ENTRY 31826 20200831 31973182600000001 SUBENT 31826001 20200831 31973182600100001 BIB 15 84 3182600100002 TITLE Neutron capture on the s-process branching point 171Tm 3182600100003 via time-of-flight and activation 3182600100004 AUTHOR (C.Guerrero, J.Lerendegui-Marco, M.Paul, M.Tessler, 3182600100005 S.Heinitz, C.Domingo-Pardo, S.Cristallo, R.Dressler, 3182600100006 S.Halfon, N.Kivel, U.Koester, E.A.Maugeri, 3182600100007 T.Palchan-Hazan, J.M.Quesada, D.Rochman, D.Schumann, 3182600100008 L.Weissman, O.Aberle, S.Amaducci, J.Andrzejewski, 3182600100009 L.Audouin, V.Becares, M.Bacak, J.Balibrea, A.Barak, 3182600100010 M.Barbagallo, S.Barros, F.Becvar, C.Beinrucker, 3182600100011 D.Berkovits, E.Berthoumieux, J.Billowes, D.Bosnar, 3182600100012 M.Brugger, Y.Buzaglo, M.Caamano, F.Calvino, 3182600100013 M.Calviani, D.Cano-Ott, R.Cardella, A.Casanovas, 3182600100014 D.M.Castelluccio, F.Cerutti, Y.H.Chen, E.Chiaveri, 3182600100015 N.Colonna, G.Cortes, M.A.Cortes-Giraldo, L.Cosentino, 3182600100016 H.Dafna, L.A.Damone, M.Diakaki, M.Dietz, E.Dupont, 3182600100017 I.Duran, Y.Eisen, B.Fernandez-Domingez, A.Ferrari, 3182600100018 P.Ferreira, P.Finocchiaro, V.Furman, K.Goebel, 3182600100019 A.R.Garcia, A.Gawlik, T.Glodariu, I.F.Goncalves, 3182600100020 E.Gonzalez-Romero, A.Goverdovski, E.Griesmayer, 3182600100021 F.Gunsing, H.Harada, T.Heftrich, J.Heyse, T.Hirsh, 3182600100022 D.G.Jenkins, E.Jericha, F.Kaeppeler, Y.Kadi, B.Kaizer,3182600100023 T.Katabuchi, P.Kavrigin, V.Ketlerov, V.Khryachkov, 3182600100024 D.Kijel, A.Kimura, M.Kokkoris, A.Kriesel, M.Krticka, 3182600100025 E.Leal-Cidoncha, C.Lederer-Woods, H.Leeb, S.Lo Meo, 3182600100026 S.J.Lonsdale, D.Macina, A.Manna, J.Marganiec, 3182600100027 T.Martinez, C.Massimi, P.Mastinu, M.Mastromarco, 3182600100028 F.Matteucci, E.Mendoza, A.Mengoni, P.M.Milazzo, 3182600100029 M.A.Millan-Callado, F.Mingrone, M.Mirea, S.Montesano, 3182600100030 A.Musumarra, R.Nolte, A.Oprea, N.Patronis, A.Pavlik, 3182600100031 J.Perkowski, L.Piersanti, I.Porras, J.Praena, 3182600100032 K.Rajeev, T.Rauscher, R.Reifarth, 3182600100033 T.Rodriguez-Gonzalez, P.C.Rout, C.Rubbia, J.A.Ryan, 3182600100034 M.Sabate-Gilarte, A.Saxena, P.Schillebeeckx, 3182600100035 S.Schmidt, A.Shor, P.Sedyshev, A.G.Smith, 3182600100036 A.Stamatopoulos, G.Tagliente, J.L.Tain, 3182600100037 A.E.Tarifeno-Saldivia, L.Tassan-Got, A.Tsinganis, 3182600100038 S.Valenta, G.Vannini, V.Variale, P.Vaz, A.Ventura, 3182600100039 V.Vlachoudis, R.Vlastou, A.Wallner, S.Warren, 3182600100040 M.Weigand, C.Weiss, C.Wolf, P.J.Woods, T.J.Wright, 3182600100041 P.Zugec) 3182600100042 INSTITUTE (2SPNSEU,3ISLHEB,3ISLSOR,2SWTPSI,2SPNVAL,2ITYOAC, 3182600100043 2FR ILL,2ZZZCER,3POLLOU,2FR PAR,2SPNPCM,2AUSATI, 3182600100044 2ITYBAU,2PRTLFE,3CZRCHU,2GERFRK,2FR SAC,2UK MAN, 3182600100045 3CROZAG,2SPNSAU,2SPNUPC,2ITYBOL,2ITYUBO,2ITYLNS, 3182600100046 2UK EDG,4ZZZDUB,3RUMBUC,4RUSFEI,2JPNJAE,2ZZZGEL, 3182600100047 2UK YRK,2GERKFK,2JPNTIT,2GRCTUA,2ITYPAD,2ITYTRI, 3182600100048 2ITYCAT,2GERPTB,2GRCIOA,2AUSVIE,2SPNGRU,3INDTRM, 3182600100049 2UK HFS,2SWTBAS,3AULCBR) 3182600100050 (2ITYITY) INFN + Universita di Perugia, Prugia 3182600100051 REFERENCE (J,PRL,125,142701,2020) 3182600100052 REL-REF (O,23460001,C.Guerrero+,J,PRL,125,142701,2020) 3182600100053 Time-of-flight cross sections meausred at CERN nTOF 3182600100054 (N,23540001,T.Heftrich+,J,PR/C,99,065810,2019) 3182600100055 Thermal cross section and resonance integral measured 3182600100056 with a 171Tm sample from the same batch of 171Tm 3182600100057 material 3182600100058 FACILITY (LINAC,3ISLSOR) 3182600100059 INC-SOURCE (P-LI7) Proton beam (1910 keV and 1946 keV with spread 3182600100060 of 15 keV) on liquid Li circulating in a closed loop 3182600100061 SAMPLE The 171Tm material from the nTOF sample was recovered, 3182600100062 separated, purified, deposited on a high purity Al 3182600100063 disk (0.5 mm thick, 22 mm diam.). 3182600100064 The sample encapsulated in an Al holder and positioned 3182600100065 at 6.5 mm from the Li surface behind a thin stainless 3182600100066 steel wall was irradiated. 3182600100067 (69-TM-171,ENR=0.9791) 3182600100068 (69-TM-169,ENR=0.0203) 3182600100069 (69-TM-170,ENR=0.0006) 3182600100070 DETECTOR (HPGE) Efficiency curve determined within 2% using a 3182600100071 multigamma (85Sr,137Cs,88Y,60Co) and a 152Eu source 3182600100072 METHOD (ACTIV) 3182600100073 MONITOR (79-AU-197(N,G)79-AU-198,,SIG) 3182600100074 Au monitor foils (22 mm diam., 97.2(1) mg for Ep=1910 3182600100075 107.1(1) mg for Ep=1946 keV) affixed to the Al sample 3182600100076 holder 1 mm upstream of the 171Tm sample 3182600100077 CORRECTION Corrected for 3182600100078 - Self-sheilding (negligible) 3182600100079 - variation of neutron rate during irradiation 3182600100080 (1.02 for Ep=1910 keV and 1.05 for Ep=1946 keV) 3182600100081 ADD-RES MACS(169Tm, 30 keV)=990(60) mb deteremined to validate 3182600100082 the experimental and analysis procedures. 3182600100083 (DECAY) T1/2(172Tm) = 2.65(8) d from decay curves 3182600100084 STATUS (APRVD) Proof-read by Moshe Tessler (2020-09-01) 3182600100085 HISTORY (20200831C) On+ED 3182600100086 ENDBIB 84 0 3182600100087 NOCOMMON 0 0 3182600100088 ENDSUBENT 87 0 3182600199999 SUBENT 31826002 20200831 31973182600200001 BIB 7 17 3182600200002 REACTION (69-TM-171(N,G)69-TM-172,,SIG,,SPA) 3182600200003 DECAY-DATA (69-TM-172,2.65D,DG,1093.6,0.060, 3182600200004 DG,1387.1,0.056, 3182600200005 DG,1465.9,0.045, 3182600200006 DG,1529.6,0.051, 3182600200007 DG,1608.4,0.041) 3182600200008 MONITOR (79-AU-197(N,G)79-AU-198,,SIG,,SPA) 3182600200009 DECAY-MON (79-AU-198,,DG,411.8,0.9562) 3182600200010 FLAG (1.) Ep=1910 keV irradiation (IR1) 3182600200011 (2.) Ep=1946 keV irradiation (IR2) 3182600200012 ERR-ANALYS (ERR-T) Total uncertainty propagated from 3182600200013 (ERR-1) HPGe detector efficiency (2%) 3182600200014 (ERR-2) Absolute 172Tm gamma intensity (8%) 3182600200015 (ERR-3) Relative 172Tm gamma intensity (5%) 3182600200016 (ERR-4) 171Tm sample mass (4%) 3182600200017 (ERR-5) 197Au monitor cross section (1.8%) 3182600200018 STATUS (TABLE) Text of Phys.Rev.Lett.125(2020)142701 3182600200019 ENDBIB 17 0 3182600200020 COMMON 5 3 3182600200021 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 3182600200022 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3182600200023 2. 8. 5. 4. 1.8 3182600200024 ENDCOMMON 3 0 3182600200025 DATA 6 2 3182600200026 KT-DUMMY DATA ERR-T MONIT MONIT-ERR FLAG 3182600200027 KEV MB MB MB MB NO-DIM 3182600200028 31. 385. 39. 589. 12. 1. 3182600200029 43. 299. 30. 510. 10. 2. 3182600200030 ENDDATA 4 0 3182600200031 ENDSUBENT 30 0 3182600299999 SUBENT 31826003 20200831 31973182600300001 BIB 4 22 3182600300002 REACTION (69-TM-171(N,G)69-TM-172,,SIG,,MXW) 3182600300003 ANALYSIS kT=30 keV MACS of an evaluated cross section 3182600300004 renormalized by the ratio of the measured cross 3182600300005 section to the evaluated cross section folded by the 3182600300006 LiLiT spectrum (0.93+/-0.01 for Ep=1910 keV, 3182600300007 1.08+/-0.03 for Ep=1946 keV), and multiplied by 3182600300008 2/sqrt(pi). 3182600300009 The evaluation cross section was taken from JEFF and 3182600300010 ROSFOND the MACS with the two libraries are averaged. 3182600300011 The weighted averaged was obtained from the MACS from 3182600300012 Ep=1910 keV irradiation (404(41)mb) and Ep=1946 keV 3182600300013 irradiation (364(38) mb). 3182600300014 ERR-ANALYS (ERR-T) Total uncertainty propagated from 3182600300015 (ERR-1) HPGe detector efficiency (2%) 3182600300016 (ERR-2) Absolute 172Tm gamma intensity (8%) 3182600300017 (ERR-3) Relative 172Tm gamma intensity (5%) 3182600300018 (ERR-4) 171Tm sample mass (4%) 3182600300019 (ERR-5) 197Au monitor cross section (1.8%) 3182600300020 (ERR-6) Correction for deviation of the experimental 3182600300021 spectrum from pure Maxwellian spectrum (1.5%) 3182600300022 STATUS (TABLE) Text of Phys.Rev.Lett.125(2020)142701 3182600300023 (DEP,31826002) Spectrum averaged cross sections 3182600300024 ENDBIB 22 0 3182600300025 COMMON 6 3 3182600300026 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 3182600300027 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT 3182600300028 2. 8. 5. 4. 1.8 1.5 3182600300029 ENDCOMMON 3 0 3182600300030 DATA 3 1 3182600300031 KT DATA ERR-T 3182600300032 KEV MB MB 3182600300033 30. 384. 40. 3182600300034 ENDDATA 3 0 3182600300035 ENDSUBENT 34 0 3182600399999 SUBENT 31826004 20200831 31973182600400001 BIB 3 50 3182600400002 SUPPL-INF (INCSP) SimLit-GEANT4 simulated neutron spectrum for 3182600400003 irradiation at Ep=1910 keV (IR1) 3182600400004 ------------------------------- 3182600400005 Emin Emax Abundance 3182600400006 (keV) (keV) (1/keV) 3182600400007 ------------------------------- 3182600400008 0 5 9.8712346E+12 3182600400009 5 10 2.2808238E+13 3182600400010 10 15 3.2542646E+13 3182600400011 15 20 3.9354797E+13 3182600400012 20 25 4.5589104E+13 3182600400013 25 30 4.9401158E+13 3182600400014 30 35 6.0016176E+13 3182600400015 35 40 5.0608166E+13 3182600400016 40 45 4.8053491E+13 3182600400017 45 50 4.5127843E+13 3182600400018 50 55 4.0709117E+13 3182600400019 55 60 3.7828138E+13 3182600400020 60 65 3.4186205E+13 3182600400021 65 70 3.1158896E+13 3182600400022 70 75 2.9006271E+13 3182600400023 75 80 2.6508937E+13 3182600400024 80 85 2.1147445E+13 3182600400025 85 90 1.6442744E+13 3182600400026 90 95 1.328279E+13 3182600400027 95 100 1.0356414E+13 3182600400028 100 105 8.1650131E+12 3182600400029 105 110 6.3213322E+12 3182600400030 110 115 4.5467136E+12 3182600400031 115 120 3.2278752E+12 3182600400032 120 125 2.2246646E+12 3182600400033 125 130 1.4746375E+12 3182600400034 130 135 9.1422144E+11 3182600400035 135 140 5.6062195E+11 3182600400036 140 145 3.031098E+11 3182600400037 145 150 1.723015E+11 3182600400038 150 155 8.8699248E+10 3182600400039 155 160 4.2690701E+10 3182600400040 160 165 2.0592729E+10 3182600400041 165 170 8.757049E+09 3182600400042 170 175 3.5575373E+09 3182600400043 175 180 1.1630457E+09 3182600400044 180 185 3.762792E+08 3182600400045 185 190 1.7103588E+08 3182600400046 190 195 68414544. 3182600400047 195 200 0 3182600400048 200 205 0 3182600400049 ------------------------------- 3182600400050 STATUS (TABLE) Data received from Moshe Tessler 3182600400051 HISTORY (20200831R) On. Received from Moshe Tessler 3182600400052 ENDBIB 50 0 3182600400053 NOCOMMON 0 0 3182600400054 NODATA 0 0 3182600400055 ENDSUBENT 54 0 3182600499999 SUBENT 31826005 20200831 31973182600500001 BIB 3 50 3182600500002 SUPPL-INF (INCSP) SimLit-GEANT4 simulated neutron spectrum for 3182600500003 irradiation at Ep=1946 keV (IR2) 3182600500004 ------------------------------- 3182600500005 Emin Emax Abundance 3182600500006 (keV) (keV) (1/keV) 3182600500007 ------------------------------- 3182600500008 0 5 8.2739887E+12 3182600500009 5 10 1.6092097E+13 3182600500010 10 15 2.1897454E+13 3182600500011 15 20 2.5994232E+13 3182600500012 20 25 3.032815E+13 3182600500013 25 30 3.2184526E+13 3182600500014 30 35 3.7285502E+13 3182600500015 35 40 3.6438458E+13 3182600500016 40 45 3.6863388E+13 3182600500017 45 50 3.729461E+13 3182600500018 50 55 3.5952257E+13 3182600500019 55 60 3.6224669E+13 3182600500020 60 65 3.5304595E+13 3182600500021 65 70 3.4308346E+13 3182600500022 70 75 3.3635182E+13 3182600500023 75 80 3.307595E+13 3182600500024 80 85 3.0318876E+13 3182600500025 85 90 2.7440417E+13 3182600500026 90 95 2.5355844E+13 3182600500027 95 100 2.27286E+13 3182600500028 100 105 2.0992946E+13 3182600500029 105 110 1.9118686E+13 3182600500030 110 115 1.6915543E+13 3182600500031 115 120 1.5017469E+13 3182600500032 120 125 1.3143954E+13 3182600500033 125 130 1.1432809E+13 3182600500034 130 135 9.538146E+12 3182600500035 135 140 8.0114962E+12 3182600500036 140 145 6.021895E+12 3182600500037 145 150 4.8744526E+12 3182600500038 150 155 3.7781309E+12 3182600500039 155 160 2.7879754E+12 3182600500040 160 165 2.0014913E+12 3182600500041 165 170 1.3864131E+12 3182600500042 170 175 8.9138009E+11 3182600500043 175 180 5.7752503E+11 3182600500044 180 185 3.4898047E+11 3182600500045 185 190 1.9980137E+11 3182600500046 190 195 1.0542493E+11 3182600500047 195 200 5.6300026E+10 3182600500048 200 205 4.820053E+10 3182600500049 ------------------------------- 3182600500050 STATUS (TABLE) Data received from Moshe Tessler 3182600500051 HISTORY (20200831R) On. Received from Moshe Tessler 3182600500052 ENDBIB 50 0 3182600500053 NOCOMMON 0 0 3182600500054 NODATA 0 0 3182600500055 ENDSUBENT 54 0 3182600599999 ENDENTRY 5 0 3182699999999