ENTRY C2404 20190813 C187C240400000001 SUBENT C2404001 20190813 C187C240400100001 BIB 9 21 C240400100002 TITLE Experimental Study of the O17(p,alpha)N14 Reaction C240400100003 and a Calculation of the Rate of this Reaction in the C240400100004 CNO Cycle in Stars C240400100005 AUTHOR (R.E.Brown) C240400100006 REFERENCE (J,PR,125,347,1962) C240400100007 #doi:10.1103/PhysRev.125.347 C240400100008 INSTITUTE (1USACAL) C240400100009 FACILITY (VDGT,1USACAL) The Kellogg Laboratory 2-Mv C240400100010 electrostatic generator. C240400100011 DETECTOR (CSICR) A CsI(Tl) crystal and DuMont 6291 C240400100012 photomultiplier were used to detect those particles C240400100013 which pass through the spectrometer. C240400100014 METHOD The magnetic spectrometer was set to count the doubly C240400100015 charged alpha particles emerging from the target. C240400100016 CORRECTION Thus the number of doubly charged alpha particles C240400100017 which emerge from the target is less than the actual C240400100018 number produced by the reaction in the target. C240400100019 Therefore, the number of alpha particles which are C240400100020 counted must be corrected for this effect in order to C240400100021 obtain the true yield. C240400100022 HISTORY (20190813C) BP C240400100023 ENDBIB 21 0 C240400100024 NOCOMMON 0 0 C240400100025 ENDSUBENT 24 0 C240400199999 SUBENT C2404002 20190813 C187C240400200001 BIB 4 14 C240400200002 REACTION (8-O-17(P,A)7-N-14,,DA) C240400200003 SAMPLE One was a 1/16-in. thick stainless C240400200004 steel disk which had been bombarded in a mass C240400200005 separator with 017 in the form of the ion N14017. C240400200006 This resulted in a thin, nonuniform target of 017. C240400200007 (8-O-17,ENR=0.0397) C240400200008 (8-O-18,ENR=0.437) C240400200009 (8-O-16,ENR=0.5233) C240400200010 ERR-ANALYS (DATA-ERR) The error (standard deviation) in the C240400200011 scale of the absolute cross section in the present C240400200012 experiment is 10%. The bulk of this error is due to C240400200013 the uncertainty in the stopping cross section for the C240400200014 alpha particles. C240400200015 STATUS (CURVE) Fig. 3, page 350. C240400200016 ENDBIB 14 0 C240400200017 COMMON 4 3 C240400200018 DATA-ERR ANG EN-ERR EN-RSL C240400200019 PER-CENT ADEG PER-CENT KEV C240400200020 10.0 150.0 0.3 5.0 C240400200021 ENDCOMMON 3 0 C240400200022 DATA 2 10 C240400200023 EN DATA C240400200024 KEV MB/SR C240400200025 657.920 0.072 C240400200026 697.382 0.048 C240400200027 785.401 0.156 C240400200028 941.910 0.145 C240400200029 989.385 0.143 C240400200030 1043.394 0.456 C240400200031 1122.613 1.208 C240400200032 1184.151 1.993 C240400200033 1215.850 3.660 C240400200034 1446.688 1.514 C240400200035 ENDDATA 12 0 C240400200036 ENDSUBENT 35 0 C240400299999 SUBENT C2404003 20190813 C187C240400300001 BIB 4 14 C240400300002 REACTION (8-O-17(P,A)7-N-14,,DA) C240400300003 SAMPLE The other type of target used was a thick, uniform, C240400300004 nickel oxide target. This type of target was prepared C240400300005 by oxidizing clean, polished, 15-mil thick nickel C240400300006 blanks in an induction heater. C240400300007 (8-O-17,ENR=0.0397) C240400300008 (8-O-18,ENR=0.437) C240400300009 (8-O-16,ENR=0.5233) C240400300010 ERR-ANALYS (DATA-ERR) The error (standard deviation) in the C240400300011 scale of the absolute cross section in the present C240400300012 experiment is 10%. The bulk of this error is due to C240400300013 the uncertainty in the stopping cross section for the C240400300014 alpha particles. C240400300015 STATUS (CURVE) Fig. 3, page 350. C240400300016 ENDBIB 14 0 C240400300017 COMMON 4 3 C240400300018 DATA-ERR ANG EN-ERR EN-RSL C240400300019 PER-CENT ADEG PER-CENT KEV C240400300020 10.0 150.0 0.3 5.0 C240400300021 ENDCOMMON 3 0 C240400300022 DATA 2 135 C240400300023 EN DATA C240400300024 KEV MB/SR C240400300025 512.715 0.223 C240400300026 514.213 0.521 C240400300027 514.599 2.254 C240400300028 515.471 4.284 C240400300029 515.587 2.601 C240400300030 515.922 5.076 C240400300031 516.849 6.314 C240400300032 517.884 5.968 C240400300033 518.947 5.227 C240400300034 520.020 4.336 C240400300035 520.400 6.168 C240400300036 520.574 3.644 C240400300037 521.165 2.407 C240400300038 522.245 1.417 C240400300039 523.790 1.023 C240400300040 524.330 0.528 C240400300041 525.366 0.182 C240400300042 666.516 0.127 C240400300043 668.010 0.474 C240400300044 669.483 1.119 C240400300045 670.458 1.664 C240400300046 670.820 3.743 C240400300047 670.899 2.604 C240400300048 671.880 3.051 C240400300049 672.820 4.091 C240400300050 673.866 3.596 C240400300051 673.910 2.953 C240400300052 674.970 2.261 C240400300053 676.046 1.321 C240400300054 677.109 0.579 C240400300055 679.662 0.234 C240400300056 683.214 0.088 C240400300057 731.276 0.071 C240400300058 738.847 0.323 C240400300059 741.872 0.473 C240400300060 742.860 0.821 C240400300061 744.241 2.801 C240400300062 745.102 4.980 C240400300063 747.526 6.516 C240400300064 749.078 6.022 C240400300065 750.253 3.647 C240400300066 752.369 2.312 C240400300067 753.456 1.224 C240400300068 754.006 0.580 C240400300069 756.556 0.285 C240400300070 759.099 0.089 C240400300071 818.685 0.070 C240400300072 820.654 0.587 C240400300073 822.205 0.228 C240400300074 822.643 0.899 C240400300075 823.113 1.260 C240400300076 824.607 1.468 C240400300077 826.148 1.211 C240400300078 827.204 0.749 C240400300079 828.754 0.389 C240400300080 830.290 0.185 C240400300081 923.730 0.127 C240400300082 924.087 1.622 C240400300083 924.138 1.106 C240400300084 924.714 0.385 C240400300085 925.536 2.293 C240400300086 925.939 3.325 C240400300087 927.489 2.965 C240400300088 929.060 2.400 C240400300089 930.152 1.576 C240400300090 930.708 1.062 C240400300091 931.789 0.341 C240400300092 933.335 0.033 C240400300093 1016.134 0.325 C240400300094 1055.983 0.830 C240400300095 1066.063 1.046 C240400300096 1073.633 1.106 C240400300097 1079.678 1.267 C240400300098 1084.723 1.323 C240400300099 1089.267 1.328 C240400300100 1093.302 1.384 C240400300101 1096.332 1.387 C240400300102 1096.807 1.697 C240400300103 1098.286 2.059 C240400300104 1099.225 2.782 C240400300105 1101.189 3.351 C240400300106 1102.229 3.042 C240400300107 1104.780 2.787 C240400300108 1105.310 2.530 C240400300109 1105.866 2.015 C240400300110 1106.897 1.810 C240400300111 1109.432 1.710 C240400300112 1111.977 1.506 C240400300113 1112.518 1.146 C240400300114 1115.527 1.355 C240400300115 1120.557 1.567 C240400300116 1125.117 1.417 C240400300117 1130.198 1.113 C240400300118 1134.717 1.375 C240400300119 1140.293 1.175 C240400300120 1150.383 1.288 C240400300121 1164.997 1.612 C240400300122 1209.824 3.006 C240400300123 1213.345 3.309 C240400300124 1220.403 3.663 C240400300125 1223.401 4.215 C240400300126 1228.436 4.569 C240400300127 1231.963 4.771 C240400300128 1235.457 5.473 C240400300129 1238.444 6.175 C240400300130 1241.394 7.427 C240400300131 1244.303 9.279 C240400300132 1246.802 9.731 C240400300133 1250.920 8.684 C240400300134 1254.974 8.586 C240400300135 1259.049 8.189 C240400300136 1262.525 9.141 C240400300137 1266.046 9.444 C240400300138 1268.561 9.646 C240400300139 1270.588 9.597 C240400300140 1271.569 10.048 C240400300141 1272.554 10.448 C240400300142 1276.597 10.501 C240400300143 1278.183 9.502 C240400300144 1283.789 8.906 C240400300145 1293.992 7.662 C240400300146 1299.615 6.816 C240400300147 1315.386 5.527 C240400300148 1325.517 5.333 C240400300149 1335.173 4.690 C240400300150 1350.438 3.400 C240400300151 1375.277 2.667 C240400300152 1400.592 2.383 C240400300153 1424.395 1.999 C240400300154 1449.703 1.816 C240400300155 1475.000 1.783 C240400300156 1500.807 1.700 C240400300157 1525.602 1.617 C240400300158 1555.968 1.437 C240400300159 1577.707 1.652 C240400300160 ENDDATA 137 0 C240400300161 ENDSUBENT 160 0 C240400399999 SUBENT C2404004 20190813 C187C240400400001 BIB 3 6 C240400400002 REACTION 1(8-O-17(P,0),,EN) C240400400003 2(8-O-17(P,A),,WID) C240400400004 ERR-ANALYS (DATA-ERR) No details on sources of uncertainties. C240400400005 STATUS (DEP,C2404002) C240400400006 (DEP,C2404003) C240400400007 (TABLE) Table I, page 352. C240400400008 ENDBIB 6 0 C240400400009 NOCOMMON 0 0 C240400400010 DATA 5 10 C240400400011 DATA-CM 1DATA-ERR 1DATA 2DATA-ERR 2DATA-MAX 2 C240400400012 KEV KEV KEV KEV KEV C240400400013 489.0 2.0 2.0 C240400400014 635.0 2.0 2.0 C240400400015 705.0 3.0 3.1 1.4 C240400400016 779.0 3.0 4.5 C240400400017 875.0 3.0 1.2 C240400400018 1035.0 6.0 85.0 5.0 C240400400019 1040.0 4.0 3.0 C240400400020 1177.0 5.0 10.0 3.0 C240400400021 1203.0 5.0 79.0 5.0 C240400400022 1260.0 10.0 C240400400023 ENDDATA 12 0 C240400400024 ENDSUBENT 23 0 C240400499999 ENDENTRY 4 0 C240499999999