ENTRY A0582 20200214 A093A0582 0 1 SUBENT A0582001 20200214 A093A0582 1 1 BIB 15 58 A0582 1 2 TITLE Excitation function measurement and reaction mechanism A0582 1 3 analysis for alpha-induced reactions on 197-Au A0582 1 4 AUTHOR (N.Chakravarty, P.K.Sarkar, Maitreyee Nandy, A0582 1 5 Sudip Ghosh) A0582 1 6 REFERENCE (J,JP/G,24,151,1998) A0582 1 7 REL-REF (R,,U.Reus+,J,AND,29,1,1983) Decay data A0582 1 8 (M,D6290001,N.Chakravarty+,J,PR/C,45,1171,1992) A0582 1 9 Method of analysis. A0582 1 10 INSTITUTE (1USASJS,3INDVEC,3INDSAH) A0582 1 11 FACILITY (ISOCY,3INDVEC) A0582 1 12 MONITOR (13-AL-27(A,3P)12-MG-28,,SIG) A0582 1 13 (13-AL-27(A,X)11-NA-24,CUM,SIG) A0582 1 14 (13-AL-27(A,X)11-NA-22,CUM,SIG) A0582 1 15 MONIT-REF (B0142001,U.Martens+,R,KFK-1083,1969) A0582 1 16 SAMPLE To minimize the uncertainties in the projectile A0582 1 17 energies at each target foil, thinly stacked foils withA0582 1 18 only three targets were used in each stack. Aluminium A0582 1 19 foils of 6.85 mg/cm**2 were used as energy degraders A0582 1 20 and internal flux monitor. For measuring the cross A0582 1 21 sections of relatively short-lived nuclides, 1.0 A0582 1 22 mg/cm**2 thickness 197-Au deposited on Al spacer foils A0582 1 23 served as targets. To obtain measurable yields of A0582 1 24 long-lived residuals, self-supporting 46.6 mg/cm**2 A0582 1 25 thick 197-Au targets were used in the stack. Both the A0582 1 26 target and the degrader foils were 0F 99.99% purity. A0582 1 27 METHOD (STTA) See SAMPLE A0582 1 28 (ACTIV) The irradiation times were optimized according A0582 1 29 to half-lives of residual and the irradiations were A0582 1 30 performed in duplicate. A0582 1 31 (BCINT) The flux values were in good agreement with A0582 1 32 flux values obtained from monitor reactions. Their A0582 1 33 average was used to determine the cross sections. A0582 1 34 (GSPEC) The decay of characteristic gamma peaks was A0582 1 35 followed for more than five half-lives except for A0582 1 36 195-Au for which only two half-lives were followed. A0582 1 37 DETECTOR (HPGE) A0582 1 38 ERR-ANALYS (ERR-S) The error assigned is the root mean square of A0582 1 39 the statistical errors associated with the individual A0582 1 40 cross sections. A0582 1 41 (ERR-1) uncertainty in the energy. A0582 1 42 (ERR-2) uncertainty in the flux measurement A0582 1 43 (ERR-3) uncertainty in the detector efficiency A0582 1 44 ANALYSIS (DECAY) A0582 1 45 ADD-RES (COMP) The excitation functions were analysed in terms A0582 1 46 of direct, pre-equilibrium and evaporation emissions. A0582 1 47 The two most commonly used models of pre-equilibrium A0582 1 48 reactions, the exciton and the hybrid models, have bothA0582 1 49 been used and compared. The choice of the initial A0582 1 50 exciton number, the role of the pre-equilibrium clusterA0582 1 51 and multiple nucleon emissions have been investigated. A0582 1 52 The direct emission of cluster are found to A0582 1 53 significantly affect the excitation functions of 197-HgA0582 1 54 and Au isotopes. A0582 1 55 HISTORY (20030805C) By CAJAD A0582 1 56 (20040213U) Last checking has been done. A0582 1 57 (20200214A) SD: Subents 004,009,010,011 deleted (data A0582 1 58 are from another publ. see D6190). STATUS moved to A0582 1 59 Subents 002-011. A0582 1 60 ENDBIB 58 0 A0582 1 61 COMMON 3 3 A0582 1 62 ERR-1 ERR-2 ERR-3 A0582 1 63 PER-CENT PER-CENT PER-CENT A0582 1 64 1. 3. 3. A0582 1 65 ENDCOMMON 3 0 A0582 1 66 ENDSUBENT 65 0 A0582 199999 SUBENT A0582002 20200214 A093A0582 2 1 BIB 5 7 A0582 2 2 REACTION (79-AU-197(A,N)81-TL-200,,SIG) A0582 2 3 RAD-DET (81-TL-200,DG) A0582 2 4 DECAY-DATA (81-TL-200,26.1HR,DG,367.9,0.872, A0582 2 5 DG,579.2,0.138, A0582 2 6 DG,828.3,0.108) A0582 2 7 STATUS (CURVE) Fig.1 from Jour.Phys.,G24(1998)151 A0582 2 8 HISTORY (20200214U) SD: STATUS added. A0582 2 9 ENDBIB 7 0 A0582 2 10 COMMON 1 3 A0582 2 11 EN-ERR-DIG A0582 2 12 MEV A0582 2 13 0.17 A0582 2 14 ENDCOMMON 3 0 A0582 2 15 DATA 3 7 A0582 2 16 EN DATA ERR-S A0582 2 17 MEV MB PER-CENT A0582 2 18 34.53 6.8 13. A0582 2 19 34.99 10.0 24. A0582 2 20 41.63 4.8 17. A0582 2 21 42.20 6.4 14. A0582 2 22 43.49 7.9 23. A0582 2 23 47.44 2.4 25. A0582 2 24 48.23 4.5 24. A0582 2 25 ENDDATA 9 0 A0582 2 26 ENDSUBENT 25 0 A0582 299999 SUBENT A0582003 20200214 A093A0582 3 1 BIB 5 6 A0582 3 2 REACTION (79-AU-197(A,2N)81-TL-199,,SIG) A0582 3 3 RAD-DET (81-TL-199,DG) A0582 3 4 DECAY-DATA (81-TL-199,7.42HR,DG,158.4,0.049, A0582 3 5 DG,208.1,0.122) A0582 3 6 STATUS (CURVE) Fig.2 from Jour.Phys.,G24(1998)151 A0582 3 7 HISTORY (20200214U) SD: STATUS added. A0582 3 8 ENDBIB 6 0 A0582 3 9 COMMON 1 3 A0582 3 10 EN-ERR-DIG A0582 3 11 MEV A0582 3 12 0.17 A0582 3 13 ENDCOMMON 3 0 A0582 3 14 DATA 3 6 A0582 3 15 EN DATA ERR-S A0582 3 16 MEV MB PER-CENT A0582 3 17 34.88 138. 14. A0582 3 18 38.43 73. 7. A0582 3 19 42.20 47. 15. A0582 3 20 43.50 41. 24. A0582 3 21 44.68 38. 6. A0582 3 22 48.21 33. 24. A0582 3 23 ENDDATA 8 0 A0582 3 24 ENDSUBENT 23 0 A0582 399999 NOSUBENT A0582004 20200214 A093A0582 4 1 SUBENT A0582005 20200214 A093A0582 5 1 BIB 5 7 A0582 5 2 REACTION (79-AU-197(A,4N)81-TL-197-G,M+,SIG) A0582 5 3 RAD-DET (81-TL-197-G,DG) A0582 5 4 DECAY-DATA (81-TL-197-G,2.84HR,DG,152.15,0.0756, A0582 5 5 DG,308.5,0.022, A0582 5 6 DG,432.9,0.0215) A0582 5 7 STATUS (CURVE) Fig.3 from Jour.Phys.,G24(1998)151 A0582 5 8 HISTORY (20200214U) SD: STATUS added. A0582 5 9 ENDBIB 7 0 A0582 5 10 COMMON 1 3 A0582 5 11 EN-ERR-DIG A0582 5 12 MEV A0582 5 13 0.17 A0582 5 14 ENDCOMMON 3 0 A0582 5 15 DATA 3 5 A0582 5 16 EN DATA ERR-S A0582 5 17 MEV MB PER-CENT A0582 5 18 38.85 80. 6. A0582 5 19 42.56 600. 23. A0582 5 20 43.84 900. 22. A0582 5 21 45.01 1120. 21. A0582 5 22 48.42 1500. 20. A0582 5 23 ENDDATA 7 0 A0582 5 24 ENDSUBENT 23 0 A0582 599999 SUBENT A0582006 20200214 A093A0582 6 1 BIB 5 10 A0582 6 2 REACTION (79-AU-197(A,5N)81-TL-196,,SIG) A0582 6 3 DECAY-DATA (81-TL-196-G,1.84HR,DG,610.5,0.119, A0582 6 4 DG,635.2,0.0979) A0582 6 5 COMMENT -By authors. For Tl-196 the metastable and ground-stateA0582 6 6 half-lives are comparable and isomer transition is A0582 6 7 4.5%. The gammas detected, however, are common to the A0582 6 8 decay of both Tl-196-m and Tl-196-g, thereby giving us A0582 6 9 sigma(m)+sigma(g). A0582 6 10 STATUS (CURVE) Fig.4 from Jour.Phys.,G24(1998)151 A0582 6 11 HISTORY (20200214U) SD: STATUS added. A0582 6 12 ENDBIB 10 0 A0582 6 13 COMMON 1 3 A0582 6 14 EN-ERR-DIG A0582 6 15 MEV A0582 6 16 0.13 A0582 6 17 ENDCOMMON 3 0 A0582 6 18 DATA 3 3 A0582 6 19 EN DATA ERR-S A0582 6 20 MEV MB PER-CENT A0582 6 21 47.14 44. 50. A0582 6 22 47.83 70. 40. A0582 6 23 48.12 75. 40. A0582 6 24 ENDDATA 5 0 A0582 6 25 ENDSUBENT 24 0 A0582 699999 SUBENT A0582007 20200214 A093A0582 7 1 BIB 6 10 A0582 7 2 REACTION (79-AU-197(A,X)79-AU-194-G,M+,SIG) A0582 7 3 RAD-DET (79-AU-194-G,DG) A0582 7 4 DECAY-DATA (79-AU-194-G,39.5HR,DG,293.5,0.110, A0582 7 5 DG,328.0,0.630) A0582 7 6 COMMENT - By compiler. According to ENSDF, Au-194 has two A0582 7 7 isomeric state (half-lives = 0.6 and 0.42 sec) and A0582 7 8 half-life of Au-194-g is 38.02 +/- 0.1 hours. A0582 7 9 STATUS (CURVE) Fig.6 from Jour.Phys.,G24(1998)151 A0582 7 10 HISTORY (20200214A) SD: SF5=IND/M+ -> M+ in REACTION code. A0582 7 11 STATUS added. A0582 7 12 ENDBIB 10 0 A0582 7 13 COMMON 1 3 A0582 7 14 EN-ERR-DIG A0582 7 15 MEV A0582 7 16 0.17 A0582 7 17 ENDCOMMON 3 0 A0582 7 18 DATA 3 5 A0582 7 19 EN DATA ERR-S A0582 7 20 MEV MB PER-CENT A0582 7 21 34.76 7.3E-02 18. A0582 7 22 41.92 0.24 50. A0582 7 23 43.78 0.71 40. A0582 7 24 47.52 2.8 40. A0582 7 25 48.45 6.1 25. A0582 7 26 ENDDATA 7 0 A0582 7 27 ENDSUBENT 26 0 A0582 799999 SUBENT A0582008 20200214 A093A0582 8 1 BIB 5 6 A0582 8 2 REACTION (79-AU-197(A,X)79-AU-195-G,M+,SIG) A0582 8 3 RAD-DET (79-AU-195-G,DG) A0582 8 4 DECAY-DATA (79-AU-195-G,186.1D,DG,98.86,0.109) A0582 8 5 STATUS (CURVE) Fig.5 from Jour.Phys.,G24(1998)151 A0582 8 6 HISTORY (20200214A) SD: SF5=IND/M+ -> M+ in REACTION code. A0582 8 7 STATUS added. A0582 8 8 ENDBIB 6 0 A0582 8 9 COMMON 1 3 A0582 8 10 EN-ERR-DIG A0582 8 11 MEV A0582 8 12 0.16 A0582 8 13 ENDCOMMON 3 0 A0582 8 14 DATA 3 6 A0582 8 15 EN DATA ERR-S A0582 8 16 MEV MB PER-CENT A0582 8 17 35.03 2.6 23. A0582 8 18 35.61 2.5 40. A0582 8 19 41.96 10.1 7. A0582 8 20 43.93 13.1 13. A0582 8 21 47.63 20.2 6. A0582 8 22 48.44 22.0 14. A0582 8 23 ENDDATA 8 0 A0582 8 24 ENDSUBENT 23 0 A0582 899999 NOSUBENT A0582009 20200214 A093A0582 9 1 NOSUBENT A0582010 20200214 A093A0582 10 1 NOSUBENT A0582011 20200214 A093A0582 11 1 ENDENTRY 11 0 A058299999999