ENTRY D4367 20170517 D109D436700000001 SUBENT D4367001 20170517 D109D436700100001 BIB 11 44 D436700100002 TITLE Cross section measurement of the astrophysically D436700100003 important17O(p,g)18F reaction in a wide energy range D436700100004 AUTHOR (Gy.Gyurky,A.Ornelas,Zs.Fulop,Z.Halasz,G.G.Kiss, D436700100005 T.Szucs,R.Husznak,I.Hornyak,I.Rajta,I.Vajda) D436700100006 INSTITUTE (3HUNDEB,3HUNKOS) D436700100007 REFERENCE (J,PR/C,95,035805,2017) D436700100008 #doi:10.1103/PhysRevC.95.035805 D436700100009 FACILITY (VDGT,3HUNDEB) Tandetron D436700100010 SAMPLE (8-O-17,ENR=0.778) D436700100011 (8-O-17,ENR=0.274) The targets were made by anodic D436700100012 oxidation of tantalum disks in water enriched in 17-O, D436700100013 producing Ta2O5 layers. Two waters samples with D436700100014 different level of 17-O enrichment were used for D436700100015 target preparations: 77.8% and 27.4%.The Ta:0 D436700100016 stochiometry was determined by Rutherford D436700100017 backscattering spectrometry (RBS), and was found to D436700100018 be 0.411 +/- 0.015. The target thickness has been D436700100019 determined both by RBS, and by using the intense D436700100020 resonances of the 17O(p,g)18F and 18O(p,g)19F D436700100021 reaction. The average target thickness was D436700100022 (4.87+/-0.29)*10**17 atoms/cm2. D436700100023 DETECTOR (HPGE) D436700100024 METHOD (ACTIV,GSPEC,SITA,EXTB) The reaction cross sections D436700100025 of 17O(p,g)18F was determined between proton energies D436700100026 of 500 keV and 1.8 MeV using activation technique. D436700100027 The length of the irradiation varied between 15 D436700100028 minutes and 5 hours. The typical beam current was 5 D436700100029 uA. After the irradiation, a waiting time of 0.25 h D436700100030 was used. The activity of targets was measured with a D436700100031 100% relative efficiency High-Purity Germanium D436700100032 detector, which had a 4pi lead shielding. The targets D436700100033 were placed directly on to the detector to maximize D436700100034 detection efficiency. The measurement relied on the D436700100035 detection of the 511 keV annihilation photons D436700100036 following the decay of the positron emitter 18F. D436700100037 Counting statistics were collected for typically 16 D436700100038 hours. D436700100039 ERR-ANALYS (ERR-1) number of 17-O target atoms (6%) D436700100040 (ERR-2) 17-O enrichment (2%) D436700100041 (ERR-3) detection efficiency (3%) D436700100042 (ERR-4) beam intensity (3%) D436700100043 (ERR-S) counting statistics (0.5-5%) D436700100044 ADD-RES (COMP) Comparison with previous data from literature D436700100045 HISTORY (20170511C) MPT D436700100046 ENDBIB 44 0 D436700100047 COMMON 4 3 D436700100048 ERR-1 ERR-2 ERR-3 ERR-4 D436700100049 PER-CENT PER-CENT PER-CENT PER-CENT D436700100050 6.0 2.0 3.0 3.0 D436700100051 ENDCOMMON 3 0 D436700100052 ENDSUBENT 51 0 D436700199999 SUBENT D4367002 20170517 D109D436700200001 BIB 5 11 D436700200002 REACTION (8-O-17(P,G)9-F-18,,SIG) D436700200003 DECAY-DATA (9-F-18,109.7MIN,AR,511.) The decay is entirely to the D436700200004 ground state of 18-O, the 511 keV photons from the D436700200005 annihilation of the emitted positron was detected. D436700200006 ERR-ANALYS (EN-ERR) the uncertainty of the effective energy was D436700200007 estimated based on the slope of the cross section D436700200008 function D436700200009 STATUS (TABLE) Table 2. of the article D436700200010 COMMENT EN represents here the effective D436700200011 energies, defined by the median of the yield curve D436700200012 within the target thickness. D436700200013 ENDBIB 11 0 D436700200014 NOCOMMON 0 0 D436700200015 DATA 4 77 D436700200016 EN EN-ERR DATA ERR-S D436700200017 KEV KEV MICRO-B MICRO-B D436700200018 497.8 1.4 0.592 0.021 D436700200019 505.4 2.5 0.587 0.118 D436700200020 512.6 1.4 0.738 0.120 D436700200021 517.7 1.4 16.3 1.8 D436700200022 522.0 2.0 6.13 0.37 D436700200023 527.1 1.8 1.37 0.38 D436700200024 537.7 1.4 1.96 0.23 D436700200025 545.9 2.8 2.93 0.14 D436700200026 556.1 2.9 4.95 0.59 D436700200027 568.0 1.6 10.3 1.0 D436700200028 576.7 3.4 30.5 0.8 D436700200029 582.9 1.5 67.8 1.2 D436700200030 587.7 1.3 107. 0.8 D436700200031 595.0 2.7 70.7 1.2 D436700200032 604.5 3.3 25.0 0.4 D436700200033 614.9 2.9 10.5 0.2 D436700200034 627.7 1.4 4.14 0.34 D436700200035 637.8 1.3 4.03 0.21 D436700200036 647.8 1.3 3.39 0.21 D436700200037 657.9 1.3 3.78 0.15 D436700200038 665.8 2.1 5.00 0.51 D436700200039 671.0 1.7 138. 1.7 D436700200040 672.8 1.3 218. 3.6 D436700200041 674.6 1.9 100. 2.3 D436700200042 676.4 1.9 16.9 0.6 D436700200043 685.8 2.1 8.72 0.20 D436700200044 698.0 1.4 14.9 0.93 D436700200045 702.1 3.3 26.3 0.83 D436700200046 707.5 3.7 47.0 1.9 D436700200047 713.1 1.4 135. 4.2 D436700200048 715.6 2.4 178. 1.0 D436700200049 716.1 1.4 170. 0.8 D436700200050 720.3 2.7 121. 1.2 D436700200051 727.6 1.5 38.6 1.7 D436700200052 735.3 2.7 18.6 1.0 D436700200053 743.3 1.6 12.2 0.8 D436700200054 747.9 1.2 49.6 0.6 D436700200055 752.9 1.2 7.66 0.2 D436700200056 755.9 2.1 7.34 0.3 D436700200057 786.0 2.1 3.30 0.1 D436700200058 818.2 1.3 2.36 1.0 D436700200059 823.2 1.3 9.51 0.3 D436700200060 828.0 1.3 12.2 0.3 D436700200061 832.9 1.3 2.5 0.20 D436700200062 878.4 1.2 2.06 0.13 D436700200063 916.4 1.8 2.18 0.12 D436700200064 924.0 1.6 1.97 0.09 D436700200065 926.4 1.9 12.1 0.2 D436700200066 933.1 1.2 2.65 0.09 D436700200067 996.5 1.8 2.67 0.08 D436700200068 1086.8 1.9 3.55 0.08 D436700200069 1095.3 1.1 11.7 2.8 D436700200070 1098.8 1.8 176. 0.8 D436700200071 1103.7 1.7 35.5 1.6 D436700200072 1108.1 2.3 6.0 0.4 D436700200073 1148.6 1.1 4.24 0.1 D436700200074 1221.9 1.7 5.71 0.1 D436700200075 1237.8 2.6 12.2 1.3 D436700200076 1241.9 1.7 55.7 0.7 D436700200077 1248.1 1.3 19.2 0.9 D436700200078 1251.4 2.1 12.7 0.4 D436700200079 1256.6 1.8 9.34 0.22 D436700200080 1262.2 2.0 8.83 0.36 D436700200081 1271.9 1.9 19.5 0.2 D436700200082 1278.3 1.1 12.0 0.3 D436700200083 1283.3 1.1 7.75 0.10 D436700200084 1296.8 1.7 5.19 0.22 D436700200085 1338.5 1.1 4.22 0.14 D436700200086 1343.0 1.6 23.1 0.2 D436700200087 1348.1 1.3 5.42 0.17 D436700200088 1353.3 1.1 3.98 0.16 D436700200089 1358.4 1.0 4.33 0.21 D436700200090 1397.2 1.6 5.25 0.12 D436700200091 1498.7 1.0 5.76 0.08 D436700200092 1597.4 1.5 7.94 0.31 D436700200093 1697.5 1.5 10.7 0.3 D436700200094 1798.8 1.0 11.8 0.2 D436700200095 ENDDATA 79 0 D436700200096 ENDSUBENT 95 0 D436700299999 SUBENT D4367004 20170517 D109D436700400001 BIB 4 5 D436700400002 REACTION (8-O-17(P,G)9-F-18,,SIG,,SFC) D436700400003 ANALYSIS (SHAPE) R-matrix analysis by AZURE2 code. D436700400004 STATUS (TABLE) in text. D436700400005 (DEP,D4367002) Energy dependent S-factors D436700400006 FLAG (1.) Total S-factor D436700400007 ENDBIB 5 0 D436700400008 NOCOMMON 0 0 D436700400009 DATA 4 1 D436700400010 EN-CM DATA ERR-S FLAG D436700400011 KEV B*KEV B*KEV NO-DIM D436700400012 0. 4.7 1.0 1. D436700400013 ENDDATA 3 0 D436700400014 ENDSUBENT 13 0 D436700499999 ENDENTRY 3 0 D436799999999