ENTRY C1800 20100510 C101C180000000001 SUBENT C1800001 20100510 C101C180000100001 BIB 9 28 C180000100002 TITLE Direct measurements of (p,gamma) cross-sections at C180000100003 astrophysical energies using radioactive beams and C180000100004 the Daresbury Recoil Separator C180000100005 AUTHOR (D.W.Bardayan,K.A.Chipps,R.P.Fitzgerald,J.C.Blackmon, C180000100006 K.Y.Chae,A.E.Champagne,U.Greife,R.Hatarik,R.L.Kozub, C180000100007 C.Matei,B.H.Moazen,C.D.Nesaraja,S.D.Pain,W.A.Peters, C180000100008 S.T.Pittman, J.F.Shriner Jr,M.S.Smith) C180000100009 INSTITUTE (1USAORL,1USACSM,1USANCA,1USALSU,1USATEN,1USARUT, C180000100010 1USATTU,1USAOAU) C180000100011 REFERENCE (J,EPJ/A,42,457,2009) C180000100012 FACILITY (VDGT,1USAORL) Experiment performed at the HRIBF C180000100013 facility at Oak Ridge National Laboratory using C180000100014 primary cyclotron ORIC, 25-MV tandem Van de Graaff C180000100015 and the Daresbury Recoil Separator. C180000100016 SAMPLE Windowless hydrogen gas target. Target areal density C180000100017 was (6.9 +- 0.2)E+18 atoms/cm2 at 5.5 torr of H2 C180000100018 DETECTOR (SPEC)The Daresbury Recoil Separator (DRS) has been C180000100019 used to separate the recoils of interest from the C180000100020 unreacted primary beam. The main elements are two C180000100021 Wien velocity filters. The system is appended with a C180000100022 magnetic dipole and three quadrupole triplets to C180000100023 focus selected reaction product onto focal plane. C180000100024 (IOCH)Selected ions were identified in focal plane C180000100025 with a segmented, isobutane filled gas ionization C180000100026 counter C180000100027 METHOD (OLMS) Mass separation of reaction products by two C180000100028 Wien filters was used. C180000100029 HISTORY (20100510C) Compiled by S.H. C180000100030 ENDBIB 28 0 C180000100031 NOCOMMON 0 0 C180000100032 ENDSUBENT 31 0 C180000199999 SUBENT C1800002 20100510 C101C180000200001 BIB 5 10 C180000200002 REACTION (1-H-1(9-F-17,G),,WID/STR) C180000200003 STATUS (TABLE) Data taken from text p. 459. Resonance C180000200004 energy taken from Phys. Rev. Lett. 83,45,1999. C180000200005 INC-SOURCE A mixed 17F/17O beam (17F was typically 35% of C180000200006 the total beam) was used to bombard the windowless C180000200007 hydrogen gas target. Beam currents as high as 2E+7 C180000200008 17F ions/s were obtained. C180000200009 ERR-ANALYS (ERR-S) Statistical uncertainty C180000200010 (ERR-SYS) Systematic uncertainty C180000200011 REL-REF (R,C0759003,D.W.Bardayan+,J,PRL,83,45,1999) C180000200012 ENDBIB 10 0 C180000200013 NOCOMMON 0 0 C180000200014 DATA 4 1 C180000200015 EN-RES DATA ERR-S ERR-SYS C180000200016 KEV MILLI-EV MILLI-EV MILLI-EV C180000200017 599.8 33.0 14.0 17.0 C180000200018 ENDDATA 3 0 C180000200019 ENDSUBENT 18 0 C180000299999 SUBENT C1800003 20100510 C101C180000300001 BIB 4 10 C180000300002 REACTION (1-H-1(4-BE-7,G)5-B-8,,SIG) C180000300003 STATUS (TABLE) Data taken from text p. 460 of the reference. C180000300004 INC-SOURCE A mixed 7BeO/7LiO beam was injected into the Tandem C180000300005 Van de Graaff accelerator where the molecules were C180000300006 broken up during stripping at the terminal. Positive C180000300007 7Be/7Li ions were then further accelerated before C180000300008 delivery to the DRS. Beam currents peaked at about C180000300009 2E+7 7Be/s with typical beam compositions of 7Li/7Be C180000300010 = 7/1. C180000300011 ERR-ANALYS (ERR-S) Uncertainty dominated by statistics C180000300012 ENDBIB 10 0 C180000300013 NOCOMMON 0 0 C180000300014 DATA 3 1 C180000300015 EN-CM DATA ERR-S C180000300016 MEV MICRO-B MICRO-B C180000300017 1.5 1.12 0.27 C180000300018 ENDDATA 3 0 C180000300019 ENDSUBENT 18 0 C180000399999 SUBENT C1800004 20100510 C101C180000400001 BIB 4 7 C180000400002 REACTION (1-H-1(4-BE-7,G)5-B-8,,SIG,,SFC) C180000400003 STATUS (TABLE) Data taken from text p. 460 of the reference. C180000400004 (DEP,C1800003) C180000400005 ERR-ANALYS (ERR-S) Uncertainty dominated by statistics C180000400006 ANALYSIS Astrophysical S factor determined from cross section C180000400007 determined in this work using cluster-model theory of C180000400008 Descouvemont and Baye. C180000400009 ENDBIB 7 0 C180000400010 NOCOMMON 0 0 C180000400011 DATA 3 1 C180000400012 EN-CM DATA ERR-S C180000400013 KEV B*EV B*EV C180000400014 300.0 26.8 6.5 C180000400015 ENDDATA 3 0 C180000400016 ENDSUBENT 15 0 C180000499999 ENDENTRY 4 0 C180099999999