11 B + 12 C, Ecm =41.7 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 7.362 0.6754 9.937 0.06711 0.06711 8.365 0.5926 9.936 0.05888 0.05888 9.369 0.4002 9.938 0.03977 0.03977 10.37 0.2633 11.034 0.02905 0.02905 11.21 0.231 12.265 0.02833 0.02833 12.21 0.2774 9.939 0.02757 0.02757 12.88 0.3604 12.265 0.0442 0.0442 13.72 0.3798 7.549 0.02867 0.02867 14.89 0.4108 9.937 0.04082 0.04082 16.06 0.3162 12.265 0.03878 0.03878 17.06 0.1082 9.936 0.01075 0.01075 18.06 0.05337 12.262 0.006544 0.006544 18.9 0.03421 12.263 0.004195 0.004195 20.07 0.07117 14.529 0.01034 0.01034 20.91 0.1405 2.583 0.003629 0.003629 21.91 0.2192 7.551 0.01655 0.01655 22.75 0.2434 7.552 0.01838 0.01838 23.75 0.2136 9.935 0.02122 0.02122 24.59 0.1602 7.547 0.01209 0.01209 25.59 0.09006 7.55 0.006799 0.006799 26.43 0.03001 9.937 0.002982 0.002982 27.76 0.0152 5.099 0.0007749 0.0007749 28.6 0.03081 7.55 0.002326 0.002326 29.6 0.07117 7.55 0.005373 0.005373 30.44 0.117 7.55 0.008833 0.008833 31.27 0.1334 12.257 0.01635 0.01635 32.61 0.111 9.937 0.01103 0.01103 33.45 0.07117 9.937 0.007072 0.007072 34.28 0.04329 11.033 0.004776 0.004776 35.29 0.02633 12.264 0.003229 0.003229 36.29 0.02192 14.531 0.003185 0.003185 37.13 0.03798 9.937 0.003774 0.003774 37.96 0.05623 7.55 0.004245 0.004245 39.13 0.07902 9.937 0.007852 0.007852 39.97 0.08111 12.264 0.009947 0.009947 40.81 0.07499 5.373 0.004029 0.004029 41.98 0.04444 7.55 0.003355 0.003355 42.98 0.04108 8.167 0.003355 0.003355 43.82 0.03001 9.937 0.002982 0.002982 44.82 0.01688 5.098 0.0008604 0.0008604 45.82 0.01825 9.94 0.001814 0.001814 46.66 0.02703 7.551 0.002041 0.002041 47.66 0.03246 12.265 0.003981 0.003981 48.67 0.03604 9.939 0.003582 0.003582 49.5 0.04108 12.264 0.005038 0.005038 50.5 0.04002 9.938 0.003977 0.003977 51.34 0.037 12.263 0.004537 0.004537 52.34 0.02499 12.261 0.003064 0.003064 124.6 0.1874 14.526 0.02722 0.02722 125.6 0.231 12.265 0.02833 0.02833 126.8 0.152 14.527 0.02208 0.02208 128.6 0.114 14.527 0.01656 0.01656 129.8 0.2371 12.265 0.02908 0.02908 130.6 0.3001 9.937 0.02982 0.02982 131.6 0.37 12.263 0.04537 0.04537 132.4 0.4329 12.262 0.05308 0.05308 133.6 0.4561 12.265 0.05594 0.05594 134.6 0.5623 14.53 0.0817 0.0817 135.6 0.5623 12.264 0.06896 0.06896 136.8 0.6754 12.263 0.08282 0.08282 138 0.6754 9.937 0.06711 0.06711 138.5 0.8111 12.264 0.09947 0.09947 139.6 1.14 9.939 0.1133 0.1133 140.3 0.949 12.266 0.1164 0.1164 141.8 0.8111 9.938 0.0806 0.0806 142.6 1.233 12.263 0.1512 0.1512 143.5 1.732 12.264 0.2124 0.2124 144.6 1.825 14.532 0.2652 0.2652 145.7 1.825 9.94 0.1814 0.1814 146.5 1.923 9.938 0.1911 0.1911 148 1.825 9.94 0.1814 0.1814 149.5 1.778 12.267 0.2181 0.2181 150.7 1.825 9.94 0.1814 0.1814 151.3 2.633 9.936 0.2616 0.2616 152.7 3.511 12.265 0.4306 0.4306 153.7 4.682 12.264 0.5742 0.5742 155.2 5.065 12.263 0.6211 0.6211 156.5 4.682 12.264 0.5742 0.5742 157.5 4.329 9.938 0.4302 0.4302 158.5 3.332 12.263 0.4086 0.4086 159.5 4.108 9.937 0.4082 0.4082 160.5 5.926 12.263 0.7267 0.7267 161.4 8.111 12.264 0.9947 0.9947 162.4 11.4 12.264 1.398 1.398 163.5 12.99 7.55 0.9807 0.9807 164.7 11.7 9.941 1.163 1.163 165.6 11.1 9.937 1.103 1.103 166.4 9.245 9.938 0.9187 0.9187 167.4 12.01 9.934 1.193 1.193 168.4 18.74 12.263 2.298 2.298 169.4 27.74 12.264 3.402 3.402 170.6 34.21 12.263 4.195 4.195 171.6 40.02 9.938 3.977 3.977