ENTRY D4427 20230426 D442700000001 SUBENT D4427001 20230426 20240316 D442700100001 BIB 10 38 D442700100002 TITLE Cross section measurement of the 144Sm(a,n)147Gd D442700100003 reaction for studying the a-nucleus optical D442700100004 potential at astrophysical energies D442700100005 AUTHOR (Gy.Gyurky,P.Mohr,A.Angyal,Z.Halasz, D442700100006 G.G.Kiss,Zs.Matyus,T.N.Szegedi,T.Szucs,Zs.Fulop) D442700100007 INSTITUTE (3HUNDEB,3HUNKOS) D442700100008 REFERENCE (J,PR/C,107,025803,2023) D442700100009 #doi:10.1103/PhysRevC.107.025803 D442700100010 FACILITY (CYCLO,3HUNDEB) D442700100011 SAMPLE Sm2O3 with natural isotopic abundances evaporated D442700100012 by an electron beam onto 6um Al backing. D442700100013 The areal density of the Sm atoms was measured with D442700100014 Rutherford backscattering spectrometry (RBS). D442700100015 Thickness of the five targets was in the range of D442700100016 (0.5-1.0)E+18 atoms/cm2. D442700100017 DETECTOR (LEGE) A thin crystal high-purity germanium detector D442700100018 optimal for the detection of low-energy g-radiation. D442700100019 METHOD (ACTIV) Irradiation was done in vacuum with 1 euA beam D442700100020 of alpha particles. The lengths of irradiations D442700100021 varied between 2 and 24hours. D442700100022 (SITA) Targets were irradiated one by one. D442700100023 Decay data were taken from the latest nuclear data D442700100024 compilation. D442700100025 The effective energy calculation is based on the D442700100026 energy loss of the beam in the target layer. D442700100027 ERR-ANALYS (EN-ERR) The uncertainty of the effective energy is D442700100028 made up by the uncertainty of the primary beam energy D442700100029 (0.3%), the target thickness, and the stopping power D442700100030 uncertainty. D442700100031 (ERR-T) The uncertainty of the cross section is D442700100032 calculated as the quadratic sum of the error sources. D442700100033 (ERR-1) target thickness (5%) D442700100034 (ERR-2) energy loss calculation (5%) D442700100035 (ERR-3) detector efficiency (5%) D442700100036 (ERR-4) beam current integration (3%) D442700100037 (ERR-5) beam intensity (3%) D442700100038 (ERR-S,,5.) statistical uncertainty (<5%) D442700100039 HISTORY (20230426C) D442700100040 ENDBIB 38 0 D442700100041 COMMON 5 3 D442700100042 ERR-1 ERR-2 ERR-3 ERR-4 ERR-5 D442700100043 PER-CENT PER-CENT PER-CENT PER-CENT PER-CENT D442700100044 5.0 5.0 5.0 3.0 3.0 D442700100045 ENDCOMMON 3 0 D442700100046 ENDSUBENT 45 0 D442700199999 SUBENT D4427002 20230426 20240316 D442700200001 BIB 3 6 D442700200002 REACTION (62-SM-144(A,N)64-GD-147,,SIG) D442700200003 DECAY-DATA (64-GD-147,38.06HR,DG,229.2,0.577, D442700200004 DG,370.0,0.157, D442700200005 DG,396.0,0.314, D442700200006 DG,929.0,0.184) D442700200007 STATUS (TABLE,,Gy.Gyurky+,J,PR/C,107,025803,2023) Table I D442700200008 ENDBIB 6 0 D442700200009 NOCOMMON 0 0 D442700200010 DATA 5 8 D442700200011 EN EN-CM EN-ERR DATA ERR-T D442700200012 MEV MEV MEV MB MB D442700200013 13.0 12.62 0.04 0.139 0.016 D442700200014 14.0 13.60 0.04 1.36 0.12 D442700200015 15.0 14.57 0.05 8.03 0.73 D442700200016 16.0 15.54 0.05 31.0 2.8 D442700200017 17.0 16.52 0.05 98.3 9.0 D442700200018 18.0 17.49 0.06 188. 17. D442700200019 18.9 18.33 0.11 281. 25. D442700200020 20.0 19.43 0.06 417. 36. D442700200021 ENDDATA 10 0 D442700200022 ENDSUBENT 21 0 D442700299999 ENDENTRY 2 0 D442799999999