ACE Cosmic Ray Isotpe Spectrometer Cosmic Ray Isotopic Compositon Measured at Solar Minimum (Dec 1997 through Sept 1999) PRELIMINARY -------------------------------------------------- Li (Z= 3) 49 - 127 MeV/nuc 6Li (Z= 3, M= 6) 53.1 +/- 2.2 7Li (Z= 3, M= 7) 46.9 +/- 2.2 -------------------------------------------------- Be (Z= 4) 60 - 157 MeV/nuc 7Be (Z= 4, M= 7) 59.9 +/- 2.9 9Be (Z= 4, M= 9) 36.2 +/- 3.1 10Be (Z= 4, M=10) 3.8 +/- 0.8 -------------------------------------------------- B (Z= 5) 65 - 172 MeV/nuc 10B (Z= 5, M=10) 30.0 +/- 0.6 11B (Z= 5, M=11) 70.0 +/- 0.6 -------------------------------------------------- C (Z= 6) 75 - 199 MeV/nuc 12C (Z= 6, M=12) 94.09 +/- 0.18 13C (Z= 6, M=13) 5.91 +/- 0.18 -------------------------------------------------- N (Z= 7) 81 - 214 MeV/nuc 14N (Z= 7, M=14) 48.9 +/- 0.5 15N (Z= 7, M=15) 51.1 +/- 0.5 -------------------------------------------------- O (Z= 8) 88 - 236 MeV/nuc 16O (Z= 8, M=16) 97.19 +/- 0.12 17O (Z= 8, M=17) 1.25 +/- 0.08 18O (Z= 8, M=18) 1.56 +/- 0.05 -------------------------------------------------- F (Z= 9) 92 - 245 MeV/nuc 19F (Z= 9, M=19) 100. +/- 0. -------------------------------------------------- Ne (Z=10) 98 - 264 MeV/nuc 20Ne (Z=10, M=20) 55.6 +/- 0.8 21Ne (Z=10, M=21) 12.00 +/- 0.44 22Ne (Z=10, M=22) 32.4 +/- 0.6 -------------------------------------------------- Na (Z=11) 103 - 278 MeV/nuc 23Na (Z=11, M=23) 100. +/- 0. -------------------------------------------------- Mg (Z=12) 110 - 298 MeV/nuc 24Mg (Z=12, M=24) 69.6 +/- 1.1 25Mg (Z=12, M=25) 14.6 +/- 0.7 26Mg (Z=12, M=26) 15.8 +/- 0.5 -------------------------------------------------- Al (Z=13) 114 - 310 MeV/nuc 26Al (Z=13, M=26) 4.22 +/- 0.36 27Al (Z=13, M=27) 95.78 +/- 0.36 -------------------------------------------------- Si (Z=14) 121 - 330 MeV/nuc 28Si (Z=14, M=28) 86.92 +/- 0.36 29Si (Z=14, M=29) 7.32 +/- 0.27 30Si (Z=14, M=30) 5.76 +/- 0.21 -------------------------------------------------- P (Z=15) 124 - 339 MeV/nuc 31P (Z=15, M=31) 100. +/- 0. -------------------------------------------------- S (Z=16) 130 - 356 MeV/nuc 32S (Z=16, M=32) 69.3 +/- 2.4 33S (Z=16, M=33) 13.3 +/- 1.0 34S (Z=16, M=34) 16.7 +/- 1.9 36S (Z=16, M=36) 0.79 +/- 0.29 -------------------------------------------------- Cl (Z=17) 132 - 363 MeV/nuc 35Cl (Z=17, M=35) 65.9 +/- 4.2 36Cl (Z=17, M=36) 7.0 +/- 2.3 37Cl (Z=17, M=37) 27.2 +/- 3.3 -------------------------------------------------- Ar (Z=18) 138 - 380 MeV/nuc 36Ar (Z=18, M=36) 38.0 +/- 0.9 37Ar (Z=18, M=37) 20.8 +/- 2.4 38Ar (Z=18, M=38) 35.9 +/- 2.7 40Ar (Z=18, M=40) 5.2 +/- 1.0 -------------------------------------------------- K (Z=19) 141 - 389 MeV/nuc 39K (Z=19, M=39) 46.2 +/- 3.0 40K (Z=19, M=40) 30.1 +/- 2.0 41K (Z=19, M=41) 23.7 +/- 2.1 -------------------------------------------------- Ca (Z=20) 145 - 402 MeV/nuc 40Ca (Z=20, M=40) 34.2 +/- 1.8 41Ca (Z=20, M=41) 8.5 +/- 0.6 42Ca (Z=20, M=42) 17.9 +/- 0.9 43Ca (Z=20, M=43) 19.2 +/- 1.3 44Ca (Z=20, M=44) 19.7 +/- 0.6 46Ca (Z=20, M=46) 0.259 +/- 0.036 48Ca (Z=20, M=48) 0.085 +/- 0.021 -------------------------------------------------- Sc (Z=21) 147 - 408 MeV/nuc 45Sc (Z=21, M=45) 100. +/- 0. -------------------------------------------------- Ti (Z=22) 151 - 420 MeV/nuc 44Ti (Z=22, M=44) 1.00 +/- 0.21 46Ti (Z=22, M=46) 30.4 +/- 2.1 47Ti (Z=22, M=47) 30.9 +/- 1.2 48Ti (Z=22, M=48) 30.0 +/- 1.8 49Ti (Z=22, M=49) 6.7 +/- 1.4 50Ti (Z=22, M=50) 1.00 +/- 0.23 -------------------------------------------------- V (Z=23) 154 - 430 MeV/nuc 49V (Z=23, M=49) 52.9 +/- 3.3 50V (Z=23, M=50) 28.2 +/- 2.2 51V (Z=23, M=51) 18.9 +/- 3.9 -------------------------------------------------- Cr (Z=24) 158 - 443 MeV/nuc 50Cr (Z=24, M=50) 18.7 +/- 1.9 51Cr (Z=24, M=51) 27.9 +/- 2.8 52Cr (Z=24, M=52) 42.8 +/- 2.2 53Cr (Z=24, M=53) 7.0 +/- 0.8 54Cr (Z=24, M=54) 3.7 +/- 0.5 -------------------------------------------------- Mn (Z=25) 162 - 454 MeV/nuc 53Mn (Z=25, M=53) 50.0 +/- 0.9 54Mn (Z=25, M=54) 11.2 +/- 1.0 55Mn (Z=25, M=55) 38.8 +/- 1.6 -------------------------------------------------- Fe (Z=26) 166 - 466 MeV/nuc 54Fe (Z=26, M=54) 8.53 +/- 0.21 55Fe (Z=26, M=55) 4.72 +/- 0.34 56Fe (Z=26, M=56) 83.38 +/- 0.46 57Fe (Z=26, M=57) 2.89 +/- 0.34 58Fe (Z=26, M=58) 0.48 +/- 0.13 -------------------------------------------------- Co (Z=27) 169 - 477 MeV/nuc 57Co (Z=27, M=57) 49. +/- 7. 59Co (Z=27, M=59) 51. +/- 7. -------------------------------------------------- Ni (Z=28) 175 - 496 MeV/nuc 58Ni (Z=28, M=58) 63.7 +/- 2.6 59Ni (Z=28, M=59) < 3.4 60Ni (Z=28, M=60) 27.9 +/- 2.5 61Ni (Z=28, M=61) 2.1 +/- 0.7 62Ni (Z=28, M=62) 3.4 +/- 0.8 64Ni (Z=28, M=64) 0.87 +/- 0.13 -------------------------------------------------- Cu (Z=29) 174 - 492 MeV/nuc 63Cu (Z=29, M=63) 66. +/- 15. 65Cu (Z=29, M=65) 34. +/- 15. -------------------------------------------------- Zn (Z=30) 179 - 509 MeV/nuc 64Zn (Z=30, M=64) 52. +/- 14. 66Zn (Z=30, M=66) 30. +/- 6. 68Zn (Z=30, M=68) 17. +/- 12. --------------------------------------------------