ENTRY C1932 20120716 C121C193200000001 SUBENT C1932001 20120716 C121C193200100001 BIB 10 35 C193200100002 TITLE Measurement of the 18Ne(alpha,p0)21Na Reaction Cross C193200100003 Section in the Burning Energy Region for X-Ray Bursts C193200100004 AUTHOR (P.J.C.Salter,M.Aliotta,T.Davinson,H.Al Falou,A.Chen, C193200100005 B.Davids,B.R.Fulton,N.Galinski,D.Howell,G.Lotay, C193200100006 P.Machule,A.StJ.Murphy,C.Ruiz,S.Sjue,M.Taggart, C193200100007 P.Walden,P.J.Woods) C193200100008 INSTITUTE (2UK EDG,1CANTMF,1CANSFU) C193200100009 (2UK UK) University of York, York, United Kingdom C193200100010 REFERENCE (J,PRL,108,242701,2012) C193200100011 FACILITY (LINAC,1CANTMF) Time-reversal measurement was carried C193200100012 out at the ISAC II facility at TRIUMF C193200100013 SAMPLE Polyethylene sample with thickness of C193200100014 311 and 550 mu-g/cm2 C193200100015 DETECTOR (TELES,SISD,SISD) Detection of 4He ions was achieved C193200100016 with a dE-E telescope consisting of two MSL type S2 C193200100017 detectors (65 and 500 mu-m thick, respectively) each C193200100018 segmented into 48 annular front strips and 16 rear C193200100019 sectors covering a laboratory angular range of 7deg C193200100020 to 19deg C193200100021 (TELES,SISD,SISD) Detection of 18Ne ions was achieved C193200100022 with a dE-E telescope using a Si PAD detector C193200100023 with thickness of 35 mu-m with four unsegmented C193200100024 quadrants as dE detector and E detector with thickness C193200100025 of 1500 mu-m with four quadrants, each segmented into C193200100026 16 front strips and 24 rear sectors C193200100027 METHOD (EDE) C193200100028 INC-SOURCE Proton beam with energy of 500 MeV was steered onto C193200100029 production targets to produce radioactive isotope C193200100030 21Na. Produced ions were ionized, accelerated off the C193200100031 source's high-voltage platform at up to 60 kV and C193200100032 sent through a mass separator to select the ion beam C193200100033 of 21Na. The beam was transported in the low-energy C193200100034 beam transport electrostatic beam line and sent via a C193200100035 switchyard to room-temperature linac C193200100036 HISTORY (20120716C) Compiled by S.H. C193200100037 ENDBIB 35 0 C193200100038 NOCOMMON 0 0 C193200100039 ENDSUBENT 38 0 C193200199999 SUBENT C1932002 20120716 C121C193200200001 BIB 4 12 C193200200002 REACTION ((1-H-1(11-NA-21,A)10-NE-18,,SIG)= C193200200003 (11-NA-21(P,A)10-NE-18,,SIG)) C193200200004 STATUS (TABLE) Data taken from tab. 1 of the reference C193200200005 ERR-ANALYS (ERR-S) Statistical uncertainty C193200200006 (ERR-1) Systematic uncertainty in the number of C193200200007 projectile nuclei C193200200008 (ERR-2) Systematic uncertainty in the number of C193200200009 target nuclei C193200200010 (ERR-SYS) Total systematic uncertainty C193200200011 ANALYSIS The 21Na(p,a)18Ne cross section was determined from C193200200012 the measured coincident yields under the assumption C193200200013 of a thin-target condition at each investigated energy C193200200014 ENDBIB 12 0 C193200200015 COMMON 3 3 C193200200016 ERR-1 ERR-2 ERR-SYS C193200200017 PER-CENT PER-CENT PER-CENT C193200200018 8.0 8.0 16.0 C193200200019 ENDCOMMON 3 0 C193200200020 DATA 6 6 C193200200021 EN-CM EN-ERR DATA ERR-S -ERR-S +ERR-S C193200200022 MEV MEV MB MB MB MB C193200200023 3.83 0.13 7.4E-05 4.6E-05 8.3E-05C193200200024 4.02 0.13 6.5E-04 2.3E-04 3.9E-04C193200200025 4.32 0.12 3.8E-03 0.9E-03 1.1E-03C193200200026 4.40 0.07 5.3E-03 1.1E-03 C193200200027 4.61 0.12 3.0E-02 1.0E-02 1.2E-02C193200200028 5.21 0.06 0.35 0.06 C193200200029 ENDDATA 8 0 C193200200030 ENDSUBENT 29 0 C193200299999 SUBENT C1932003 20120716 C121C193200300001 BIB 3 5 C193200300002 REACTION (10-NE-18(A,P)11-NA-21,PAR,SIG) C193200300003 STATUS (TABLE) Data taken from tab. 1 of the reference C193200300004 (DEP,C1932002) C193200300005 ANALYSIS The 18Ne(a,p0)21Na reaction cross section was C193200300006 inferred by using the principle of detailed balance C193200300007 ENDBIB 5 0 C193200300008 COMMON 1 3 C193200300009 E-LVL C193200300010 MEV C193200300011 0.0 C193200300012 ENDCOMMON 3 0 C193200300013 DATA 6 6 C193200300014 EN-CM EN-ERR DATA ERR-S -ERR-S +ERR-S C193200300015 MEV MEV MB MB MB MB C193200300016 1.19 0.13 5.5E-04 3.5E-04 6.2E-04C193200300017 1.38 0.13 3.8E-03 1.6E-03 2.7E-03C193200300018 1.68 0.12 2.3E-02 0.5E-02 0.7E-02C193200300019 1.76 0.07 3.1E-02 0.6E-02 C193200300020 1.97 0.12 0.17 0.06 0.07 C193200300021 2.57 0.06 1.7 0.3 C193200300022 ENDDATA 8 0 C193200300023 ENDSUBENT 22 0 C193200399999 SUBENT C1932004 20120716 C121C193200400001 BIB 4 9 C193200400002 REACTION (10-NE-18(A,P)11-NA-21,PAR,SGV,,MXW) C193200400003 STATUS (TABLE) Data taken from tab. 2 of the reference C193200400004 (DEP,C1932003) C193200400005 MISC-COL (MISC1) Low limit of reaction rate C193200400006 (MISC2) High limit of reaction rate C193200400007 ANALYSIS The astrophysical 18Ne(alpha,p0)21Na reaction rate as C193200400008 a function of temperature was calculated by numerical C193200400009 integration of experimental cross sections using the C193200400010 code EXP2RATE C193200400011 ENDBIB 9 0 C193200400012 COMMON 1 3 C193200400013 E-LVL C193200400014 MEV C193200400015 0.0 C193200400016 ENDCOMMON 3 0 C193200400017 DATA 5 16 C193200400018 KT DATA DATA-ERR MISC1 MISC2 C193200400019 K9 CM3/S/MOL CM3/S/MOL CM3/S/MOL CM3/S/MOL C193200400020 0.95 2.0E-03 1.2E-03 8.5E-04 3.2E-03 C193200400021 1.05 9.9E-03 5.6E-03 4.4E-03 1.6E-02 C193200400022 1.15 3.8E-02 2.1E-02 1.7E-02 5.9E-02 C193200400023 1.25 1.2E-01 0.6E-01 5.8E-02 1.8E-01 C193200400024 1.35 3.3E-01 1.7E-01 1.6E-01 5.0E-01 C193200400025 1.45 8.0E-01 3.9E-01 4.1E-01 1.2 C193200400026 1.55 1.8 0.8 9.4E-01 2.6 C193200400027 1.65 3.6 1.7 2.0 5.3 C193200400028 1.75 6.9 3.1 3.8 9.9 C193200400029 1.85 1.2E+01 0.5E+01 6.9 1.7E+01 C193200400030 1.95 2.1E+01 0.9E+01 1.2E+01 3.0E+01 C193200400031 2.05 3.4E+01 1.4E+01 2.0E+01 4.8E+01 C193200400032 2.15 5.3E+01 2.2E+01 3.1E+01 7.5E+01 C193200400033 2.25 8.0E+01 3.3E+01 4.7E+01 1.1E+02 C193200400034 2.35 1.2E+02 0.5E+02 6.9E+01 1.6E+02 C193200400035 2.45 1.7E+02 0.7E+02 9.9E+01 2.3E+02 C193200400036 ENDDATA 18 0 C193200400037 ENDSUBENT 36 0 C193200499999 ENDENTRY 4 0 C193299999999