ENTRY C1627 20080602 C088C162700000001 SUBENT C1627001 20080602 C088C162700100001 BIB 9 32 C162700100002 TITLE 24Mg(a,g)28Si resonance parameters at low a-particle C162700100003 energies C162700100004 AUTHOR (E.Strandberg,M.Beard,M.Couder,A.Couture,S.Falahat, C162700100005 J.Gorres,P.J.Leblanc,H.Y.Lee,S.O'brien,A.Palumbo, C162700100006 E.Stech,W.P.Tan,C.Ugalde,M.Wiescher,H.Costantini, C162700100007 K.Scheller,M.Pignatari,R.Azumanl.Buchmann) C162700100008 INSTITUTE (1USANOT,2ITYGVA,1CANTOR,1CANTMF,2UK KEU) C162700100009 (1USAUSA) University of Southern Indiana, C162700100010 Evansville, Indiana C162700100011 REFERENCE (J,PR/C,77,055801,2008) C162700100012 FACILITY (VDG,1USANOT) C162700100013 SAMPLE 99.99% pure natural magnesium evaporated of on 0.02 C162700100014 in. thickcopper backing. Magnesium thickness was C162700100015 100 - 400 nm,corresponding to target thicknesses of C162700100016 30.- 120 keV at an Alpha beam energy of 1.53 MeV for C162700100017 a target orientation of 45. deg with respect to the C162700100018 beam direction. C162700100019 DETECTOR (HPGE) High-purity germanium clover detector, with C162700100020 the clover operated in add-back mode placed at a C162700100021 distance of 2.5 cm behind the target,at 45. with C162700100022 respect to the beam direction C162700100023 (NAICR) Four NaI(Tl) detectors (each 8 in. diameter C162700100024 and ~6 in. thickness) were mounted in a common stand, C162700100025 and each was rotated 45. in polar and azimuthal C162700100026 angles, with respect to the beam. C162700100027 METHOD (COINC) Coincidence between NaI(Tl) C162700100028 observing the high energy primary gamma-ray C162700100029 decay of the 28Si resonance state and the C162700100030 clover observing the secondary 1.779 MeV C162700100031 gamma-ray transition from the first excited C162700100032 state to the ground state in 28Si. C162700100033 HISTORY (20080602C) Compiled by S.H. C162700100034 ENDBIB 32 0 C162700100035 NOCOMMON 0 0 C162700100036 ENDSUBENT 35 0 C162700199999 SUBENT C1627002 20080602 C088C162700200001 BIB 3 9 C162700200002 REACTION (12-MG-24(A,G),,WID/STR) C162700200003 STATUS (TABLE) Data taken from tab. 3,5 of the reference C162700200004 ERR-ANALYS (ERR-T) Total uncertainty, consisting of C162700200005 - statistical uncertainty C162700200006 (ERR-1) uncertainty of the reference value 6.9% C162700200007 (ERR-2) uncertainty of the stopping power 5% C162700200008 (ERR-3) uncertainty of relative efficiency 5% C162700200009 (ERR-4) uncertainty of the absolute charge 2% C162700200010 added in quadrature C162700200011 ENDBIB 9 0 C162700200012 COMMON 4 3 C162700200013 ERR-1 ERR-2 ERR-3 ERR-4 C162700200014 PER-CENT PER-CENT PER-CENT PER-CENT C162700200015 6.9 5.0 5.0 2.0 C162700200016 ENDCOMMON 3 0 C162700200017 DATA 5 10 C162700200018 EN-RES EN-RES DATA ERR-T DATA-MAX C162700200019 MEV MEV EV EV EV C162700200020 10.8835 2.95E-6 C162700200021 10.8055 3.55E-7 C162700200022 10.5141 2.18E-12 C162700200023 1.530 0.094 0.014 C162700200024 1.413 2.1E-4 4.0E-6 C162700200025 1.351 0.0019 0.0003 C162700200026 1.277 5.8E-4 1.1E-4 C162700200027 1.178 2.2E-4 6.0E-5 C162700200028 1.12 1.130 1.6E-5 C162700200029 1.087 1.0E-5 C162700200030 ENDDATA 12 0 C162700200031 ENDSUBENT 30 0 C162700299999 SUBENT C1627003 20080602 C088C162700300001 BIB 5 12 C162700300002 REACTION (12-MG-24(A,G)14-SI-28,,SGV,,MXW,DERIV) C162700300003 STATUS (TABLE) Data taken from tab. 4 of the reference C162700300004 (DEP,C1627002) C162700300005 ANALYSIS The reaction rate was calculated over C162700300006 a temperature range of 0.1-10 GK, including all C162700300007 resonances up to E = 3.792 MeV; for the newly measured C162700300008 resonances, the measured resonance strengths were C162700300009 used, while for all other resonances the strengths C162700300010 were taken from evaluation by Endt C162700300011 Nucl. Phys. A521,1,1990. C162700300012 REL-REF (R,,P.Endt,J,NP/A,521,1,1990) C162700300013 ERR-ANALYS No information given C162700300014 ENDBIB 12 0 C162700300015 NOCOMMON 0 0 C162700300016 DATA 2 23 C162700300017 KT DATA C162700300018 K9 CM3/S/MOL C162700300019 0.15 1.11E-32 C162700300020 0.2 2.21E-24 C162700300021 0.3 3.83E-16 C162700300022 0.4 5.08E-12 C162700300023 0.5 1.82E-9 C162700300024 0.6 1.14E-7 C162700300025 0.7 2.50E-6 C162700300026 0.8 2.69E-5 C162700300027 0.9 1.75E-4 C162700300028 1.0 7.96E-4 C162700300029 1.5 8.02E-2 C162700300030 2.0 8.65E-1 C162700300031 2.5 3.86 C162700300032 3.0 1.11E+1 C162700300033 3.5 2.48E+1 C162700300034 4.0 4.67E+1 C162700300035 4.5 7.75E+1 C162700300036 5.0 1.17E+2 C162700300037 6.0 2.18E+2 C162700300038 7.0 3.37E+2 C162700300039 8.0 4.62E+2 C162700300040 9.0 5.81E+2 C162700300041 10.0 6.91E+2 C162700300042 ENDDATA 25 0 C162700300043 ENDSUBENT 42 0 C162700399999 ENDENTRY 3 0 C162799999999