214500600012 HISTORY (20210827T) SD: Part of data from Subent 003. 2214500600013 ENDBIB 11 0 2214500600014 NOCOMMON 0 0 2214500600015 DATA 4 1 2214500600016 KT DATA ERR-T ERR-8 2214500600017 KEV MB MB PER-CENT 2214500600018 30. 3.5 0.3 3. 2214500600019 ENDDATA 3 0 2214500600020 ENDSUBENT 19 0 2214500699999 SUBENT 22145007 20210820 23032214500700001 BIB 5 8 2214500700002 REACTION (36-KR-84(N,G)36-KR-85-M/T,,SIG/RAT,,MXW,DERIV) 2214500700003 DECAY-DATA (36-KR-85-M,4.48HR,DG,151.,0.753, 2214500700004 DG,305.,0.14) 2214500700005 ANALYSIS Interpolated from data at kT = 25 and 52 keV, 2214500700006 the error includes an additional 3% from the 2214500700007 interpolation. 2214500700008 STATUS (TABLE) Tbl.VI from Phys.Rev.,35(1987)936 2214500700009 HISTORY (20210827T) SD: Part of data from Subent 004. 2214500700010 ENDBIB 8 0 2214500700011 NOCOMMON 0 0 2214500700012 DATA 3 1 2214500700013 KT DATA ERR-T 2214500700014 KEV NO-DIM NO-DIM 2214500700015 30. 0.48 0.06 2214500700016 ENDDATA 3 0 2214500700017 ENDSUBENT 16 0 2214500799999 SUBENT 22145008 20210820 23032214500800001 BIB 8 13 2214500800002 REACTION 1((36-KR-84(N,G)36-KR-85-M,,SIG,,SPA)/ 2214500800003 (79-AU-197(N,G)79-AU-198,,SIG,,SPA)) 2214500800004 2(36-KR-84(N,G)36-KR-85-M,,SIG,,SPA) 2214500800005 DECAY-DATA (36-KR-85-M,4.48HR,DG,151.,0.753, 2214500800006 DG,305.,0.14) 2214500800007 MONITOR (79-AU-197(N,G)79-AU-198,,SIG,,MXW) 2214500800008 DECAY-MON (79-AU-198-G,3881.0MIN,DG,411.80,0.9558) 2214500800009 MONIT-REF (,R.Reifarth+,J,EPJ/P,133,424,2018) 2214500800010 ANALYSIS Cross section value in subentry 22145.002 is 2214500800011 renormalized for new gold cross section. 2214500800012 Correction for revised gold standard 681/619 =1.100 2214500800013 STATUS (TABLE) Data from p.49 of INDC(GER)-0053. 2214500800014 HISTORY (20210827C) SD 2214500800015 ENDBIB 13 0 2214500800016 NOCOMMON 0 0 2214500800017 DATA 7 2 2214500800018 KT-DUMMY DATA 2ERR-T 2DATA 1ERR-T 1MONIT 2214500800019 MONIT-ERR 2214500800020 KEV MB MB NO-DIM NO-DIM MB 2214500800021 MB 2214500800022 25. 21.2 1.2 0.0312 0.0021 681.2214500800023 7. 2214500800024 52. 11.8 0.91 474.2214500800025 5. 2214500800026 ENDDATA 8 0 2214500800027 ENDSUBENT 26 0 2214500899999 SUBENT 22145009 20210820 23032214500900001 BIB 8 12 2214500900002 REACTION 1((36-KR-86(N,G)36-KR-87,,SIG,,SPA)/ 2214500900003 (36-KR-86(N,G)36-KR-87,,SIG,,SPA)) 2214500900004 2(36-KR-84(N,G)36-KR-85-M,,SIG,,SPA) 2214500900005 DECAY-DATA (36-KR-87,76.3MIN,DG,403.,0.50) 2214500900006 MONITOR (79-AU-197(N,G)79-AU-198,,SIG,,MXW) 2214500900007 DECAY-MON (79-AU-198-G,3881.0MIN,DG,411.80,0.9558) 2214500900008 MONIT-REF (,R.Reifarth+,J,EPJ/P,133,424,2018) 2214500900009 ANALYSIS Cross section value in subentry 22145.003 is 2214500900010 renormalized for new gold cross section. 2214500900011 Correction for revised gold standard 681/619 =1.100 2214500900012 STATUS (TABLE) Data from p.51 of INDC(GER)-0053 2214500900013 HISTORY (20210827C) SD 2214500900014 ENDBIB 12 0 2214500900015 NOCOMMON 0 0 2214500900016 DATA 7 2 2214500900017 KT-DUMMY DATA 2ERR-T 2DATA 1ERR-T 1MONIT 2214500900018 MONIT-ERR 2214500900019 KEV MB MB NO-DIM NO-DIM MB 2214500900020 MB 2214500900021 25. 3.94 0.3 0.00578 0.00048 681.2214500900022 7. 2214500900023 52. 3.63 0.54 474.2214500900024 5. 2214500900025 ENDDATA 8 0 2214500900026 ENDSUBENT 25 0 2214500999999 SUBENT 22145010 20210820 23032214501000001 BIB 5 8 2214501000002 REACTION (36-KR-84(N,G)36-KR-85-M,,SIG,,MXW,DERIV) 2214501000003 DECAY-DATA (36-KR-85-M,4.48HR,DG,151.,0.753, 2214501000004 DG,305.,0.14) 2214501000005 ANALYSIS Cross section value in subentry 22145.005 is 2214501000006 renormalized for new gold cross section. 2214501000007 STATUS (TABLE) Data from p.50 of INDC(GER)-0053. 2214501000008 (DEP,22145008) Spectrum averaged cross section 2214501000009 HISTORY (20210827C) SD 2214501000010 ENDBIB 8 0 2214501000011 NOCOMMON 0 0 2214501000012 DATA 3 1 2214501000013 KT DATA ERR-T 2214501000014 KEV MB MB 2214501000015 30. 18.4 1.2 2214501000016 ENDDATA 3 0 2214501000017 ENDSUBENT 16 0 2214501099999 SUBENT 22145011 20210820 23032214501100001 BIB 4 5 2214501100002 REACTION (36-KR-86(N,G)36-KR-87,,SIG,,MXW,DERIV) 2214501100003 DECAY-DATA (36-KR-87,76.3MIN,DG,403.,0.50) 2214501100004 STATUS (TABLE) Data from p.52 of INDC(GER)-0053. 2214501100005 (DEP,22145009) Spectrum average cross section 2214501100006 HISTORY (20210827C) SD 2214501100007 ENDBIB 5 0 2214501100008 NOCOMMON 0 0 2214501100009 DATA 3 1 2214501100010 KT DATA ERR-T 2214501100011 KEV MB MB 2214501100012 30. 3.5 0.3 2214501100013 ENDDATA 3 0 2214501100014 ENDSUBENT 13 0 2214501199999 ENDENTRY 11 0 2214599999999