ENTRY 23396 20180825 22692339600000001 SUBENT 23396001 20180825 22692339600100001 BIB 17 54 2339600100002 TITLE 197Au(n,2n) reaction cross section in the 15-21 MeV 2339600100003 energy range 2339600100004 AUTHOR (A.Kalamara, R.Vlastou, M.Kokkoris, N.G.Nicolis, 2339600100005 N.Patronis, M.Serris, V.Michalopoulou, A.Stamatopoulos,2339600100006 A.Lagoyannis, S.Harissopulos) 2339600100007 INSTITUTE (2GRCTUA) A.Kalamara,R.Vlastou,M.Kokkoris, 2339600100008 V.Michalopoulou, A.Stamatopoulos, 2339600100009 (2GRCIOA) N.G.Nicolis,N.Patronis, 2339600100010 (2GRCGRC) Athens University of Applied Sciences, 2339600100011 Athens 12210, Greece . M.Serris. 2339600100012 (2GRCATH) A.Lagoyiannis, S.Harissopulos 2339600100013 REFERENCE (J,PR/C,97,034615,2018) Main ref. 2339600100014 #doi:10.1103/PhysRevC.97.034615 2339600100015 (J,EPJ/CS,146,11048,2017) ND2016 Conf. report. 2339600100016 Prelim. data ( 17.1, 20.9 MeV) on fig.4 2339600100017 FACILITY (VDGT,2GRCATH) The 5.5 MV tandem T11/25 accelerator of 2339600100018 NCSR "Demokritos". 2339600100019 REL-REF (N,,A.Tsinganis+,J,PR/C,83,024609,2011) 2339600100020 Previous experiment at 9.5-10.5 MeV energy 2339600100021 SAMPLE High purity Au and Al foils of 0.4-0.5 mm thickness, 2339600100022 13-14 mm diameter. Au samples were stacked between 2339600100023 two Al foils. Placed at ~2 cm distance from incident 2339600100024 source. 2339600100025 MONITOR (13-AL-27(N,A)11-NA-24,,SIG) 2339600100026 DECAY-MON (11-NA-24,14.959HR,DG,1368.6,1.00) 2339600100027 From IRDFF-1.05 2339600100028 INC-SOURCE (D-T) 3H(d,n)4He reaction , Q=17.59 MeV. 2339600100029 Solid Ti-tritiated target, air cooled. 2339600100030 INC-SPECT Quasi-monoenergetic neutrons. 2339600100031 Ed, MeV En, MeV I, muA Duration, hr Fluence, n/cm2/s 2339600100032 1.0 15.3 +- 0.5 1.5 26.1 (3.65+-0.18)*10**62339600100033 1.5 17.1 +- 0.3 1.0 96.1 (2.71+-0.14)*10**52339600100034 2.0 17.9 +- 0.3 0.3 9.7 (2.25+-0.12)*10**52339600100035 2.7 18.9 +- 0.3 0.5 27.8 (3.24+-0.16)*10**52339600100036 3.5 20.0 +- 0.2 0.2 10.1 (1.35+-0.08)*10**52339600100037 4.3 20.9 +- 0.2 0.3 32.4 (2.51+-0.15)*10**52339600100038 DETECTOR (HPGE) Induced activity was measured by 3 HPGe detector2339600100039 of 100 %, 56 %, 16 % relative efficiency . 2339600100040 Distance sample-detector was 10 cm. 2339600100041 Absolute efficiency was determined by 152Eu point sourc2339600100042 (BF3) To record the neutron beam fluctuations. 2339600100043 Placed at 3m distance from the neutron source. 2339600100044 METHOD (ACTIV) Activation . 2339600100045 For Au-196-m2 - cooling time ~1 hr. 2339600100046 For Au-196-g - cooling time ~2 day. 2339600100047 CORRECTION For gamma-rays self-absorption in sample ( for 1368.6 2339600100048 keV - negligible). 2339600100049 For decay during irradiation and cooling. 2339600100050 For beam flux fluctuations. 2339600100051 ADD-RES (COMP) Compared with theoretical calculations by codes 2339600100052 EMPIRE-3.2.2 and TALYS-1.8 2339600100053 ERR-ANALYS (ERR-T) Total error 2339600100054 (ERR-1) Al monitor cross-section uncertainty 2339600100055 HISTORY (20160225C) M.M. 2339600100056 ENDBIB 54 0 2339600100057 COMMON 1 3 2339600100058 ERR-1 2339600100059 PER-CENT 2339600100060 3. 2339600100061 ENDCOMMON 3 0 2339600100062 ENDSUBENT 61 0 2339600199999 SUBENT 23396002 20180625 22692339600200001 BIB 5 12 2339600200002 REACTION (79-AU-197(N,2N)79-AU-196,,SIG) 2339600200003 DECAY-DATA (79-AU-196-G,6.183D,DG,355.7,0.870, 2339600200004 DG,333.0,0.229, 2339600200005 DG,426.0,0.070) 2339600200006 ANALYSIS Weighted mean of cross sections determined with 2339600200007 several gamma lines . 2339600200008 COMMENT Of authors. 2339600200009 At 20. MeV value obtained by 426.0 keV gamma-line was 2339600200010 excluded due to low statistics. 2339600200011 STATUS (TABLE) Table V of Phys.Rev. C,97,034615,2018 2339600200012 (DEP,23296004) Directly measured data of cross sections2339600200013 for individual gamma lines. 2339600200014 ENDBIB 12 0 2339600200015 NOCOMMON 0 0 2339600200016 DATA 4 6 2339600200017 EN EN-ERR DATA ERR-T 2339600200018 MEV MEV MB MB 2339600200019 15.3 0.5 1995. 93. 2339600200020 17.1 0.3 1772. 86. 2339600200021 17.9 0.3 1651. 80. 2339600200022 18.9 0.3 1394. 64. 2339600200023 20.0 0.2 1049. 91. 2339600200024 20.9 0.2 716. 56. 2339600200025 ENDDATA 8 0 2339600200026 ENDSUBENT 25 0 2339600299999 SUBENT 23396003 20180625 22692339600300001 BIB 5 14 2339600300002 REACTION 1(79-AU-197(N,2N)79-AU-196-M2,,SIG) 2339600300003 2(79-AU-197(N,2N)79-AU-196-M2,,SIG) 2339600300004 DECAY-DATA1(79-AU-196-M2,9.6HR,DG,147.8,0.430,DG,188.3,0.374) 2339600300005 Gamma-ray intensities 2339600300006 2(79-AU-196-M2,9.6HR,DG,147.8,0.430,DG,188.3,0.340) 2339600300007 Modified gamma-ray intensities 2339600300008 ANALYSIS Weighted mean of cross sections determined with 2339600300009 several gamma lines . 2339600300010 REL-REF 1(R,,R.B.Firestone,B,FIRESTONE,,,1999) 2339600300011 2(R,,M.Majerle,J,ARI,141,5,2018) 2339600300012 Mentioned in the articles as "to be published" 2339600300013 STATUS (TABLE) Table V of Phys.Rev. C,97,034615,2018 2339600300014 (DEP,23296005) Directly measured data of cross sections2339600300015 for individual gamma lines. 2339600300016 ENDBIB 14 0 2339600300017 NOCOMMON 0 0 2339600300018 DATA 6 6 2339600300019 EN EN-ERR DATA 1ERR-T 1DATA 2ERR-T 22339600300020 MEV MEV MB MB MB MB 2339600300021 15.3 0.5 163. 9. 171. 10. 2339600300022 17.1 0.3 196. 12. 211. 13. 2339600300023 17.9 0.3 213. 14. 222. 15. 2339600300024 18.9 0.3 195. 13. 204. 13. 2339600300025 20.0 0.2 169. 20. 177. 12. 2339600300026 20.9 0.2 120. 13. 125. 14. 2339600300027 ENDDATA 8 0 2339600300028 ENDSUBENT 27 0 2339600399999 SUBENT 23396004 20180625 22692339600400001 BIB 4 12 2339600400002 REACTION (79-AU-197(N,2N)79-AU-196,,SIG) 2339600400003 DECAY-DATA ((1.)79-AU-196-G,6.183D,DG,355.7,0.870) 2339600400004 ((2.)79-AU-196-G,6.183D,DG,333.0,0.229) 2339600400005 ((3.)79-AU-196-G,6.183D,DG,426.0,0.070) 2339600400006 ERR-ANALYS Sources of uncertainties: 2339600400007 (ERR-2) Peak area for Au 2339600400008 (ERR-3) Peak area for Al 2339600400009 (ERR-4) Decay constant for Au 2339600400010 (ERR-5) Decay constant for Al 2339600400011 (ERR-6) Absolute efficiency of gamma-detection for Au 2339600400012 (ERR-7) Absolute efficiency of gamma-detection for Al 2339600400013 STATUS (TABLE) Table IV of Phys.Rev. C,97,034615,2018 2339600400014 ENDBIB 12 0 2339600400015 NOCOMMON 0 0 2339600400016 DATA 10 17 2339600400017 EN DATA ERR-T ERR-2 ERR-3 ERR-4 2339600400018 ERR-5 ERR-6 ERR-7 DECAY-FLAG 2339600400019 MEV B PER-CENT PER-CENT PER-CENT PER-CENT 2339600400020 PER-CENT PER-CENT PER-CENT NO-DIM 2339600400021 15.3 2.075 4.8 0.1 1.5 0.07 2339600400022 0.45 2.1 2.7 1. 2339600400023 15.3 2.094 4.8 0.2 1.5 0.07 2339600400024 0.45 2.1 2.7 2. 2339600400025 15.3 1.896 5.1 1.6 1.5 0.07 2339600400026 0.45 2.2 2.7 3. 2339600400027 17.1 1.913 5.0 1.6 1.5 0.15 2339600400028 0.60 1.6 2.9 1. 2339600400029 17.1 1.989 4.8 0.6 1.5 0.15 2339600400030 0.60 1.6 2.9 2. 2339600400031 17.1 1.721 5.0 1.4 1.5 0.15 2339600400032 0.60 1.8 2.9 3. 2339600400033 17.9 1.652 5.3 1.7 1.6 0.07 2339600400034 0.45 2.7 2.7 1. 2339600400035 17.9 1.723 5.3 1.4 1.6 0.07 2339600400036 0.45 2.6 2.7 2. 2339600400037 17.9 1.550 6.6 4.2 1.6 0.07 2339600400038 0.45 2.5 2.7 3. 2339600400039 18.9 1.396 5.0 0.2 1.1 0.07 2339600400040 0.55 2.7 2.7 1. 2339600400041 18.9 1.418 5.0 0.6 1.1 0.07 2339600400042 0.55 2.6 2.7 2. 2339600400043 18.9 1.372 5.2 1.4 1.1 0.07 2339600400044 0.55 2.5 2.7 3. 2339600400045 20.0 1.024 9.0 2.4 2.1 0.15 2339600400046 0.50 4.8 6.2 1. 2339600400047 20.0 1.171 10.8 6.3 2.1 0.15 2339600400048 0.50 4.9 6.2 2. 2339600400049 20.9 0.710 8.7 1.7 0.9 0.15 2339600400050 0.46 4.5 6.2 1. 2339600400051 20.9 0.724 8.8 1.9 0.9 0.15 2339600400052 0.46 4.6 6.2 2. 2339600400053 20.9 0.715 9.8 4.7 0.9 0.15 2339600400054 0.46 4.3 6.2 3. 2339600400055 ENDDATA 38 0 2339600400056 ENDSUBENT 55 0 2339600499999 SUBENT 23396005 20180625 22692339600500001 BIB 4 11 2339600500002 REACTION (79-AU-197(N,2N)79-AU-196-M2,,SIG) 2339600500003 DECAY-DATA ((1.)79-AU-196-M2,9.6HR,DG,147.8,0.430) 2339600500004 ((2.)79-AU-196-M2,9.6HR,DG,188.3,0.374) 2339600500005 ERR-ANALYS Sources of uncertainties: 2339600500006 (ERR-2) Peak area for Au 2339600500007 (ERR-3) Peak area for Al 2339600500008 (ERR-4) Decay constant for Au 2339600500009 (ERR-5) Decay constant for Al 2339600500010 (ERR-6) Absolute efficiency of gamma-detection for Au 2339600500011 (ERR-7) Absolute efficiency of gamma-detection for Al 2339600500012 STATUS (TABLE) Table IV of Phys.Rev. C,97,034615,2018 2339600500013 ENDBIB 11 0 2339600500014 NOCOMMON 0 0 2339600500015 DATA 10 12 2339600500016 EN DATA ERR-T ERR-2 ERR-3 ERR-4 2339600500017 ERR-5 ERR-6 ERR-7 DECAY-FLAG 2339600500018 MEV B PER-CENT PER-CENT PER-CENT PER-CENT 2339600500019 PER-CENT PER-CENT PER-CENT NO-DIM 2339600500020 15.3 0.171 6.5 0.3 1.5 0.07 2339600500021 0.45 4.8 2.7 1. 2339600500022 15.3 0.156 6.6 0.4 1.5 0.07 2339600500023 0.45 4.9 2.7 2. 2339600500024 17.1 0.218 6.3 2.3 1.5 0.15 2339600500025 0.60 3.7 2.9 1. 2339600500026 17.1 0.188 6.7 3.2 1.5 0.15 2339600500027 0.60 3.8 2.9 2. 2339600500028 17.9 0.218 7.8 2.8 1.6 0.07 2339600500029 0.45 5.9 2.7 1. 2339600500030 17.9 0.208 8.1 3.0 1.6 0.07 2339600500031 0.45 6.2 2.7 2. 2339600500032 18.9 0.203 7.4 1.4 1.1 0.07 2339600500033 0.55 5.9 2.7 1. 2339600500034 18.9 0.188 7.8 2.3 1.1 0.07 2339600500035 0.55 6.2 2.7 2. 2339600500036 20.0 0.177 14.3 6.2 2.1 0.15 2339600500037 0.50 10.7 6.2 1. 2339600500038 20.0 0.162 15.0 6.8 2.1 0.15 2339600500039 0.50 11.2 6.2 2. 2339600500040 20.9 0.124 13.1 2.7 0.9 0.15 2339600500041 0.46 10.7 6.2 1. 2339600500042 20.9 0.116 13.6 3.2 0.9 0.15 2339600500043 0.46 11.2 6.2 2. 2339600500044 ENDDATA 28 0 2339600500045 ENDSUBENT 44 0 2339600599999 ENDENTRY 5 0 2339699999999