ENTRY S0076 20220925 S032S007600000001 SUBENT S0076001 20220925 S032S007600100001 BIB 12 64 S007600100002 TITLE A method for the measurement of elastic scattering S007600100003 angular distribution at HIRFL-RIBLL S007600100004 AUTHOR (Y.Y.Yang,J.S.Wang,Q.Wang,J.B.Ma,M.R.Huang,J.L.Han, S007600100005 P.Ma,S.L.Jin,Z.Bai,Q.Hu,L.Jin,J.B.Chen,R.Wada, S007600100006 Z.Y.Sun,R.F.Chen,X.Y.Zhang,Z.G.Hu,X.H.Yuan,X.G.Cao, S007600100007 Z.G.Xu,S.W.Xu,C.Zhen,Z.Q.Chen,Z.Chen,S.Z.Chen,C.M.Du, S007600100008 L.M.Duan,F.Fu,B.X.Gou,J.Hu,J.J.He,X.G.Lei,S.L.Li, S007600100009 Y.Li,Q.Y.Lin,L.X.Liu,F.D.Shi,S.W.Tang,G.Xu,X.Xu, S007600100010 L.Y.Zhang,X.H.Zhang,W.Zhang,M.H.Zhao,Y.H.Zhang,H.S.Xu) S007600100011 INSTITUTE (3CPRIMP,3CPRUCA) S007600100012 REFERENCE (J,NIM/A,701,1,2013) S007600100013 #doi:10.1016/j.nima.2012.10.088 S007600100014 FACILITY (CYCLO,3CPRIMP) Experiment was performed at the S007600100015 Radioactive Ion Beam Line in Lanzhou (RIBLL). S007600100016 INC-SOURCE (FRAGM) The radioactive nuclear beams of 7Be, together S007600100017 with the contaminants of 9C, 8B and 6Li ions, were S007600100018 produced by the fragmentation of a 54.2 MeV/u 12C S007600100019 primary beam bombarding a 2615 um thick Be target S007600100020 located at the first focal point of RIBLL. S007600100021 The typical intensity of the 7Be secondary beam was S007600100022 5E3 particles per second with a primary beam S007600100023 intensity of 300 enA. The secondary beams were S007600100024 identified by combining the measured TOF and magnetic S007600100025 rigidity value. S007600100026 SAMPLE The target used was a self supporting foil of natural S007600100027 Pb with a thickness of 4.2 mg/cm2. The target had the S007600100028 following isotopic composition: 208Pb 52.3%, S007600100029 207Pb 22.6%, 206Pb 23.6% and 204Pb 1.48%. S007600100030 DETECTOR (PPAC) Each PPAC consists of two anodes and one S007600100031 cathode. The cathode plane in the middle of detector S007600100032 is a 2 um thick Mylar foil coated with a thin S007600100033 Au-layer on both sides. The two anode planes are S007600100034 located symmetrically on both side of the cathode and S007600100035 consisted of gold-plated tungsten wires. The wires, S007600100036 50 um in diameter, are spaced by 1 mm pitch. There are S007600100037 80 wires in both X and Y directions and therefore the S007600100038 sensitive area is 80*80 mm2. S007600100039 (SCIN) Two 50 mm thick plastic scintillation detectors S007600100040 were used to measure TOF. S007600100041 (TELES,SISD,SI)The scattered particles were detected S007600100042 by SI DeltaE-E telescopes (denoted as DeltaE-E1 and S007600100043 DeltaE-E2 in Fig.3). Each telescope consists of one S007600100044 double-sided silicon strip DE detector(DSSD) of 150 S007600100045 mm in thickness and 48*48 mm2 in area, and one single S007600100046 silicon detector (SSD) of 1500 mm in thickness and S007600100047 50*50 mm2 in area. S007600100048 PPAC and scintillation detectors were used for S007600100049 detection of incident 7Be, while the TELES were used S007600100050 for detection of outgoing particle. S007600100051 METHOD (TOF) The secondary beams were identified by combining S007600100052 the measured TOF and magnetic rigidity value. S007600100053 (EDE) The scattered particles were identified by EDE S007600100054 telescopes. S007600100055 ERR-ANALYS (ERR-1) The uncertainty is due to the scattering S007600100056 events on the windows of PPACs and energy dispersion S007600100057 of secondary beam. S007600100058 (ERR-S) The statistical uncertainties. S007600100059 (ANG-ERR) Uncertainty of outgoing angle. S007600100060 STATUS (TABLE) Fig.9 of Nucl.Instr.Meth.A,701,1,2013 and S007600100061 provided by author. S007600100062 HISTORY (20130520C) Compiled by ZHUANG Youxiang and CHEN S007600100063 Guochang (CNDC) S007600100064 (20220925A) Jimin Wang: PRJFS --> CYCLO in FACILITY, S007600100065 and major revisions in 002. S007600100066 ENDBIB 64 0 S007600100067 COMMON 2 3 S007600100068 ERR-1 EN S007600100069 PER-CENT MEV/A S007600100070 10.0 17.9 S007600100071 ENDCOMMON 3 0 S007600100072 ENDSUBENT 71 0 S007600199999 SUBENT S0076002 20220925 S032S007600200001 BIB 2 5 S007600200002 REACTION (82-PB-0(4-BE-7,SCT)82-PB-0,,DA,,RTH) S007600200003 HISTORY (20220925A) Jimin Wang: 27.87 --> 27.88 in ANG-CM, S007600200004 and changed relative uncertainty into absolute S007600200005 uncertainty for ERR-S according to the author's S007600200006 suggestion. REACTION SF3: EL -> SCT. S007600200007 ENDBIB 5 0 S007600200008 NOCOMMON 0 0 S007600200009 DATA 4 22 S007600200010 ANG-CM ANG-ERR DATA ERR-S S007600200011 ADEG ADEG NO-DIM NO-DIM S007600200012 4.65 0.18 0.984 0.027 S007600200013 5.68 0.18 0.992 0.022 S007600200014 6.72 0.18 0.997 0.020 S007600200015 7.75 0.18 0.979 0.019 S007600200016 8.79 0.18 1.037 0.020 S007600200017 9.82 0.18 1.026 0.020 S007600200018 10.85 0.18 0.972 0.022 S007600200019 11.88 0.18 1.025 0.025 S007600200020 12.92 0.18 1.037 0.029 S007600200021 13.95 0.36 1.169 0.034 S007600200022 14.98 0.36 1.166 0.038 S007600200023 16.02 0.36 1.096 0.041 S007600200024 17.05 0.36 0.999 0.043 S007600200025 18.08 0.36 0.898 0.044 S007600200026 19.11 0.36 0.681 0.042 S007600200027 20.14 0.31 0.577 0.049 S007600200028 21.18 0.31 0.511 0.047 S007600200029 22.21 0.31 0.331 0.040 S007600200030 23.24 0.31 0.251 0.036 S007600200031 24.27 0.31 0.181 0.031 S007600200032 25.81 0.31 0.117 0.020 S007600200033 27.88 0.31 0.044 0.014 S007600200034 ENDDATA 24 0 S007600200035 ENDSUBENT 34 0 S007600299999 ENDENTRY 2 0 S007699999999