11 B + 12 C, Ecm =31.3 MeV S.Albergo, S.Costa, R.Potenza, J.Romanski, C.Tuve, L.Jarczyk, B.Kamys, A.Magiera, A.Strzalkowaki, R.Barna, V.DAmico, D.De Pasquale, G. Mannino,Physical Review, C43 (1991) 2704-2710 (access to the source may be restricted by owner!)
CommentsBeam quality: The beam intensity was usually adjusted to 30-50 nA. Target: Target was about 100 mcg/cm2 thick. Data obtained: author graph (digitized with GSYS 2.4 ) The measurement were performed at the Laboratorio Nazionale del Sud in Catania using SMP Tandem Van de Graaff accelerator. The estimated error of absolute normalization is 7%. For the very forward angular region beam was reduced to the value 1 nA on 20 mcg/cm2 target.
Θcm (deg) σ/σR (ratio) error (%) +δσ -δσ 7.906 0.8063 9.681 0.07805 0.07805 8.909 0.7098 7.939 0.05635 0.05635 9.744 0.5938 9.686 0.05751 0.05751 10.75 0.4602 9.675 0.04452 0.04452 11.75 0.3658 9.689 0.03544 0.03544 12.58 0.3061 11.964 0.03662 0.03662 13.59 0.3388 9.691 0.03283 0.03283 14.09 0.3848 7.363 0.02833 0.02833 15.43 0.437 13.577 0.05933 0.05933 16.43 0.3301 7.356 0.02428 0.02428 17.26 0.2906 4.97 0.01444 0.01444 18.43 0.2252 11.972 0.02696 0.02696 19.27 0.146 7.37 0.01076 0.01076 20.43 0.08773 7.357 0.006454 0.006454 21.27 0.06462 9.697 0.006266 0.006266 22.44 0.08334 9.698 0.008082 0.008082 23.28 0.116 11.966 0.01388 0.01388 24.12 0.1657 9.705 0.01608 0.01608 24.95 0.1981 9.688 0.01919 0.01919 26.29 0.198 10.728 0.02124 0.02124 26.96 0.1834 7.367 0.01351 0.01351 27.96 0.1284 7.367 0.009459 0.009459 29.13 0.08116 11.961 0.009707 0.009707 29.96 0.03243 13.593 0.004408 0.004408 30.96 0.02645 11.963 0.003164 0.003164 31.8 0.04183 9.687 0.004052 0.004052 32.98 0.1129 7.368 0.008318 0.008318 33.65 0.1613 11.96 0.01929 0.01929 34.65 0.1832 11.966 0.02192 0.02192 35.82 0.1741 9.685 0.01686 0.01686 36.66 0.1612 9.697 0.01563 0.01563 37.66 0.1188 9.672 0.01149 0.01149 38.66 0.07507 7.358 0.005523 0.005523 39.49 0.03773 7.366 0.002779 0.002779 40.49 0.01945 7.363 0.001432 0.001432 41.49 0.02154 7.364 0.001586 0.001586 42.5 0.04283 7.937 0.003399 0.003399 43.34 0.06276 9.695 0.006084 0.006084 44.34 0.07892 9.685 0.007643 0.007643 45.18 0.09194 13.585 0.01249 0.01249 46.18 0.08961 7.36 0.006595 0.006595 47.18 0.06272 2.513 0.001576 0.001576 48.19 0.05663 11.962 0.006774 0.006774 49.02 0.04738 7.35 0.003482 0.003482 49.85 0.02506 4.961 0.001243 0.001243 51.02 0.02263 9.678 0.00219 0.00219 52.03 0.01893 11.955 0.002263 0.002263 124.1 0.2389 2.518 0.006014 0.006014 125.1 0.3683 9.683 0.03566 0.03566 126.1 0.3974 7.361 0.02925 0.02925 127.1 0.4289 11.961 0.0513 0.0513 128.1 0.6126 2.572 0.01575 0.01575 129.1 0.5532 11.964 0.06618 0.06618 130 0.732 5.227 0.03826 0.03826 131 0.5819 14.176 0.08249 0.08249 132 0.628 9.688 0.06084 0.06084 132.8 0.4993 11.939 0.05961 0.05961 134.2 0.512 16.512 0.08454 0.08454 135 0.4284 11.94 0.05115 0.05115 136 0.6276 7.36 0.04619 0.04619 137.2 0.8304 2.519 0.02091 0.02091 138 0.9674 9.692 0.09376 0.09376 139 1.417 9.697 0.1374 0.1374 140.2 1.61 7.361 0.1185 0.1185 141.5 1.737 13.581 0.2359 0.2359 142.9 1.65 9.691 0.1599 0.1599 143.9 1.49 11.96 0.1782 0.1782 145 0.9663 9.692 0.09365 0.09365 146.2 1.155 11.957 0.1381 0.1381 147 1.567 9.694 0.1519 0.1519 148 1.78 9.697 0.1726 0.1726 149 2.296 9.696 0.2226 0.2226 150.6 2.354 9.69 0.2281 0.2281 151.9 2.674 5.229 0.1398 0.1398 152.7 2.237 9.688 0.2167 0.2167 154.1 1.647 11.943 0.1967 0.1967 155.1 1.824 11.963 0.2182 0.2182 155.9 2.475 2.524 0.06246 0.06246 156.9 3.446 11.968 0.4124 0.4124 157.9 4.334 11.962 0.5184 0.5184 159.1 5.882 11.968 0.7039 0.7039 160.4 6.852 2.521 0.1727 0.1727 161.9 4.012 29.986 1.203 1.203 163.3 4.221 28.193 1.19 1.19 164.3 4.329 33.472 1.449 1.449 165.4 5.444 11.957 0.6509 0.6509 165.9 6.506 24.439 1.59 1.59 167 12.94 20.487 2.651 2.651 168 16.27 18.439 3 3 169 29.98 14.17 4.248 4.248 170.1 28.49 11.959 3.407 3.407