ENTRY C2704 20220126 C215C270400000001 SUBENT C2704001 20220126 C215C270400100001 BIB 10 47 C270400100002 TITLE A technique for the study of (p,n) reactions with C270400100003 unstable isotopes at energies relevant to astrophysics C270400100004 AUTHOR (P.Gastis,G.Perdikakis,G.P.A.Berg,A.C.Dombos,A.Estrade,C270400100005 A.Falduto,M.Horoi,S.N.Liddick,S.Lipschutz,S.Lyons, C270400100006 F.Montes,A.Palmisano,J.Pereira,J.S.Randhawa,T.Redpath, C270400100007 M.Redshaw,J.Schmitt,J.R.Sheehan,M.K.Smith,P.Tsintari, C270400100008 A.C.C.Villari,K.Wang,R.G.T.Zegers) C270400100009 INSTITUTE (1USAMSU,1USANOT) C270400100010 (1USAUSA) Central Michigan University, Mt. Pleasant C270400100011 REFERENCE (J,NIM/A,985,164603,2021) C270400100012 FACILITY (CYCTM,1USAMSU) Experiment performed at coupled C270400100013 cyclotron facility of the National Superconducting C270400100014 Cyclotron Laboratory using the re-accelerator ReA3 C270400100015 facility C270400100016 SAMPLE Heavy-ion beam impinged on a solid target made out of C270400100017 high-density polyethylene (C2H4)n. Target's effective C270400100018 thickness was (3.95+-0.4) mu-m and the corresponding C270400100019 areal density of hydrogen in the target C270400100020 was (3.18+-0.32)E+19 atoms/cm2 C270400100021 DETECTOR (SCIN) Neutrons from the (p,n) reactions were C270400100022 detected using low energy neutron detector array C270400100023 LENDA. In this experiment LENDA consisted of 14 C270400100024 BC-408 scintillators arranged in two consecutive C270400100025 layers downstream of the target, aligned at 35 cm and C270400100026 41.5 cm from the target. The angular acceptance of C270400100027 LENDA in the laboratory frame was from 5 deg to 52 deg.C270400100028 (MAGSP) Heavy reaction products were momentum C270400100029 analysed in ReA3 beam line, consisting of C270400100030 spectrometer dipole magnet, quadrupole multiplets, C270400100031 4-jaw slit system at the focal plane of the C270400100032 spectrometer magnet to block the deflected beam ions C270400100033 and a piece of standard beam line to the Si detector. C270400100034 (SISD) Reaction products were identified at the end C270400100035 of ReA3 beamline using double sided Si strip C270400100036 detector. The detector has an active area of 40.3 x C270400100037 75.0 mm2 and consists of 64 vertical strips on the C270400100038 junction side and 4 horizontal strips on the Ohmic C270400100039 side. The effective thickness of the detector was C270400100040 1000 mu-m C270400100041 METHOD (COINC) Coincidence between SISD detector and LENDA C270400100042 array was required. Inverse kinematics was used. C270400100043 (TOF,PSD) Neutron energy was determined by time-of- C270400100044 flight. Start time was provided by SiSD detector, stop C270400100045 signal was provided by LENDA array. C270400100046 ANALYSIS Final result was determined as weighted average of C270400100047 two runs. C270400100048 HISTORY (20220126C) Compiled by S.H. C270400100049 ENDBIB 47 0 C270400100050 NOCOMMON 0 0 C270400100051 ENDSUBENT 50 0 C270400199999 SUBENT C2704002 20220126 C215C270400200001 BIB 4 13 C270400200002 REACTION (18-AR-40(P,N)19-K-40,PAR,SIG) C270400200003 ERR-ANALYS (ERR-1,8.2,15.2) Uncertainty in product yield C270400200004 (ERR-2) Uncertainty in beam current C270400200005 (ERR-3) Uncertainty in target areal density C270400200006 (ERR-4) Uncertainty in LENDA solid angle C270400200007 (ERR-5) Uncertainty in total neutron efficiency C270400200008 (ERR-6) Uncertainty in charge-state fraction C270400200009 (ERR-7) Uncertainty in product transmission C270400200010 (ERR-T) Total uncertainty C270400200011 FLAG (1.) result of run 1 C270400200012 (2.) result of run 2 C270400200013 (3.) weighted average value of two runs C270400200014 STATUS (TABLE) Data taken from tab.5 of the reference C270400200015 ENDBIB 13 0 C270400200016 COMMON 7 6 C270400200017 E-LVL ERR-2 ERR-3 ERR-4 ERR-5 ERR-6 C270400200018 ERR-7 C270400200019 KEV PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT C270400200020 PER-CENT C270400200021 800.14 10. 10. 5.5 11. 10. C270400200022 12. C270400200023 ENDCOMMON 6 0 C270400200024 DATA 5 3 C270400200025 EN-CM EN-RSL DATA ERR-T FLAG C270400200026 MEV MEV MB MB NO-DIM C270400200027 3.36 0.08 21.9 6.3 1. C270400200028 3.36 0.05 13.0 3.3 2. C270400200029 3.36 0.06 14.9 2.9 3. C270400200030 ENDDATA 5 0 C270400200031 ENDSUBENT 30 0 C270400299999 ENDENTRY 2 0 C270499999999