ENTRY D0360 20050824 D042D036000000001 SUBENT D0360001 20050824 D042D036000100001 BIB 14 39 D036000100002 TITLE Measurement and analysis of isomeric cross section D036000100003 ratios in the reaction 93Nb(a,2n)95Tc: D036000100004 Pre-equilibrium reaction mechanism D036000100005 AUTHOR (S.Mukherjee,N.L.Singh,G.Kiran Kumar,L.Chaturvedi) D036000100006 INSTITUTE (3INDBDA,3INDBHU) D036000100007 REFERENCE (J,PR/C,72,014609,2005) D036000100008 FACILITY (CYCLO,3INDVEC) IUCF-USA cyclotron facility and at the D036000100009 Variable Energy-Centre D036000100010 METHOD (STTA,ACTIV,GSPEC) activation technique followed by D036000100011 offline gamma-ray spectrometry. D036000100012 Two consecutive alpha-beam irradiations were carried D036000100013 out for the energy range 120 to 50 MeV on two separate D036000100014 stacks of foils, each of about 2h duration. D036000100015 SAMPLE Spectroscopically pure (99.99%) niobium (Nb) targets D036000100016 (21 mg/cm2) and D036000100017 aluminum catchers (7 mg/cm2)/degraders (7 mg/cm2). D036000100018 MONITOR (13-AL-27(A,X)11-NA-24,,SIG) For the flux measurement, D036000100019 the 27A1(a, a2pn)24Na reaction was used as a D036000100020 secondary standard D036000100021 MONIT-REF (,H.J.Probst+,J,ARI,27,431,1976) D036000100022 DECAY-DATA (43-TC-95-G,20.0HR,DG,765.,0.9982,DG,948.,0.021, D036000100023 DG,1074.,0.042) D036000100024 (43-TC-95-M,61.D,DG,204.,0.662,DG,582.,0.325, D036000100025 DG,835.,0.281) D036000100026 DETECTOR (HPGE) HPGe detector coupled to a 4K channel analyzer. D036000100027 ERR-ANALYS (ERR-T) The total error in each cross section was D036000100028 obtained by combining the following individual errors D036000100029 in quadrature: D036000100030 * The error in the alpha-beam flux was around 4-7%. D036000100031 * The efficiency of the gamma detector was known withD036000100032 in an uncertainty of 3-5%. D036000100033 * The error in the initial count rate at the end of D036000100034 the irradiation as determined by the least D036000100035 squares fitting procedure was about 0.5-2.5%. D036000100036 * The error in the decay data used was <1% D036000100037 * the error in the target thickness was 0.5-1.5%. D036000100038 STATUS (TABLE) Tables are recieved from Dr. S.Mukherjee D036000100039 (APRVD) Entry approved by Dr. S.Mukherjee D036000100040 HISTORY (20050824C) SD D036000100041 ENDBIB 39 0 D036000100042 NOCOMMON 0 0 D036000100043 ENDSUBENT 42 0 D036000199999 SUBENT D0360002 20050824 D042D036000200001 BIB 1 2 D036000200002 REACTION 1(41-NB-93(A,2N)43-TC-95,,SIG) D036000200003 2(41-NB-93(A,2N)43-TC-95-G/T,,SIG/RAT) D036000200004 ENDBIB 2 0 D036000200005 NOCOMMON 0 0 D036000200006 DATA 5 22 D036000200007 EN DATA 1ERR-T 1DATA 2ERR-T 2 D036000200008 MEV MB MB NO-DIM NO-DIM D036000200009 112.7 3.4 0.3 0.925 0.0093 D036000200010 107.3 2.5 0.23 0.929 0.0093 D036000200011 101.8 2.8 0.24 0.929 0.0093 D036000200012 96.4 4.4 0.33 0.933 0.0094 D036000200013 91.2 5.28 0.37 0.923 0.0092 D036000200014 86.1 6.33 0.43 0.924 0.0092 D036000200015 81. 7.76 0.6 0.929 0.0093 D036000200016 75.9 9.7 0.6 0.938 0.0094 D036000200017 75. 11.18 0.81 0.934 0.0093 D036000200018 70.6 12. 0.7 0.931 0.0093 D036000200019 69.2 14.76 0.81 0.941 0.0094 D036000200020 64.4 15. 0.9 0.927 0.0093 D036000200021 63.2 20.47 1.01 0.937 0.0094 D036000200022 57.2 25.61 1.51 0.925 0.0093 D036000200023 51.6 33.01 1.92 0.914 0.0093 D036000200024 46.2 54.55 3.02 0.925 0.0093 D036000200025 40.2 114.25 7.02 0.936 0.0094 D036000200026 34.6 467. 28.1 0.95 0.0095 D036000200027 28.4 858. 50.3 0.921 0.0092 D036000200028 24.2 1046. 95.7 0.908 0.0098 D036000200029 20.8 694. 61.8 0.878 0.0088 D036000200030 17.3 153. 14.2 0.882 0.0088 D036000200031 ENDDATA 24 0 D036000200032 ENDSUBENT 31 0 D036000299999 ENDENTRY 2 0 D036099999999