ENTRY C1882 20120523 C118C188200000001 SUBENT C1882001 20120523 C118C188200100001 BIB 10 42 C188200100002 TITLE Direct studies of low-energy resonances in C188200100003 31P(p,alpha)28Si and 35Cl(p,alpha)32S C188200100004 AUTHOR (B.H.Moazen,C.Matei,D.W.Bardayan,J.C.Blackmon, C188200100005 K.Y.Chae,K.A.Chipps,R.Hatarik,K.L.Jones,R.L.Kozub, C188200100006 M.Matos,C.D.Nesaraja,P.D.O'Malley,S.D.Pain,T.Pelham, C188200100007 W.A.Peters,S.T.Pittman,J.F.Shriner Jr,M.S.Smith) C188200100008 INSTITUTE (1USATEN,1USAOAU,1USAORL,1USALSU,1USACSM,1USARUT, C188200100009 1USATTU,2UK SUR) C188200100010 REFERENCE (J,EPJ/A,47,66,2011) C188200100011 FACILITY (VDGT,1USAORL) Experiment performed at the Holifield C188200100012 Radioactive Ion Beam Facility at ORNL C188200100013 SAMPLE Hydrogen gas in the scattering chamber at pressures C188200100014 up to 3 torr C188200100015 DETECTOR (SISD) The alpha particles and heavy recoils were C188200100016 detected in coincidence within the gas-filled chamber C188200100017 by the SIDAR silicon detector array and a Micron Type C188200100018 S1 detector, respectively. Eight SIDAR detectors were C188200100019 arranged in a flat annular array with sixteen 0.5-cm C188200100020 strips covering radii from 5 to 13 cm.S1-style 300 C188200100021 micron thick detectors has four quadrants of 16 rings C188200100022 subtending radii from 2.4 to 4.8 cm in 1.5 mm strips. C188200100023 The SIDAR array was located 115mm from the entrance C188200100024 of the chamber, while the S1 detector was positioned C188200100025 220 mm downstream of SIDAR. C188200100026 METHOD New method developed for resonant (p,a) studies was C188200100027 used. In this method, the reaction vertex can be C188200100028 determined from the energy of alpha particles C188200100029 detected in SIDAR array. Inverse kinematics was used, C188200100030 all heavy recoils were detected in S1 detector. C188200100031 ERR-ANALYS (ERR-1) Systematic uncertainty in measured stopping C188200100032 power of 31P ions in hydrogen gas C188200100033 (ERR-2) Systematic uncertainty in the strength of C188200100034 the 244Cm alpha source used for determining C188200100035 the solid angle of the monitor detectors C188200100036 (ERR-3) Systematic uncertainty in the effective solid C188200100037 angle coverage from uncertainties in the C188200100038 angular distribution C188200100039 (ERR-4) Systematic uncertainty in the carbon foil C188200100040 thickness due to uncertainties in the stopping C188200100041 power of alpha particles in carbon. C188200100042 (ERR-T) Total uncertainty C188200100043 HISTORY (20120523C) Compiled by S.H. C188200100044 ENDBIB 42 0 C188200100045 COMMON 4 3 C188200100046 ERR-1 ERR-2 ERR-3 ERR-4 C188200100047 PER-CENT PER-CENT PER-CENT PER-CENT C188200100048 2.0 3.0 6.0 6.0 C188200100049 ENDCOMMON 3 0 C188200100050 ENDSUBENT 49 0 C188200199999 SUBENT C1882002 20120523 C118C188200200001 BIB 3 4 C188200200002 REACTION (15-P-31(P,A),,WID/STR) C188200200003 STATUS (TABLE) Data taken from text pp.4,5 of the reference C188200200004 INC-SOURCE Pure beam of stable 31P accelerated by the Van C188200200005 de Graaff accelerator at HRIBF C188200200006 ENDBIB 4 0 C188200200007 NOCOMMON 0 0 C188200200008 DATA 3 2 C188200200009 EN-RES-CM DATA ERR-T C188200200010 KEV EV EV C188200200011 600.0 2.2E-02 0.7E-02 C188200200012 622.0 0.99 0.10 C188200200013 ENDDATA 4 0 C188200200014 ENDSUBENT 13 0 C188200299999 SUBENT C1882003 20120523 C118C188200300001 BIB 3 4 C188200300002 REACTION (17-CL-35(P,A),,WID/STR) C188200300003 STATUS (TABLE) Data taken from text p.6 of the reference C188200300004 INC-SOURCE Pure beam of stable 35Cl accelerated by the Van C188200300005 de Graaff accelerator at HRIBF C188200300006 ENDBIB 4 0 C188200300007 NOCOMMON 0 0 C188200300008 DATA 3 1 C188200300009 EN-RES-CM DATA ERR-T C188200300010 KEV EV EV C188200300011 610.0 1.2E-02 2.0E-03 C188200300012 ENDDATA 3 0 C188200300013 ENDSUBENT 12 0 C188200399999 ENDENTRY 3 0 C188299999999