ENTRY 22846 20211007 23042284600000001 SUBENT 22846001 20211007 23042284600100001 BIB 19 81 2284600100002 TITLE Neutron capture studies on unstable 135Cs for 2284600100003 nucleosynthesis and transmutation 2284600100004 AUTHOR (N.Patronis, S.Dababneh, P.A.Assimakopoulos, R.Gallino,2284600100005 M.Heil, F.Kaeppeler, D.Karamanis, P.E.Koehler, 2284600100006 A.Mengoni, R.Plag) 2284600100007 INSTITUTE (2GRCIOA,2GERKFK,2ITYTUR,1USAORL,2ZZZCER) 2284600100008 REFERENCE (J,PR/C,69,025803,2004) 2284600100009 (R,INDC(GER)-0053,2021) Revised values of Karlsruhe 2284600100010 cross sections. 2284600100011 FACILITY (VDG,2GERKFK) 3.7 MV VdG (for 30+500 keV irradiations)2284600100012 (REAC,2GERMNZ) TRIGA reactor(to obtain number of 135Cs)2284600100013 INC-SOURCE (P-LI7) Li (30 um for En~30 keV and 10 um for 2284600100014 En~500 keV, 6 mm in diam.) evaporated on to a 1.0 mm 2284600100015 thick Cu backing irradiated by proton beam 2284600100016 (Ep=1892 keV for En~30 keV, Ep=2284 keV for 2284600100017 En~500 keV) typically 90 to 100 uA. 2284600100018 (REAC) in 2GERMNZ 2284600100019 INC-SPECT Calculated from DDX of 7Li(p,n)7Be by using a code 2284600100020 NYIELD (NOT a quasi-Maxwellian spectrum) 2284600100021 Epithermal(En>0.4 eV)/thermal=4/70 at the irradiation 2284600100022 position 2284600100023 SAMPLE Cs sample (0.03 mm thick, 6 mm in diam., was specified 2284600100024 as 1.8E+15 135Cs atoms corresponding to a total mass 2284600100025 of ~400 ng) implanted in a graphite disc (0.1 mm 2284600100026 thick and 6 mm in diam.) and canned in a cylindrical 2284600100027 graphite box with 0.3 mm thick walls, which was 2284600100028 sandwiched between two Au foils. 2284600100029 The number of 135Cs was determined by reactor neutron 2284600100030 irradiation via the well-known thermal neutron 2284600100031 capture cross section (T.Katoh et al., 1997). 2284600100032 Au foils were replaced approximately every three days 2284600100033 because of the half-life of 198Au (2.7 d). 2284600100034 METHOD (ACTIV) Irradiation lasted for about two weeks 2284600100035 (GSPEC) Measurement of two weeks following irradiation 2284600100036 DETECTOR (HPGE) Two Clover-type HPGe (Ge crystal with ~50 mm in 2284600100037 diam. and ~70 mm long) with efficiency of 2284600100038 (1.069+/-0.017)E-01 for the 136Cs 818.5 keV line 2284600100039 (HPGE) 40 cm3 HPGe to measure Au and Re foils activity 2284600100040 with efficiency of (2.20+/-0.03)E-03 for the 198Au 2284600100041 412 keV line 2284600100042 (GLASD) Li-6 glass detector at 0 deg to monitor flux 2284600100043 variation at KFK VdG 2284600100044 MONITOR (79-AU-197(N,G)79-AU-198,,SIG,,SPA) 2284600100045 DECAY-MON (79-AU-198-G,2.6952D,DG,411.8,0.9558) 2284600100046 REL-REF (R,,J.F.Mughabghab,B,NEUT.CS 1B,,,1984) 2284600100047 Thermal data for 185,187Re(n,gamma) 2284600100048 (R,22342002,T.Katoh+,J,NST,34,431,1997) 2284600100049 135Cs(n-th,gamma) cross section = 8.3+/-0.3 barn 2284600100050 (R,22342004,T.Katoh+,J,NST,34,431,1997) 2284600100051 135Cs(n-th,gamma) resonance integral = 37.9+/-2.7 barn2284600100052 DECAY-DATA (55-CS-136-G,13.16D,DG,818.5,0.997) 2284600100053 ASSUMED Values adopted for analysis of thermal data: 2284600100054 135Cs(n,gamma)136Cs 2284600100055 sigma(n-th,gamma)=8.3+/-0.3 b, Ires=37.9+/-2.7 b 2284600100056 T1/2=13.16(3) d, Eg=818.5 keV, Ig=99.7(6)% 2284600100057 185Re(n,gamma)186Re 2284600100058 sigma(n-th,gamma)=112(2.0) b, Ires=1717(50) b 2284600100059 T1/2=3.7183(11) d, Eg=137.2 keV, Ig=9.42(6)% 2284600100060 187Re(n,gamma)188g+mRe 2284600100061 sigma(n-th,gamma)=76.4(10) b, Ires=300(20) b 2284600100062 T1/2=17.0040(22) h, Eg=155.0 keV, Ig=15.61(18)% 2284600100063 187Re(n,gamma)188mRe 2284600100064 sigma(n-th,gamma)=2.8(1) b, 2284600100065 T1/2=18.59(4) min. 2284600100066 CORRECTION Data are corrected for 2284600100067 - self-attenuation 2284600100068 - dead time 2284600100069 - difference of neutron flux at Au and Cs foil position2284600100070 - decay during irradiation 2284600100071 - time variation in neutron flux 2284600100072 ADD-RES (DECAY) T1/2(136Cs)=13.04+/-0.03 d (818.5 keV line), 2284600100073 =13.04+/-0.04 d (1048 keV line). 2284600100074 STATUS (APRVD) Approved by Franz Kaeppeler (2014-09-09) 2284600100075 HISTORY (20041206C) SM 2284600100076 (20101105A) SD: DOI for Phys.Rev. added. Author's name 2284600100077 corrected. ERR-1 deleted from COMMON 2284600100078 (20130112A) SD: EN-MEAN -> KT in Subent 6. Subents 7-102284600100079 were deleted (No data measured in this experiment). 2284600100080 (20140828A) On.001-004,006 revised. 005 moved to 22448.2284600100081 (20211007A) SD: Corrections in all Subents. 2284600100082 Subents 011-017 added. 2284600100083 ENDBIB 81 0 2284600100084 NOCOMMON 0 0 2284600100085 ENDSUBENT 84 0 2284600199999 SUBENT 22846002 20211007 23042284600200001 BIB 5 18 2284600200002 REACTION (55-CS-135(N,G)55-CS-136,,SIG,,SPA) 2284600200003 REL-REF (R,22099002,W.Ratynski+,J,PR/C,37,595,1988) 2284600200004 Spectrum averaged cross section to renormalize 2284600200005 the ENDF/B-VI 197Au(n,g)198Au cross section 2284600200006 ENDF/B-VI cross section renormalized by a factor 2284600200007 0.958 to reproduce Ratynski et al. (1988). 2284600200008 ERR-ANALYS (ERR-1) Measurement of fast flux (3.2%) 2284600200009 (ERR-2) 135Cs thermal capture cross section (3.6%) 2284600200010 (ERR-3) 135Cs effect of resonance integral (0.1%) 2284600200011 (ERR-4) Measurement of thermal flux (2.1%) 2284600200012 (ERR-5,,0.5) Time factors (<0.5%) 2284600200013 (MONIT-ERR) 197Au capture cross section (2%) 2284600200014 (ERR-S) Counting statistics (3.6%) 2284600200015 (ERR-T) Total error 2284600200016 STATUS (TABLE) Table V of Phys.Rev.C69(2004)025803 2284600200017 (SPSDD,22846011) Renormalized. 2284600200018 HISTORY (20140828A) On. Re-compiled. 2284600200019 (20211007A) SD: Subent superseded. 2284600200020 ENDBIB 18 0 2284600200021 COMMON 4 3 2284600200022 ERR-1 ERR-2 ERR-3 ERR-4 2284600200023 PER-CENT PER-CENT PER-CENT PER-CENT 2284600200024 3.2 3.6 0.1 2.1 2284600200025 ENDCOMMON 3 0 2284600200026 DATA 6 1 2284600200027 EN-MEAN EN-RSL-FW DATA ERR-T MONIT-ERR ERR-S 2284600200028 KEV KEV MB PER-CENT PER-CENT PER-CENT 2284600200029 30. 40. 164. 6.1 2. 3.6 2284600200030 ENDDATA 3 0 2284600200031 ENDSUBENT 30 0 2284600299999 SUBENT 22846003 20211007 23042284600300001 BIB 5 17 2284600300002 REACTION (55-CS-135(N,G)55-CS-136,,SIG,,SPA) 2284600300003 REL-REF (R,22099002,W.Ratynski+,J,PR/C,37,595,1988) 2284600300004 Spectrum averaged cross section to renormalize 2284600300005 the ENDF/B-VI 197Au(n,g)198Au cross section 2284600300006 ENDF/B-VI cross section renormalized by a factor 2284600300007 0.958 to reproduce Ratynski et al. (1988). 2284600300008 ERR-ANALYS (ERR-1) Measurement of fast flux (5.1%) 2284600300009 (ERR-2) 135Cs thermal capture cross section (3.6%) 2284600300010 (ERR-3) 135Cs effect of resonance integral (0.1%) 2284600300011 (ERR-4) Measurement of thermal flux (2.1%) 2284600300012 (ERR-5,,0.5) Time factors (<0.5%) 2284600300013 (MONIT-ERR) 197Au capture cross section (3%) 2284600300014 (ERR-S) Counting statistics (5.8%) 2284600300015 (ERR-T) Total error 2284600300016 STATUS (TABLE) Table V of Phys.Rev.C69(2004)025803 2284600300017 HISTORY (20140828A) On. Re-compiled. 2284600300018 (20211007U) SD: REL-REF added. 2284600300019 ENDBIB 17 0 2284600300020 COMMON 4 3 2284600300021 ERR-1 ERR-2 ERR-3 ERR-4 2284600300022 PER-CENT PER-CENT PER-CENT PER-CENT 2284600300023 5.1 3.6 0.1 2.1 2284600300024 ENDCOMMON 3 0 2284600300025 DATA 6 1 2284600300026 EN-MEAN EN-RSL-FW DATA ERR-T MONIT-ERR ERR-S 2284600300027 KEV KEV MB PER-CENT PER-CENT PER-CENT 2284600300028 500. 67. 34.8 8.6 3. 5.8 2284600300029 ENDDATA 3 0 2284600300030 ENDSUBENT 29 0 2284600399999 SUBENT 22846004 20211007 23042284600400001 BIB 7 18 2284600400002 REACTION (55-CS-135(N,G)55-CS-136,,SIG,,,CALC) 2284600400003 ANALYSIS Calculated by Hauser-Feshbach Statistical Model (HFSM) 2284600400004 normalized to present data at En~30 keV and 500 keV 2284600400005 REL-REF (R,22099002,W.Ratynski+,J,PR/C,37,595,1988) 2284600400006 Spectrum averaged cross section to renormalize 2284600400007 the ENDF/B-VI 197Au(n,g)198Au cross section 2284600400008 COMMENT By Franz Kaeppeler (2014-08-28): 2284600400009 This data set gives point-wise cross sections based 2284600400010 on our HFSM calculation. 2284600400011 ERR-ANALYS (DATA-ERR) Experimental uncertainty as well as 2284600400012 additional uncertainty due to extrapolation for 2284600400013 data below 30 keV and above 500 keV 2284600400014 STATUS (TABLE) Table VI of Phys.Rev.C69(2004)025803 2284600400015 (DEP,22846002) En~30 keV measured cross section 2284600400016 (DEP,22846003) En~500 keV measured cross section 2284600400017 (SPSDD,22846012) Renormalized. 2284600400018 HISTORY (20140828A) On. REACTION(SF9): DERIV -> CALC 2284600400019 (20211007U) SD: Subent superseded. 2284600400020 ENDBIB 18 0 2284600400021 NOCOMMON 0 0 2284600400022 DATA 3 16 2284600400023 EN DATA DATA-ERR 2284600400024 KEV MB MB 2284600400025 1. 1561. 156. 2284600400026 3. 676. 68. 2284600400027 5. 482. 48. 2284600400028 10. 317. 28. 2284600400029 20. 213. 17. 2284600400030 30. 160. 10. 2284600400031 40. 133. 9. 2284600400032 50. 115. 8. 2284600400033 60. 104. 7. 2284600400034 80. 88.2 6.2 2284600400035 100. 78.3 5.5 2284600400036 200. 56.3 4.0 2284600400037 300. 43.2 3.4 2284600400038 400. 37.8 3.2 2284600400039 500. 34.9 3.0 2284600400040 1000. 30.6 3.8 2284600400041 ENDDATA 18 0 2284600400042 ENDSUBENT 41 0 2284600499999 NOSUBENT 22846005 20140828 22402284600500001 SUBENT 22846006 20211007 23042284600600001 BIB 6 15 2284600600002 REACTION (55-CS-135(N,G)55-CS-136,,SIG,,MXW,CALC) 2284600600003 ANALYSIS Folding of point-wise cross sections by Maxwellian 2284600600004 spectrum 2284600600005 REL-REF (D,22448002,S.Jaag+,J,NP/A,621,247,1997) 2284600600006 sig(kT=30 keV)=198+/-17 mb 2284600600007 (R,22099002,W.Ratynski+,J,PR/C,37,595,1988) 2284600600008 Spectrum averaged cross section to renormalize 2284600600009 the ENDF/B-VI 197Au(n,g)198Au cross section 2284600600010 ERR-ANALYS (DATA-ERR) No information on source of uncertainties 2284600600011 STATUS (TABLE) Table VIII of Phys.Rev.C69(2004)025803 2284600600012 (DEP,22846004) point-wise cross section given 2284600600013 (SPSDD,22846013) Renormalized. 2284600600014 HISTORY (20130112A) SD: EN-MEAN -> KT. 2284600600015 (20140828A) On. REACTION(SF9): DERIV -> CALC 2284600600016 (20211007A) SD: Subent superseded. 2284600600017 ENDBIB 15 0 2284600600018 NOCOMMON 0 0 2284600600019 DATA 3 12 2284600600020 KT DATA DATA-ERR 2284600600021 KEV MB MB 2284600600022 5. 522. 52. 2284600600023 8. 383. 36. 2284600600024 10. 329. 30. 2284600600025 15. 251. 21. 2284600600026 20. 208. 17. 2284600600027 25. 180. 13. 2284600600028 30. 160. 10. 2284600600029 40. 134. 8.7 2284600600030 50. 117. 8.2 2284600600031 60. 105. 7.3 2284600600032 80. 88.0 6.2 2284600600033 100. 78.7 5.7 2284600600034 ENDDATA 14 0 2284600600035 ENDSUBENT 34 0 2284600699999 NOSUBENT 22846007 20130112 22342284600700001 NOSUBENT 22846008 20130112 22342284600800001 NOSUBENT 22846009 20130112 22342284600900001 NOSUBENT 22846010 20130112 22342284601000001 SUBENT 22846011 20211007 23042284601100001 BIB 8 18 2284601100002 REACTION 1((55-CS-135(N,G)55-CS-136,,SIG,,SPA)/ 2284601100003 (79-AU-197(N,G)79-AU-198,,SIG,,SPA)) 2284601100004 2(55-CS-135(N,G)55-CS-136,,SIG,,SPA) 2284601100005 DECAY-MON (79-AU-198-G,3881.0MIN,DG,411.80,0.9558) 2284601100006 MONIT-REF (,R.Reifarth+,J,EPJ/P,133,424,2018) 2284601100007 ANALYSIS Cross section value in Subent 22841.002 is 2284601100008 renormalized for new gold cross section 2284601100009 CORRECTION Correction for revised gold standard: 611.6/582 =1.0512284601100010 ERR-ANALYS (ERR-1) Measurement of fast flux (3.2%) 2284601100011 (ERR-2) 135Cs thermal capture cross section (3.6%) 2284601100012 (ERR-3) 135Cs effect of resonance integral (0.1%) 2284601100013 (ERR-4) Measurement of thermal flux (2.1%) 2284601100014 (ERR-5,,0.5) Time factors (<0.5%) 2284601100015 (MONIT-ERR) 197Au capture cross section (2%) 2284601100016 (ERR-S) Counting statistics (3.6%) 2284601100017 (ERR-T) Total error 2284601100018 STATUS (TABLE) p.163 of INDC(GER)-0053 2284601100019 HISTORY (20211007C) SD: 2284601100020 ENDBIB 18 0 2284601100021 COMMON 5 3 2284601100022 ERR-1 ERR-2 ERR-3 ERR-4 ERR-S 2284601100023 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 2284601100024 3.2 3.6 0.1 2.1 3.6 2284601100025 ENDCOMMON 3 0 2284601100026 DATA 8 1 2284601100027 EN-MEAN EN-RSL-FW DATA 1ERR-T 1DATA 2ERR-T 22284601100028 MONIT MONIT-ERR 2284601100029 KEV KEV NO-DIM NO-DIM MB MB 2284601100030 MB MB 2284601100031 30. 40. 0.253 0.015 172. 10. 2284601100032 611.6 6. 2284601100033 ENDDATA 6 0 2284601100034 ENDSUBENT 33 0 2284601199999 SUBENT 22846012 20211007 23042284601200001 BIB 7 10 2284601200002 REACTION (55-CS-135(N,G)55-CS-136,,SIG,,,CALC) 2284601200003 DECAY-MON (79-AU-198-G,3881.0MIN,DG,411.80,0.9558) 2284601200004 MONIT-REF (,R.Reifarth+,J,EPJ/P,133,424,2018) 2284601200005 ANALYSIS Cross section value in Subent 22841.004 is 2284601200006 renormalized for new gold cross section 2284601200007 ERR-ANALYS (DATA-ERR) Experimental uncertainty as well as 2284601200008 additional uncertainty due to extrapolation for 2284601200009 data below 30 keV and above 500 keV 2284601200010 STATUS (TABLE) p.165 of INDC(GER)-0053 2284601200011 HISTORY (20211007C) SD: 2284601200012 ENDBIB 10 0 2284601200013 NOCOMMON 0 0 2284601200014 DATA 3 16 2284601200015 EN DATA DATA-ERR 2284601200016 KEV MB MB 2284601200017 1. 1641. 164. 2284601200018 3. 710. 71. 2284601200019 5. 507. 51. 2284601200020 10. 333. 29. 2284601200021 20. 224. 18. 2284601200022 30. 168. 11. 2284601200023 40. 140. 9. 2284601200024 50. 121. 8. 2284601200025 60. 109. 7. 2284601200026 80. 92.7 6.5 2284601200027 100. 82.3 5.8 2284601200028 200. 59.2 4.2 2284601200029 300. 45.4 3.6 2284601200030 400. 39.7 3.4 2284601200031 500. 36.7 3.2 2284601200032 1000. 32.2 4.0 2284601200033 ENDDATA 18 0 2284601200034 ENDSUBENT 33 0 2284601299999 SUBENT 22846013 20211007 23042284601300001 BIB 7 8 2284601300002 REACTION (55-CS-135(N,G)55-CS-136,,SIG,,MXW,CALC) 2284601300003 DECAY-MON (79-AU-198-G,3881.0MIN,DG,411.80,0.9558) 2284601300004 MONIT-REF (,R.Reifarth+,J,EPJ/P,133,424,2018) 2284601300005 ANALYSIS Cross section value in Subent 22841.006 is 2284601300006 renormalized for new gold cross section 2284601300007 ERR-ANALYS (DATA-ERR) No information on source of uncertainties 2284601300008 STATUS (TABLE) p.166 of INDC(GER)-0053 2284601300009 HISTORY (20211007C) SD: 2284601300010 ENDBIB 8 0 2284601300011 NOCOMMON 0 0 2284601300012 DATA 3 12 2284601300013 KT DATA DATA-ERR 2284601300014 KEV MB MB 2284601300015 5. 549. 55. 2284601300016 8. 403. 38. 2284601300017 10. 346. 32. 2284601300018 15. 264. 22. 2284601300019 20. 219. 18. 2284601300020 25. 189. 14. 2284601300021 30. 168. 11. 2284601300022 40. 141. 9.1 2284601300023 50. 123. 8.6 2284601300024 60. 110. 7.7 2284601300025 80. 92.5 6.5 2284601300026 100. 82.7 6.0 2284601300027 ENDDATA 14 0 2284601300028 ENDSUBENT 27 0 2284601399999 ENDENTRY 13 0 2284699999999