ENTRY A0310 20220613 A101A031000000001 SUBENT A0310001 20220613 A101A031000100001 BIB 9 18 A031000100002 TITLE The 42Ca(alpha,gamma)46Ti and 42Ca(alpha,p)45Sc A031000100003 cross sections and mass-45 bottleneck A031000100004 AUTHOR (L.W.Mitchell,R.W.Kavanagh,M.E.Sevior,C.I.W.Tingwell, A031000100005 D.G.Sargood) A031000100006 INSTITUTE (3AULAML,1USACAL,1CANUBC) A031000100007 REFERENCE (J,NP/A,443,487,1985) A031000100008 FACILITY (VDG,3AULAML) 5U pelletron accelerator. A031000100009 SAMPLE (20-CA-42,ENR=0.9365) A Ca-42 target was prepared by A031000100010 evaporation from an intimate mixture of CaO, enriched A031000100011 to 93.65%, and zirconium, on to an etched tungsten A031000100012 backing. A031000100013 ADD-RES (COMP) Global statistical-model calculation. A031000100014 METHOD (SITA) A031000100015 HISTORY (19931216C) By CAJAD A031000100016 (19950310U) A031000100017 (20220613A) SD:Updated to new date formats, lower case.A031000100018 Corrections in all Subents. BIB updated. A031000100019 Subents 006, 007 added. A031000100020 ENDBIB 18 0 A031000100021 NOCOMMON 0 0 A031000100022 ENDSUBENT 21 0 A031000199999 SUBENT A0310002 20220613 A101A031000200001 BIB 6 27 A031000200002 REACTION (20-CA-42(A,G)22-TI-46,,SIG) A031000200003 DETECTOR (GELI) A 125 cm3 Ge(Li) detector mounted 2.3 cm from A031000200004 the target in the 55. degr. direction. A031000200005 ANALYSIS The sum of thirty gamma-ray spectra collected between A031000200006 E(alpha) =3.82 MeV and 5.92 MeV revealed only one A031000200007 strong ground-state transition in Ti-46, namely the A031000200008 889 keV 1-0 transition. The sum of all other A031000200009 ground-state yields was estimated to be less than 2% A031000200010 of the 889 keV yield. However, in many individual A031000200011 spectra gamma-rays from resonance states direct to A031000200012 the ground states were observed. The strength of these A031000200013 R-0 transitions varied greatly from energy to energy A031000200014 and the total gamma-ray yield at each energy was A031000200015 obtained from the sum of the 1-0 and R-0 yields. A031000200016 ERR-ANALYS (DATA-ERR) Statistical uncertainties in the A031000200017 extraction of the yields, and include the A031000200018 contribution from subtraction of contaminant yield A031000200019 arising from 19F(alpha,n3g)22Na. A031000200020 (ERR-SYS) Scale error, mainly from: A031000200021 (ERR-1) The error in the target thickness; A031000200022 (ERR-2) The error in gamma-ray detection efficiency; A031000200023 (ERR-3) The error introduced by obtaining the total A031000200024 angle-integrated cross section from the measured A031000200025 yield at 55.degr. A031000200026 STATUS (CURVE) Fig. 2 from Nucl.Phys.,A443(1985)487 A031000200027 HISTORY (20220613A) SD: SF9=EXP deleted from REACTION code. A031000200028 EN-ERR -> EN-ERR-DIG; ERR-T -> DATA-ERR. A031000200029 ENDBIB 27 0 A031000200030 COMMON 5 3 A031000200031 EN-ERR-DIG ERR-SYS ERR-1 ERR-2 ERR-3 A031000200032 MEV PER-CENT PER-CENT PER-CENT PER-CENT A031000200033 0.018 15. 8. 10. 5. A031000200034 ENDCOMMON 3 0 A031000200035 DATA 3 30 A031000200036 EN-CM DATA DATA-ERR A031000200037 MEV MB PER-CENT A031000200038 3.085 0.14E-02 29. A031000200039 3.159 0.38E-02 24. A031000200040 3.225 0.58E-02 19. A031000200041 3.309 0.115E-01 19. A031000200042 3.380 0.116E-01 19. A031000200043 3.442 0.124E-01 23. A031000200044 3.519 0.173E-01 12. A031000200045 3.597 0.191E-01 15. A031000200046 3.674 0.26E-01 12. A031000200047 3.753 0.235E-01 11. A031000200048 3.830 0.383E-01 19. A031000200049 3.908 0.42E-01 7. A031000200050 3.961 0.31E-01 16. A031000200051 4.063 0.57E-01 7. A031000200052 4.141 0.68E-01 7. A031000200053 4.194 0.64E-01 8. A031000200054 4.297 0.78E-01 8. A031000200055 4.351 0.59E-01 12. A031000200056 4.427 0.96E-01 11. A031000200057 4.506 0.79E-01 11. A031000200058 4.560 0.58E-01 16. A031000200059 4.638 0.7E-01 9. A031000200060 4.689 0.89E-01 7. A031000200061 4.793 0.98E-01 7. A031000200062 4.845 0.109 12. A031000200063 4.899 0.74E-01 22. A031000200064 4.965 0.110 12. A031000200065 5.002 0.121 12. A031000200066 5.080 0.122 11. A031000200067 5.132 0.135 19. A031000200068 ENDDATA 32 0 A031000200069 ENDSUBENT 68 0 A031000299999 SUBENT A0310003 20220613 A101A031000300001 BIB 7 13 A031000300002 REACTION (20-CA-42(A,P)21-SC-45,PAR,SIG) A031000300003 PART-DET (G) A031000300004 DETECTOR (GELI) A 125 cm3 Ge(Li) detector mounted 2.3 cm from A031000300005 the target in the 55. degr. direction. A031000300006 ERR-ANALYS (ERR-SYS) The uncertainty in the cross-section scale A031000300007 (ERR-S) Statistical uncertainty A031000300008 COMMENT /By compiler/ The author have measured gamma-ray yieldA031000300009 after proton emission by compound nucleus. Transition A031000300010 to ground state of Sc-45 is not observed. A031000300011 STATUS (CURVE) Fig. 3 from Nucl.Phys.,A443(1985)487 A031000300012 HISTORY (20220613A) SD: SF7=G and SF9=EXP deleted from REACTIONA031000300013 code. EN-ERR->EN-ERR-DIG; ERR-T->ERR-S; A031000300014 DATA-ERR->ERR-DIG. A031000300015 ENDBIB 13 0 A031000300016 COMMON 4 3 A031000300017 E-EXC-MIN EN-ERR-DIG ERR-SYS ERR-DIG A031000300018 KEV MEV PER-CENT PER-CENT A031000300019 376.5 0.015 16. 11. A031000300020 ENDCOMMON 3 0 A031000300021 DATA 3 28 A031000300022 EN-CM DATA ERR-S A031000300023 MEV MB PER-CENT A031000300024 3.671 0.19E-02 50. A031000300025 3.733 0.21E-02 60. A031000300026 3.817 0.67E-02 12. A031000300027 3.879 0.124E-01 12. A031000300028 3.963 0.34E-01 12. A031000300029 4.046 0.42E-01 12. A031000300030 4.109 0.79E-01 A031000300031 4.191 0.107 A031000300032 4.254 0.198 A031000300033 4.329 0.27 A031000300034 4.4 0.68 A031000300035 4.482 0.68 A031000300036 4.544 0.67 A031000300037 4.606 0.79 A031000300038 4.669 1.7 A031000300039 4.73 1.24 A031000300040 4.772 1.69 A031000300041 4.834 1.68 A031000300042 4.875 1.68 A031000300043 4.937 1.67 A031000300044 5.02 2.7 A031000300045 5.061 3.1 A031000300046 5.102 3.1 A031000300047 5.164 3.3 A031000300048 5.22 3.1 A031000300049 5.267 3.6 A031000300050 5.323 4.2 A031000300051 5.371 5.8 A031000300052 ENDDATA 30 0 A031000300053 ENDSUBENT 52 0 A031000399999 SUBENT A0310004 20220613 A101A031000400001 BIB 7 16 A031000400002 REACTION (20-CA-42(A,P)21-SC-45,PAR,SIG) A031000400003 DETECTOR (SIBAR) A 100 mm2 silicon surface-barrier detector A031000400004 was mounted 10.8 cm from the target in the 145. degr. A031000400005 direction. Angular distributions of protons were A031000400006 therefore measured with a 5-detector array (see A031000400007 REL-REF). A031000400008 COMMENT The p0 and p1 proton groups differ in energy by only A031000400009 12 keV and were therefore not resolved in the present A031000400010 measurement. A031000400011 REL-REF (I,,R.L.Mitchell,T,MITCHELL,1984) L.W. Mitchell,Ph.D. A031000400012 thesis, University of Melbourne (1984) A031000400013 ERR-ANALYS (ERR-S) Statistical uncertainty A031000400014 STATUS (CURVE) Fig. 5 from Nucl.Phys.,A443(1985)487 A031000400015 HISTORY (20220613A) SD: SF9=EXP deleted from REACTION code. A031000400016 EN-ERR->EN-ERR-DIG; ERR-T->ERR-S; E-EXC-MAX deleted; A031000400017 E-LVL added. A031000400018 ENDBIB 16 0 A031000400019 COMMON 3 3 A031000400020 E-LVL E-LVL EN-ERR-DIG A031000400021 KEV KEV MEV A031000400022 0. 12. 0.011 A031000400023 ENDCOMMON 3 0 A031000400024 DATA 3 19 A031000400025 EN-CM DATA ERR-S A031000400026 MEV MB MB A031000400027 4.312 0.57 0.21 A031000400028 4.387 0.89 0.23 A031000400029 4.464 1.28 0.19 A031000400030 4.539 1.17 0.19 A031000400031 4.6 1.11 0.13 A031000400032 4.647 1.86 0.23 A031000400033 4.717 1.97 0.13 A031000400034 4.769 2.18 0.13 A031000400035 4.83 2.07 0.23 A031000400036 4.884 2.18 0.23 A031000400037 4.939 3.36 0.13 A031000400038 4.999 3.14 0.13 A031000400039 5.06 3.36 0.13 A031000400040 5.107 3.68 0.13 A031000400041 5.169 4.5 0.13 A031000400042 5.231 4.75 0.13 A031000400043 5.285 4.11 0.13 A031000400044 5.334 3.68 0.13 A031000400045 5.397 4.54 0.13 A031000400046 ENDDATA 21 0 A031000400047 ENDSUBENT 46 0 A031000499999 SUBENT A0310005 20220613 A101A031000500001 BIB 4 5 A031000500002 REACTION (20-CA-42(A,G)22-TI-46,,SGV) A031000500003 ANALYSIS The reaction rate was derived from Hauser-Feschbach A031000500004 calculation scaled to the measured excitation functionA031000500005 STATUS (TABLE) Tbl. 1 from Nucl.Phys.,A443(1985)487 A031000500006 HISTORY (20220613C) SD A031000500007 ENDBIB 5 0 A031000500008 NOCOMMON 0 0 A031000500009 DATA 2 15 A031000500010 KT DATA A031000500011 K9 CM3/S/MOL A031000500012 1.5 5.50E-06 A031000500013 1.6 1.93E-05 A031000500014 1.8 1.69E-04 A031000500015 2.0 1.03E-03 A031000500016 2.5 3.09E-02 A031000500017 3.0 3.32E-01 A031000500018 3.5 1.91 A031000500019 4.0 7.33 A031000500020 4.5 2.13E+01 A031000500021 5.0 5.05E+01 A031000500022 6.0 1.91E+02 A031000500023 7.0 5.08E+02 A031000500024 8.0 1.09E+03 A031000500025 9.0 2.04E+03 A031000500026 10.0 3.47E+03 A031000500027 ENDDATA 17 0 A031000500028 ENDSUBENT 27 0 A031000599999 SUBENT A0310006 20220613 A101A031000600001 BIB 4 5 A031000600002 REACTION (20-CA-42(A,P)21-SC-45,,SGV) A031000600003 ANALYSIS The reaction rate was derived from Hauser-Feschbach A031000600004 calculation scaled to the measured excitation functionA031000600005 STATUS (TABLE) Tbl. 2 from Nucl.Phys.,A443(1985)487 A031000600006 HISTORY (20220613C) SD A031000600007 ENDBIB 5 0 A031000600008 NOCOMMON 0 0 A031000600009 DATA 2 18 A031000600010 KT DATA A031000600011 K9 CM3/S/MOL A031000600012 1.0 5.98E-13 A031000600013 1.2 4.19E-10 A031000600014 1.4 5.28E-08 A031000600015 1.5 3.80E-07 A031000600016 1.6 2.19E-06 A031000600017 1.8 4.31E-05 A031000600018 2.0 4.94E-04 A031000600019 2.5 4.57E-02 A031000600020 3.0 1.05 A031000600021 3.5 1.05E+01 A031000600022 4.0 6.23E+01 A031000600023 4.5 2.58E+02 A031000600024 5.0 8.32E+02 A031000600025 6.0 5.18E+03 A031000600026 7.0 2.05E+04 A031000600027 8.0 6.08E+04 A031000600028 9.0 1.46E+05 A031000600029 10.0 3.04E+05 A031000600030 ENDDATA 20 0 A031000600031 ENDSUBENT 30 0 A031000699999 ENDENTRY 6 0 A031099999999