ENTRY C1103 20230802 C231C1103000 1 SUBENT C1103001 20230802 C231C1103001 1 BIB 6 8 C1103001 2 TITLE 16O(p,alpha0)13N cross-section measurements C1103001 3 AUTHOR (A.V.Nero,A.J.Howard) C1103001 4 REFERENCE (J,NP/A,210,60,1973) C1103001 5 #doi:10.1016/0375-9474(73)90503-4 C1103001 6 INSTITUTE (1USACAL) C1103001 7 FACILITY (VDGT,1USACAL) ONR-CIT tandem accelerator. C1103001 8 HISTORY (20170922C) BP C1103001 9 (20230717A) OS. ERR-ANALYS corrected in sub.2 C1103001 10 ENDBIB 8 0 C1103001 11 NOCOMMON 0 0 C1103001 12 ENDSUBENT 11 0 C110300199999 SUBENT C1103002 20230802 C231C1103002 1 BIB 8 26 C1103002 2 REACTION (8-O-16(P,A)7-N-13,PAR,SIG) C1103002 3 SAMPLE Targets were produced by evaporating WO3 of natural C1103002 4 isotopic constitution onto arrays of 0.5 mm thick C1103002 5 tantalum blanks The mass density deposited was C1103002 6 measured to be 4.0 mg/cm2 by a crystal-oscillator C1103002 7 thickness monitor system. C1103002 8 DETECTOR (NAICR) 7.6 x 7.6 cm NaI(Tl) crystals. C1103002 9 METHOD (ACTIV,COINC) The targets were irradiated with the C1103002 10 proton beam for periods comparable to the 13N C1103002 11 half-life. After bombardment, the targets were C1103002 12 transformed to an off-line annihilation spectrometer C1103002 13 which counted coincidence pulses between two NaI(Tl) C1103002 14 crystals. C1103002 15 ERR-ANALYS (DATA-ERR) Pointwise uncertainty, not including ERR-1 C1103002 16 (ERR-1) The cross-section scale is estimated to be C1103002 17 uncertain by 15% owing to the uncertainty in C1103002 18 determination of the absolute oxygen content of the C1103002 19 targets and to the uncertainty in the value of the C1103002 20 spectrometer efficiency. C1103002 21 COMMENT Authors say that in their opinion the cs to higher C1103002 22 levels of N-13 are negligible in the energy range C1103002 23 considered and therefore they used the partial cs to C1103002 24 the ground state to determine the (total) reaction C1103002 25 rate. C1103002 26 DECAY-DATA (7-N-13,10.0MIN,AR) C1103002 27 STATUS (TABLE,,A.V.Nero+,J,NP/A,210,60,1973) Table 1 C1103002 28 ENDBIB 26 0 C1103002 29 COMMON 2 3 C1103002 30 ERR-1 E-LVL C1103002 31 PER-CENT MEV C1103002 32 15.0 0.0 C1103002 33 ENDCOMMON 3 0 C1103002 34 DATA 3 26 C1103002 35 EN-CM DATA DATA-ERR C1103002 36 MEV MB MB C1103002 37 6.343 0.26 0.08 C1103002 38 6.460 1.54 0.14 C1103002 39 6.579 2.52 0.22 C1103002 40 6.697 3.58 0.30 C1103002 41 6.815 4.98 0.35 C1103002 42 6.932 7.17 0.50 C1103002 43 7.049 7.99 0.57 C1103002 44 7.167 14.9 0.57 C1103002 45 7.285 13.1 1.0 C1103002 46 7.402 18.9 1.0 C1103002 47 7.520 101.0 5.0 C1103002 48 7.637 43.4 3.0 C1103002 49 7.725 28.6 1.5 C1103002 50 7.873 48.8 3.0 C1103002 51 7.991 28.6 1.9 C1103002 52 8.107 41.1 2.6 C1103002 53 8.225 12.8 1.0 C1103002 54 8.342 13.2 1.3 C1103002 55 8.460 12.8 1.0 C1103002 56 8.698 6.08 0.56 C1103002 57 8.838 6.08 0.44 C1103002 58 8.930 6.89 0.50 C1103002 59 9.147 8.07 0.62 C1103002 60 9.399 25.9 1.9 C1103002 61 9.647 31.8 2.7 C1103002 62 9.882 33.6 3.5 C1103002 63 ENDDATA 28 0 C1103002 64 ENDSUBENT 63 0 C110300299999 SUBENT C1103003 20170922 C171C1103 3 1 BIB 5 16 C1103 3 2 REACTION (8-O-16(P,A)7-N-13,,SGV) C1103 3 3 METHOD The reaction rate for the 160(p,alpha)13N was C1103 3 4 calculated as an average over the Maxwell-Boltzmann C1103 3 5 distribution of the product of cross section and C1103 3 6 velocity. C1103 3 7 ERR-ANALYS (DATA-ERR) The major source of uncertainty appears to C1103 3 8 be associated with the experimental cross sections. C1103 3 9 The assigned uncertainty for reaction rate C1103 3 10 determination is 20%. C1103 3 11 COMMENT Authors say that in their opinion the cs to higher C1103 3 12 levels of N-13 are negligible in the energy range C1103 3 13 considered and therefore they used the partial cs to C1103 3 14 the ground state to determine the (total) reaction C1103 3 15 rate. C1103 3 16 STATUS (DEP,C1103002) C1103 3 17 (TABLE) Table 2, page 65. C1103 3 18 ENDBIB 16 0 C1103 3 19 COMMON 1 3 C1103 3 20 DATA-ERR C1103 3 21 PER-CENT C1103 3 22 20.0 C1103 3 23 ENDCOMMON 3 0 C1103 3 24 DATA 2 5 C1103 3 25 KT-K DATA C1103 3 26 K9 CM3/S/MOL C1103 3 27 3.0 2.34E-27 C1103 3 28 3.5 8.89E-26 C1103 3 29 4.0 1.38E-24 C1103 3 30 4.5 1.17E-23 C1103 3 31 5.0 6.44E-23 C1103 3 32 ENDDATA 7 0 C1103 3 33 ENDSUBENT 32 0 C1103 399999 ENDENTRY 3 0 C110399999999