ENTRY C1479 20181107 C181C147900000001 SUBENT C1479001 20181107 C181C147900100001 BIB 10 31 C147900100002 INSTITUTE (1CANTMF,3KORNSU,1USAWAU) C147900100003 REFERENCE (J,NP/A,718,113,2003) C147900100004 AUTHOR (S.H.Park,A.R.Junghans,E.C.Mohrmann,K.A.Snover, C147900100005 T.D.Steiger,E.G.Adelberger,J.M.Cajandian,H.E.Swanson, C147900100006 L.Buchmann,A.Zyuzin,A.Laird) C147900100007 TITLE A new measurement of 7Be(p,g)8B cross section and its C147900100008 astrophysical meaning C147900100009 FACILITY (VDGT,1USAWAU) Tandem van de Graaff Accelerator at the C147900100010 University of Washington. C147900100011 INC-SOURCE A monoenergetic proton beam C147900100012 DETECTOR (SIBAR) A silicon surface barrier detector (alpha C147900100013 counting detector) with an active area of 450 mm2 C147900100014 and a nominal thickness of 40 microm was used to C147900100015 count the alpha particles from the reaction. C147900100016 SAMPLE The 7Be (from TRIUMF) was separated from lithium with C147900100017 a glass filter in a pH 8 - 9 solution, and left in C147900100018 Be0 form. Then the 7Be underwent reductive vacuum C147900100019 evaporation onto a catcher crucible. The target C147900100020 backing was made from molybdenum consisting of a flat C147900100021 plate with a 4 mm-diameter, 1.4 mm-height post in the C147900100022 center. C147900100023 MONITOR A calibration detector was 47.42 mm away from the C147900100024 target, and a 0.700 inches-diameter collimator was C147900100025 placed in front of the calibration detector to C147900100026 determine precisely the geometrical solid angle of C147900100027 the CY counting detector. The solid angle ratio of C147900100028 the counting and calibration detectors was determined C147900100029 with the 7Li(d,p)8Li resonance at Ed = 770 keV. C147900100030 HISTORY (20061211C) DR C147900100031 (20070507A) DR "CALC" added in SF9 C147900100032 (20181104U) OS. Corrections in sub.2, minor BIB corr. C147900100033 ENDBIB 31 0 C147900100034 COMMON 1 3 C147900100035 EN-CM C147900100036 MEV C147900100037 0. C147900100038 ENDCOMMON 3 0 C147900100039 ENDSUBENT 38 0 C147900199999 SUBENT C1479002 20181107 C181C147900200001 BIB 5 19 C147900200002 REACTION (4-BE-7(P,G)5-B-8,,SIG,,SFC) C147900200003 ANALYSIS Extrapolated zero-energy facor S17(0) C147900200004 ERR-ANALYS (ERR-S,1.0,2.9) Statistical error 1.0 - 2.9 % C147900200005 (ERR-1) Beam-target inhomogeneity 1.0 % C147900200006 (ERR-2) Integrated beam flux 0.8 % C147900200007 (ERR-3) Target activity 1.9 % C147900200008 (ERR-4) Spectrum cut 0.7 % C147900200009 (ERR-5) Backscattering 0.5 % C147900200010 (ERR-6) Timing cycle 0.2 % C147900200011 (ERR-7,0.2,0.6) Proton energy calibration, 0.2 - 0.6 % C147900200012 (ERR-8,,1.0) Target thickness, up to 1.0 % C147900200013 (ERR-9,,1.1) Target composition, up to 1.1 % C147900200014 (ERR-T) Total experimental uncertainty C147900200015 The uncertainty due to the solid angle ratio is not C147900200016 included. C147900200017 (ERR-10) Theoretical uncertainty C147900200018 STATUS (TABLE) Data taken from text. C147900200019 HISTORY (20181104U) REACTION SF9=CALC removed, ERR-ANALYS C147900200020 changed C147900200021 ENDBIB 19 0 C147900200022 COMMON 6 3 C147900200023 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 C147900200024 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT C147900200025 1.0 0.8 1.9 0.7 0.5 0.2 C147900200026 ENDCOMMON 3 0 C147900200027 DATA 3 1 C147900200028 DATA ERR-T ERR-10 C147900200029 B*EV B*EV B*EV C147900200030 22.3 0.7 0.5 C147900200031 ENDDATA 3 0 C147900200032 ENDSUBENT 31 0 C147900299999 ENDENTRY 2 0 C147999999999