ENTRY F1094 20111222 F044F109400000001 SUBENT F1094001 20111222 F044F109400100001 BIB 9 25 F109400100002 TITLE Determination of inverse electric field strength of F109400100003 Ta218O5 film produced in biological electrolytes using F109400100004 O-18(p,a)N-15 nuclear reaction analysis. F109400100005 AUTHOR (S.N.Wosu) F109400100006 INSTITUTE (1USAPUP) F109400100007 REFERENCE (J,NIM/B,237,631,2005) F109400100008 #doi:10.1016/j.nimb.2005.02.030 F109400100009 FACILITY (VDG,1USAPUP) The 2.0 MeV Van de Graaff generator. F109400100010 DETECTOR (SIBAR) The emitted alpha particles were detected by a F109400100011 50 mm2 surface barrier detector placed at a distance ofF109400100012 40 mm from the target and at a detection angle between F109400100013 150 and 165 adeg. with respect to the beam direction. F109400100014 SAMPLE The Ta218O2 nuclear reaction analysis targets were F109400100015 prepared at a constant voltage of 100 V and current F109400100016 density of 10 mA/cm2 in pure water, ammonium citrate F109400100017 solutions (pH of 6.0-6.4), and enriched and natural F109400100018 biological solutions (pH of 6.4-8.0). The target F109400100019 chamber was evacuated to a pressure on the order of F109400100020 10**(-5) Torr. The tantalum film (enriched in O-18 F109400100021 to 23.3%) of 0.12 mu-m thickness with 13 mu-m Kapton F109400100022 absorber placed in front of the detector at 150 degree F109400100023 detection angle was used. F109400100024 ERR-ANALYS (EN-ERR-DIG) Energy digitizing error F109400100025 (ERR-DIG) Data digitizing error F109400100026 HISTORY (20111222C) F109400100027 ENDBIB 25 0 F109400100028 COMMON 3 3 F109400100029 ANG EN-ERR-DIG ERR-DIG F109400100030 ADEG MEV ARB-UNITS F109400100031 150. 0.002 11.186 F109400100032 ENDCOMMON 3 0 F109400100033 ENDSUBENT 32 0 F109400199999 SUBENT F1094002 20111222 F044F109400200001 BIB 3 3 F109400200002 REACTION (8-O-18(P,A)7-N-15,,DA,,REL) F109400200003 COMMENT No explanation of relative units is given. F109400200004 STATUS (CURVE) Fig.12 F109400200005 ENDBIB 3 0 F109400200006 NOCOMMON 0 0 F109400200007 DATA 2 20 F109400200008 EN DATA F109400200009 KEV ARB-UNITS F109400200010 637.95 3.518E+03 F109400200011 645.18 5.2715E+03 F109400200012 648.96 6.1271E+03 F109400200013 650.21 6.618E+03 F109400200014 651.15 6.9126E+03 F109400200015 652.73 7.0389E+03 F109400200016 654.68 6.2539E+03 F109400200017 664.34 3.857E+03 F109400200018 675.77 4.2647E+03 F109400200019 682.45 4.3214E+03 F109400200020 686.9 4.5462E+03 F109400200021 689.12 4.6586E+03 F109400200022 690.7 4.841E+03 F109400200023 760.01 5.9552E+03 F109400200024 764.77 6.1379E+03 F109400200025 776.21 6.4615E+03 F109400200026 797.77 8.1882E+03 F109400200027 801.23 8.8756E+03 F109400200028 811.33 1.0587E+04 F109400200029 814.46 1.1625E+04 F109400200030 ENDDATA 22 0 F109400200031 ENDSUBENT 30 0 F109400299999 ENDENTRY 2 0 F109499999999