ENTRY F0059 20041123 F020F005900000001 SUBENT F0059001 20041123 F020F005900100001 BIB 9 25 F005900100002 TITLE Oxygen detection by non-rutherford proton F005900100003 backscattering below 2.5 MeV. F005900100004 AUTHOR (M.Luomajarvi,E.Rauhala,M.Hautala) F005900100005 INSTITUTE (2SF HLS) F005900100006 REFERENCE (J,NIM/B,9,255,1985) F005900100007 FACILITY (VDG) 2.5 MV F005900100008 SAMPLE Two samples, Sn2O (600 nm) and Ti2O (320 nm), both F005900100009 prepared by argon sputtering onto carbon substrates, F005900100010 were used for the 1H ion scattering cross section F005900100011 measurements of oxygen. The stoichiometry and thicknessF005900100012 of each of the oxide layers were carefully determined F005900100013 before and after each H run by 4He backscattering from F005900100014 the same spots as for the H measurements. F005900100015 MONITOR (13-AL-27(P,G)14-SI-28,,SIG) The accelerator energy wasF005900100016 calibrated by using 27Al(p,g)28Si nuclear resonance F005900100017 reactions at Ep=991.9 keV or Ep=1799.8 keV. F005900100018 ERR-ANALYS (ERR-DIG)Digitizing error F005900100019 (DATA-ERR)Error from the graphic bars. F005900100020 The accuracy of the cross section values is about 3% F005900100021 resulting from the statistical and background F005900100022 subtraction errors. If the possible error in the He F005900100023 backscattering determination of the stoichiometries of F005900100024 the oxide foils is included a total accuracy of 4% in F005900100025 the absolute cross sections may be estimated. F005900100026 HISTORY (20041122C) F005900100027 ENDBIB 25 0 F005900100028 NOCOMMON 0 0 F005900100029 ENDSUBENT 28 0 F005900199999 SUBENT F0059002 20041123 F020F005900200001 BIB 3 3 F005900200002 REACTION (8-O-16(P,EL)8-O-16,,DA,,RTH) F005900200003 ERR-ANALYS (EN-ERR-DIG)Digitizing error F005900200004 STATUS (CURVE)Fig.1 F005900200005 ENDBIB 3 0 F005900200006 COMMON 3 3 F005900200007 ANG-CM EN-ERR-DIG ERR-DIG F005900200008 ADEG KEV NO-DIM F005900200009 170.0 3.66 0.01 F005900200010 ENDCOMMON 3 0 F005900200011 DATA 3 15 F005900200012 EN DATA-CM DATA-ERR F005900200013 KEV NO-DIM NO-DIM F005900200014 776.65 1.1437 F005900200015 979.75 1.4928 0.13170 F005900200016 1179.8 1.8059 F005900200017 1382.9 2.1670 F005900200018 1490.5 2.4553 0.11973 F005900200019 1585.9 2.6717 F005900200020 1690.4 3.0677 F005900200021 1788.8 3.2841 F005900200022 1893.4 3.5125 0.13170 F005900200023 1985.6 3.8605 F005900200024 2090.2 4.1847 F005900200025 2188.5 4.5927 F005900200026 2287.0 4.7971 F005900200027 2385.3 5.1691 0.13170 F005900200028 2486.7 5.5771 F005900200029 ENDDATA 17 0 F005900200030 ENDSUBENT 29 0 F005900299999 SUBENT F0059003 20041123 F020F005900300001 BIB 3 3 F005900300002 REACTION (8-O-16(P,EL)8-O-16,,DA,,RTH) F005900300003 ERR-ANALYS (ANG-ERR-D)Digitizing error F005900300004 STATUS (CURVE)Fig.2 F005900300005 ENDBIB 3 0 F005900300006 COMMON 2 3 F005900300007 ANG-ERR-D ERR-DIG F005900300008 ADEG NO-DIM F005900300009 0.08 0.01 F005900300010 ENDCOMMON 3 0 F005900300011 DATA 4 40 F005900300012 EN ANG DATA DATA-ERR F005900300013 KEV ADEG NO-DIM NO-DIM F005900300014 1790.0 80.459 1.3780 F005900300015 1790.0 90.223 1.6411 F005900300016 1790.0 99.984 1.9380 0.92824E-01 F005900300017 1790.0 110.17 2.3530 F005900300018 1790.0 120.15 2.5740 0.84385E-01 F005900300019 1790.0 130.14 2.8034 F005900300020 1790.0 140.13 2.9906 F005900300021 1790.0 147.09 3.0507 F005900300022 1790.0 160.13 3.1540 0.10130 F005900300023 1790.0 170.34 3.3075 F005900300024 1990.0 80.235 1.4370 F005900300025 1990.0 90.203 1.8352 F005900300026 1990.0 100.39 2.2334 F005900300027 1990.0 110.36 2.5978 F005900300028 1990.0 120.12 2.9284 F005900300029 1990.0 130.10 3.2169 F005900300030 1990.0 139.87 3.4209 0.10123 F005900300031 1990.0 147.25 3.6161 F005900300032 1990.0 160.29 3.7701 F005900300033 1990.0 170.29 3.8476 F005900300034 2191.0 80.213 1.6480 F005900300035 2191.0 90.173 2.1305 F005900300036 2191.0 100.13 2.6300 F005900300037 2191.0 110.09 3.0788 0.10970 F005900300038 2191.0 120.05 3.5782 F005900300039 2191.0 130.02 3.9426 0.11814 F005900300040 2191.0 140.01 4.1382 F005900300041 2191.0 146.74 4.3165 0.10967 F005900300042 2191.0 159.99 4.5042 F005900300043 2191.0 169.98 4.6829 0.12658 F005900300044 2382.0 80.434 1.6143 F005900300045 2382.0 90.171 2.1474 0.12658 F005900300046 2382.0 100.13 2.6637 F005900300047 2382.0 110.07 3.3150 F005900300048 2382.0 120.03 3.8313 0.92858E-01 F005900300049 2382.0 129.77 4.3307 F005900300050 2382.0 140.17 4.7543 F005900300051 2382.0 147.11 4.9241 0.10973 F005900300052 2382.0 159.93 5.0780 F005900300053 2382.0 169.93 5.1639 F005900300054 ENDDATA 42 0 F005900300055 ENDSUBENT 54 0 F005900399999 ENDENTRY 3 0 F005999999999