ENTRY A1235 20190707 A092A123500000001 SUBENT A1235001 20190707 A092A123500100001 BIB 10 27 A123500100002 TITLE Alpha-alpha scattering from 12.88 to 21.62 MeV A123500100003 AUTHOR (F.E.Steigert,M.B.Sampson) A123500100004 REFERENCE (J,PR,92,660,1953) A123500100005 INSTITUTE (1USAINU) A123500100006 FACILITY (CYCLO,1USAINU) A123500100007 SAMPLE Helium gas to pressures of 5 to 8 cm of mercury A123500100008 METHOD (EXTB,BCINT) A123500100009 Several control experiments were performed to check A123500100010 the apparatus used. A123500100011 DETECTOR (PLATE) Kodak NTA emulsions of 50 and 60 micron A123500100012 thickness were used as detectors. A123500100013 Each curve represents a total of more than 30000 tracksA123500100014 ERR-ANALYS (ERR-T) The absolute values are considered accurate to A123500100015 about 5% for the energies above 18 MeV and about 10% A123500100016 for those below. The error in the absolute values is A123500100017 essentially that of the integration of the beam A123500100018 current, since the gas pressures were readable A123500100019 to better than 1%. A123500100020 (ERR-1,,2.) The relative values are considered to be A123500100021 better than 2%. Primarily a function of the statistics,A123500100022 since the number of spurious tracks has been shown to A123500100023 be negligible, and the accuracy of the geometry was A123500100024 experimentally checked. A123500100025 HISTORY (19870717C) Compilation produced by Arzamas RFNC-VNIIEFA123500100026 (19990305U)CNPD: corrected 4-dig. year and lower cases.A123500100027 (20190707A) SD: Major corrections in all Subents. A123500100028 DATA-ERR2 -> ERR-1. Subents 002-005 merged. A123500100029 ENDBIB 27 0 A123500100030 NOCOMMON 0 0 A123500100031 ENDSUBENT 30 0 A123500199999 SUBENT A1235002 20190707 A092A123500200001 BIB 3 7 A123500200002 REACTION (2-HE-4(A,EL)2-HE-4,,DA) A123500200003 STATUS (CURVE) Fig.2-5 from Phys.Rev.92(1953)660 A123500200004 HISTORY (20190707A) SD: SF9=EXP deleted from REACTION code. A123500200005 Total error corrected (5. -> 10.%) ANG -> ANG-CM; A123500200006 DATA->DATA-CM; ANG-ERR->ANG-ERR-D; DATA-ERR->ERR-DIG; A123500200007 DATA-ERR2->ERR-T. Data from Subents 003-005 added. A123500200008 Data from all figures were re-digitized. A123500200009 ENDBIB 7 0 A123500200010 COMMON 2 3 A123500200011 ANG-ERR-D ERR-DIG A123500200012 ADEG PER-CENT A123500200013 0.04 0.3 A123500200014 ENDCOMMON 3 0 A123500200015 DATA 4 218 A123500200016 EN ANG-CM DATA-CM ERR-T A123500200017 MEV ADEG MB/SR PER-CENT A123500200018 12.88 26.09 74.15 10. A123500200019 12.88 28.13 72.34 10. A123500200020 12.88 29.86 70.09 10. A123500200021 12.88 31.10 68.15 10. A123500200022 12.88 32.59 64.90 10. A123500200023 12.88 42.99 31.07 10. A123500200024 12.88 43.97 26.29 10. A123500200025 12.88 44.96 21.85 10. A123500200026 12.88 46.00 17.73 10. A123500200027 12.88 46.93 14.09 10. A123500200028 12.88 48.75 8.01 10. A123500200029 12.88 51.11 3.73 10. A123500200030 12.88 58.10 3.37 10. A123500200031 12.88 60.20 5.17 10. A123500200032 12.88 62.94 9.09 10. A123500200033 12.88 71.36 31.94 10. A123500200034 12.88 73.10 36.96 10. A123500200035 12.88 74.64 42.92 10. A123500200036 12.88 75.69 43.83 10. A123500200037 12.88 77.08 48.47 10. A123500200038 12.88 78.72 52.14 10. A123500200039 12.88 80.41 56.09 10. A123500200040 12.88 84.53 63.32 10. A123500200041 12.88 86.56 67.40 10. A123500200042 12.88 87.95 68.81 10. A123500200043 12.88 88.94 69.04 10. A123500200044 12.88 89.84 69.76 10. A123500200045 14.86 31.64 349.07 10. A123500200046 14.86 32.88 327.80 10. A123500200047 14.86 33.82 306.77 10. A123500200048 14.86 42.54 169.48 10. A123500200049 14.86 43.28 156.96 10. A123500200050 14.86 44.17 145.88 10. A123500200051 14.86 45.06 131.39 10. A123500200052 14.86 46.10 119.16 10. A123500200053 14.86 48.17 90.16 10. A123500200054 14.86 50.55 67.03 10. A123500200055 14.86 57.36 19.38 10. A123500200056 14.86 58.98 13.16 10. A123500200057 14.86 61.21 9.29 10. A123500200058 14.86 64.33 7.99 10. A123500200059 14.86 70.50 13.99 10. A123500200060 14.86 72.59 19.54 10. A123500200061 14.86 74.33 24.08 10. A123500200062 14.86 74.93 25.90 10. A123500200063 14.86 75.42 27.39 10. A123500200064 14.86 76.02 28.75 10. A123500200065 14.86 77.51 32.70 10. A123500200066 14.86 79.35 37.06 10. A123500200067 14.86 85.56 48.08 10. A123500200068 14.86 87.74 49.94 10. A123500200069 14.86 89.13 50.81 10. A123500200070 14.86 90.03 50.98 10. A123500200071 16.55 32.53 297.35 10. A123500200072 16.55 33.62 278.27 10. A123500200073 16.55 42.53 132.35 10. A123500200074 16.55 42.92 123.44 10. A123500200075 16.55 43.96 110.79 10. A123500200076 16.55 44.66 100.13 10. A123500200077 16.55 45.89 86.49 10. A123500200078 16.55 47.92 62.98 10. A123500200079 16.55 50.44 43.98 10. A123500200080 16.55 57.43 36.28 10. A123500200081 16.55 58.47 38.62 10. A123500200082 16.55 59.16 40.40 10. A123500200083 16.55 61.01 48.24 10. A123500200084 16.55 62.25 54.30 10. A123500200085 16.55 64.24 65.06 10. A123500200086 16.55 70.35 102.24 10. A123500200087 16.55 72.59 116.27 10. A123500200088 16.55 74.13 125.94 10. A123500200089 16.55 74.97 131.76 10. A123500200090 16.55 75.97 137.36 10. A123500200091 16.55 77.41 145.72 10. A123500200092 16.55 79.74 151.89 10. A123500200093 16.55 87.48 192.94 10. A123500200094 16.55 88.23 199.07 10. A123500200095 16.55 89.12 195.61 10. A123500200096 16.55 89.92 198.33 10. A123500200097 18.32 27.46 441.05 5. A123500200098 18.32 28.95 404.51 5. A123500200099 18.32 30.50 365.82 5. A123500200100 18.32 31.80 336.29 5. A123500200101 18.32 32.65 314.98 5. A123500200102 18.32 33.55 286.18 5. A123500200103 18.32 42.19 130.13 5. A123500200104 18.32 42.34 114.42 5. A123500200105 18.32 43.03 117.68 5. A123500200106 18.32 43.89 100.14 5. A123500200107 18.32 44.14 95.56 5. A123500200108 18.32 44.79 89.92 5. A123500200109 18.32 46.03 77.24 5. A123500200110 18.32 47.84 58.89 5. A123500200111 18.32 50.38 46.17 5. A123500200112 18.32 53.62 41.57 5. A123500200113 18.32 58.10 47.07 5. A123500200114 18.32 59.00 47.51 5. A123500200115 18.32 59.55 50.73 5. A123500200116 18.32 60.19 53.04 5. A123500200117 18.32 61.14 56.50 5. A123500200118 18.32 62.13 59.63 5. A123500200119 18.32 65.67 72.76 5. A123500200120 18.32 67.50 84.53 5. A123500200121 18.32 68.95 91.97 5. A123500200122 18.32 69.79 97.74 5. A123500200123 18.32 72.53 109.12 5. A123500200124 18.32 85.42 155.85 5. A123500200125 18.32 87.47 159.93 5. A123500200126 18.32 88.86 161.82 5. A123500200127 18.32 89.91 162.21 5. A123500200128 18.82 48.63 70.68 5. A123500200129 18.82 50.23 65.28 5. A123500200130 18.82 51.42 62.45 5. A123500200131 18.82 53.12 59.74 5. A123500200132 18.82 54.91 58.77 5. A123500200133 18.82 57.35 61.02 5. A123500200134 18.82 70.79 100.29 5. A123500200135 18.82 77.06 122.70 5. A123500200136 18.82 79.90 131.64 5. A123500200137 18.82 81.89 137.96 5. A123500200138 18.82 83.93 142.24 5. A123500200139 19.47 29.05 439.92 5. A123500200140 19.47 30.36 392.63 5. A123500200141 19.47 31.56 351.23 5. A123500200142 19.47 33.41 296.49 5. A123500200143 19.47 42.58 127.38 5. A123500200144 19.47 43.58 122.46 5. A123500200145 19.47 44.63 116.91 5. A123500200146 19.47 45.93 110.07 5. A123500200147 19.47 47.73 101.01 5. A123500200148 19.47 50.58 95.11 5. A123500200149 19.47 53.67 91.67 5. A123500200150 19.47 56.97 89.17 5. A123500200151 19.47 57.87 88.56 5. A123500200152 19.47 58.92 87.75 5. A123500200153 19.47 60.32 87.15 5. A123500200154 19.47 65.61 89.44 5. A123500200155 19.47 67.55 92.19 5. A123500200156 19.47 68.90 93.50 5. A123500200157 19.47 70.00 95.70 5. A123500200158 19.47 71.49 99.11 5. A123500200159 19.47 79.13 114.00 5. A123500200160 19.47 85.46 130.21 5. A123500200161 19.47 87.56 133.60 5. A123500200162 19.47 88.91 134.86 5. A123500200163 19.47 89.91 135.82 5. A123500200164 19.62 40.92 166.36 5. A123500200165 19.62 41.82 154.82 5. A123500200166 19.62 42.72 146.43 5. A123500200167 19.62 43.47 139.79 5. A123500200168 19.62 44.97 128.89 5. A123500200169 19.62 46.52 119.39 5. A123500200170 19.62 49.52 106.33 5. A123500200171 19.62 57.47 94.51 5. A123500200172 19.62 58.52 93.86 5. A123500200173 19.62 59.96 93.65 5. A123500200174 19.62 61.06 93.44 5. A123500200175 19.62 62.31 93.67 5. A123500200176 19.62 68.80 96.36 5. A123500200177 19.62 70.10 97.28 5. A123500200178 19.62 71.05 97.96 5. A123500200179 19.62 72.79 99.58 5. A123500200180 19.62 87.01 120.06 5. A123500200181 19.62 88.41 121.75 5. A123500200182 19.62 89.91 123.19 5. A123500200183 20.38 40.83 222.76 5. A123500200184 20.38 44.62 181.57 5. A123500200185 20.38 46.14 165.13 5. A123500200186 20.38 48.21 148.02 5. A123500200187 20.38 50.72 129.87 5. A123500200188 20.38 57.84 99.36 5. A123500200189 20.38 59.58 95.13 5. A123500200190 20.38 61.52 91.50 5. A123500200191 20.38 75.32 76.53 5. A123500200192 20.38 77.82 75.68 5. A123500200193 20.38 79.72 75.75 5. A123500200194 20.95 42.92 182.22 5. A123500200195 20.95 44.65 169.62 5. A123500200196 20.95 45.88 158.70 5. A123500200197 20.95 46.81 150.27 5. A123500200198 20.95 48.97 132.18 5. A123500200199 20.95 51.44 117.90 5. A123500200200 20.95 54.41 106.86 5. A123500200201 20.95 56.56 105.95 5. A123500200202 20.95 58.01 107.09 5. A123500200203 20.95 58.98 110.33 5. A123500200204 20.95 59.68 112.10 5. A123500200205 20.95 60.34 113.91 5. A123500200206 20.95 61.09 115.19 5. A123500200207 20.95 61.74 114.33 5. A123500200208 20.95 63.33 109.48 5. A123500200209 20.95 70.80 71.72 5. A123500200210 20.95 72.81 62.36 5. A123500200211 20.95 73.93 57.94 5. A123500200212 20.95 75.55 52.81 5. A123500200213 20.95 77.88 48.01 5. A123500200214 20.95 79.22 46.85 5. A123500200215 20.95 84.89 57.77 5. A123500200216 20.95 86.42 62.35 5. A123500200217 20.95 87.94 66.20 5. A123500200218 20.95 88.75 68.21 5. A123500200219 20.95 89.66 69.95 5. A123500200220 21.62 33.82 257.71 5. A123500200221 21.62 34.79 230.64 5. A123500200222 21.62 36.10 204.44 5. A123500200223 21.62 39.72 154.97 5. A123500200224 21.62 41.00 147.73 5. A123500200225 21.62 42.61 151.07 5. A123500200226 21.62 44.02 155.96 5. A123500200227 21.62 46.14 165.13 5. A123500200228 21.62 48.16 170.80 5. A123500200229 21.62 56.76 168.97 5. A123500200230 21.62 58.88 152.88 5. A123500200231 21.62 60.80 139.98 5. A123500200232 21.62 69.94 70.93 5. A123500200233 21.62 72.33 57.87 5. A123500200234 21.62 74.67 48.11 5. A123500200235 21.62 77.62 40.65 5. A123500200236 ENDDATA 220 0 A123500200237 ENDSUBENT 236 0 A123500299999 NOSUBENT A1235003 20190707 A092A123500300001 NOSUBENT A1235004 20190707 A092A123500400001 NOSUBENT A1235005 20190707 A092A123500500001 ENDENTRY 5 0 A123599999999