ENTRY C1734 20090828 C094C173400000001 SUBENT C1734001 20090828 C094C173400100001 BIB 9 18 C173400100002 TITLE Cross-section measurement of the 18F(alpha,p)21Ne C173400100003 reaction and possible implication for neutron C173400100004 production in explosive helium burning C173400100005 AUTHOR (H.Y.Lee,M.Couder,A.Couture,S.Falahat,J.Gorres, C173400100006 L.Lamm,P.J.LeBlanc,S.Obrien,A.Palumbo,E.Stech, C173400100007 E.Strandberg,W.Tan,C.Ugalde,M.Wiescher) C173400100008 INSTITUTE (1USANOT) C173400100009 REFERENCE (J,PR/C,80,025805,2009) C173400100010 FACILITY (VDG,VDGT)The experiments were made at the Nuclear C173400100011 Science Laboratory of the University of Notre Dame C173400100012 using the KN Van de Graaff accelerator and the FN C173400100013 tandem accelerator C173400100014 SAMPLE 21Ne implanted in the Cu/Au backing. C173400100015 DETECTOR (HPGE)Two clover detectors, each consisting of four C173400100016 individual HPGe crystals, were aligned face-to-face C173400100017 providing a nearly 4pi detection arrangement. C173400100018 METHOD (ACTIV) C173400100019 HISTORY (20090828C) Compiled by S.H. C173400100020 ENDBIB 18 0 C173400100021 NOCOMMON 0 0 C173400100022 ENDSUBENT 21 0 C173400199999 SUBENT C1734002 20090828 C094C173400200001 BIB 4 14 C173400200002 REACTION (10-NE-21(P,A)9-F-18,,PY,,TT) C173400200003 Target thickness was approx. 25 keV at proton energy C173400200004 of 3 MeV, which possibly leads to integration of C173400200005 reaction cross section over several resonances. C173400200006 DECAY-DATA (9-F-18,110.0MIN) C173400200007 STATUS (CURVE) Data taken from fig.4 of the reference C173400200008 Waiting for data from author C173400200009 ERR-ANALYS (ERR-S) Statistical uncertainty in 18-F activity C173400200010 (ERR-1,0.1,40.0) Relative uncertainty in initial C173400200011 abbundance C173400200012 (ERR-2) Rel. uncertainty in beta+ branching ratio C173400200013 (ERR-3) Rel. uncertainty in 18F decay constant C173400200014 (ERR-4) Rel. uncertainty in number of target nuclei C173400200015 (ERR-5) Rel. uncertainty in proton flux determination C173400200016 ENDBIB 14 0 C173400200017 COMMON 4 3 C173400200018 ERR-2 ERR-3 ERR-4 ERR-5 C173400200019 PER-CENT PER-CENT PER-CENT PER-CENT C173400200020 1.4 0.05 9.0 3.0 C173400200021 ENDCOMMON 3 0 C173400200022 DATA 4 37 C173400200023 EN DATA ERR-S DATA-MAX C173400200024 MEV PRD/INC PRD/INC PRD/INC C173400200025 2.50 1.27E-17 C173400200026 2.53 1.53E-15 C173400200027 2.56 3.59E-16 C173400200028 2.59 1.81E-14 4.66E-15 C173400200029 2.62 1.21E-15 C173400200030 2.65 1.23E-13 1.24E-14 C173400200031 2.68 5.60E-14 5.65E-15 C173400200032 2.71 6.12E-15 C173400200033 2.74 1.30E-15 C173400200034 2.77 1.82E-14 8.16E-15 C173400200035 2.80 3.38E-15 C173400200036 2.83 3.75E-14 4.50E-15 C173400200037 2.86 3.93E-15 C173400200038 2.89 2.91E-14 4.03E-15 C173400200039 2.92 4.66E-14 8.12E-15 C173400200040 2.96 1.12E-13 6.19E-14 C173400200041 2.99 4.20E-14 7.32E-15 C173400200042 3.00 1.99E-14 7.72E-15 C173400200043 3.01 5.20E-14 1.87E-14 C173400200044 3.01 2.52E-14 C173400200045 3.04 1.87E-13 9.80E-14 C173400200046 3.07 1.09E-12 4.53E-14 C173400200047 3.10 3.68E-12 1.52E-13 C173400200048 3.13 6.43E-13 7.70E-14 C173400200049 3.16 2.12E-12 8.78E-14 C173400200050 3.19 1.05E-12 6.48E-14 C173400200051 3.22 2.57E-12 1.07E-13 C173400200052 3.25 1.36E-11 8.43E-13 C173400200053 3.28 8.87E-12 3.67E-13 C173400200054 3.31 1.48E-11 9.11E-13 C173400200055 3.34 8.89E-12 5.48E-13 C173400200056 3.37 3.96E-12 1.66E-13 C173400200057 3.40 5.94E-12 3.70E-13 C173400200058 3.43 4.22E-11 1.75E-12 C173400200059 3.46 6.89E-11 4.25E-12 C173400200060 3.49 5.01E-11 3.09E-12 C173400200061 3.52 1.45E-10 9.04E-12 C173400200062 ENDDATA 39 0 C173400200063 ENDSUBENT 62 0 C173400299999 SUBENT C1734003 20090828 C094C173400300001 BIB 4 19 C173400300002 REACTION (9-F-18(A,P)10-NE-21,,SGV,,MXW,DERIV) C173400300003 STATUS (TABLE) Data taken from tab.2 of the reference C173400300004 (DEP,C1734002) C173400300005 ANALYSIS Reaction rate was obtained from measured data using twoC173400300006 methods, which gave excellent agreement. In the first C173400300007 method rate was calculated by integrating the C173400300008 experimental cross section over Maxwell-Boltzman C173400300009 distribution of a stellar gas at tempereture T. The C173400300010 second method for determining the reaction rate was C173400300011 based on the measurement of the on-resonance yield. C173400300012 MISC-COL (MISC1) Upper limit of calculated data C173400300013 (MISC2) Lower limit of calculated data C173400300014 Calculated rate carries a large uncertainty; C173400300015 The upper limit of the rate was calculated using the C173400300016 upper limit of the measured yield at around 2.4 MeV. C173400300017 The lower limit of the reaction rate corresponds to C173400300018 the lower limit of the measured yields without taking C173400300019 possible higher energy or lower energy resonances C173400300020 into account. C173400300021 ENDBIB 19 0 C173400300022 NOCOMMON 0 0 C173400300023 DATA 4 12 C173400300024 KT DATA MISC1 MISC2 C173400300025 K9 CM3/S/MOL CM3/S/MOL CM3/S/MOL C173400300026 0.1 7.53E-23 3.29E-25 4.90E-33 C173400300027 0.15 7.60E-18 1.32E-16 9.23E-22 C173400300028 0.2 1.08E-14 2.33E-12 5.35E-16 C173400300029 0.25 2.35E-12 7.64E-10 1.72E-12 C173400300030 0.3 5.01E-10 3.49E-08 3.87E-10 C173400300031 0.4 4.17E-07 4.10E-06 3.42E-07 C173400300032 0.5 2.32E-05 7.96E-05 1.96E-05 C173400300033 0.6 3.33E-04 6.63E-04 2.84E-04 C173400300034 0.7 2.22E-03 3.35E-03 1.91E-03 C173400300035 0.8 9.34E-03 1.21E-02 8.11E-03 C173400300036 0.9 2.98E-02 3.52E-02 2.61E-02 C173400300037 1.0 8.34E-02 8.97E-02 7.15E-02 C173400300038 ENDDATA 14 0 C173400300039 ENDSUBENT 38 0 C173400399999 ENDENTRY 3 0 C173499999999