ENTRY F0787 20061031 F026F078700000001 SUBENT F0787001 20061031 F026F078700100001 BIB 9 22 F078700100002 TITLE A study of (3He,n)reactions on 24Mg, 28Si and 32S. F078700100003 AUTHOR (W.R.McMurray,P.Van Der Merwe,I.J.Van Heerden) F078700100004 INSTITUTE (3SAFSUN) F078700100005 REFERENCE (J,NP/A,92,401,1967) F078700100006 FACILITY (VDG)The SUNI 6 MeV Van de Graaff accelerator and a F078700100007 time-of-flight neutron spectrometer. F078700100008 DETECTOR (SCIN)The neutron detector consists of a glass cell F078700100009 12 cm*4 cm filled with NE213 liquid scintillator. This F078700100010 cell is viewed by a 12.5 cm, 58 AVP photomultiplier.A F078700100011 fast pulse is taken from the 12th dynode for timing F078700100012 purposes. Pulse shape discrimination was applied to F078700100013 reject gamma events in the scintillator. F078700100014 METHOD (PSD) F078700100015 (TOF) F078700100016 ERR-ANALYS (ANG-ERR-D)Digitizing error F078700100017 (ERR-DIG)Digitizing error F078700100018 (DATA-ERR)Error from the graphic bars F078700100019 The most important additional sources of error in the F078700100020 angular distributions are uncertainties in the relativeF078700100021 efficiency of the detector and the estimation of F078700100022 backgrounds. These are estimated to be less than 15%. F078700100023 HISTORY (20061012C) F078700100024 ENDBIB 22 0 F078700100025 NOCOMMON 0 0 F078700100026 ENDSUBENT 25 0 F078700199999 SUBENT F0787002 20061031 F026F078700200001 BIB 3 9 F078700200002 REACTION (12-MG-24(HE3,N)14-SI-26,PAR,DA,,REL) F078700200003 SAMPLE A 99.93% enriched 24MgO target was obtained from AERE, F078700200004 Harwell. It was deposited on a 0.01 cm tantalum backingF078700200005 to a nominal thickness of 67 mu-g/cm2. The total F078700200006 thickness of the 24MgO target was determined from the F078700200007 measured width of a narrow resonance in the 24Mg(a,g) F078700200008 reaction at 3.21 MeV. This was converted to a thicknessF078700200009 of 22 keV for 3He at 5.6 MeV. F078700200010 STATUS (CURVE)Fig.9 F078700200011 ENDBIB 9 0 F078700200012 COMMON 2 3 F078700200013 ANG-ERR-D ERR-DIG F078700200014 ADEG ARB-UNITS F078700200015 0.068 0.0183 F078700200016 ENDCOMMON 3 0 F078700200017 DATA 5 70 F078700200018 E-LVL EN ANG-CM DATA-CM DATA-ERR F078700200019 MEV MEV ADEG ARB-UNITS ARB-UNITS F078700200020 0.0000 4.9000 10.602 3.1860 0.23890 F078700200021 0.0000 4.9000 21.642 1.8107 0.20136 F078700200022 0.0000 4.9000 31.653 1.1385 0.15699 F078700200023 0.0000 4.9000 43.017 0.58905 0.14334 F078700200024 0.0000 4.9000 52.672 0.99184 0.13993 F078700200025 0.0000 4.9000 64.022 1.3127 0.13993 F078700200026 0.0000 4.9000 74.191 1.3128 0.14675 F078700200027 0.0000 4.9000 84.027 0.99887 0.14334 F078700200028 0.0000 4.9000 93.860 0.85901 0.12969 F078700200029 0.0000 4.9000 113.01 0.70556 0.13310 F078700200030 0.0000 4.9000 123.01 0.66467 0.15017 F078700200031 0.0000 4.9000 132.84 0.75006 0.15017 F078700200032 0.0000 4.9000 142.51 0.59655 0.11945 F078700200033 0.0000 5.2000 1.5779 3.7927 0.34646 F078700200034 0.0000 5.2000 21.668 1.3403 0.21399 F078700200035 0.0000 5.2000 42.268 0.19904 0.17663 F078700200036 0.0000 5.2000 73.174 0.71190 0.19021 F078700200037 0.0000 5.2000 93.946 0.44694 0.18002 F078700200038 0.0000 5.2000 114.04 0.21935 0.16983 F078700200039 0.0000 5.2000 132.11 1.1602 0.19701 F078700200040 0.0000 5.6000 4.9861 3.7828 0.15269 F078700200041 0.0000 5.6000 10.756 3.4029 0.12215 F078700200042 0.0000 5.6000 20.817 1.4384 0.98401E-01 F078700200043 0.0000 5.6000 31.681 0.64117 0.95008E-01 F078700200044 0.0000 5.6000 41.682 0.30200 0.84828E-01 F078700200045 0.0000 5.6000 52.676 0.55665 0.91615E-01 F078700200046 0.0000 5.6000 63.333 0.76379 0.95008E-01 F078700200047 0.0000 5.6000 73.823 0.91664 0.95008E-01 F078700200048 0.0000 5.6000 83.818 0.73017 0.88221E-01 F078700200049 0.0000 5.6000 93.823 0.25189 0.10179 F078700200050 0.0000 5.6000 103.48 0.24691E-010.37325E-01 F078700200051 0.0000 5.6000 113.30 0.31625E-010.37325E-01 F078700200052 0.0000 5.6000 122.61 0.28371E-010.33931E-01 F078700200053 0.0000 5.6000 132.06 0.84626 0.10179 F078700200054 0.0000 5.6000 142.05 0.76497 0.10519 F078700200055 0.0000 5.6000 148.81 1.1485 0.95008E-01 F078700200056 2.7800 4.9000 1.2714 1.5916 0.14925 F078700200057 2.7800 4.9000 9.9124 1.1981 0.13229 F078700200058 2.7800 4.9000 21.101 1.4355 0.13908 F078700200059 2.7800 4.9000 31.607 1.1709 0.15604 F078700200060 2.7800 4.9000 42.792 0.95713 0.14925 F078700200061 2.7800 4.9000 53.300 0.95710 0.14925 F078700200062 2.7800 4.9000 66.350 0.81798 0.12551 F078700200063 2.7800 4.9000 75.673 0.97399 0.14247 F078700200064 2.7800 4.9000 85.843 1.0181 0.14925 F078700200065 2.7800 4.9000 95.165 1.0350 0.13568 F078700200066 2.7800 4.9000 104.32 1.0587 0.14925 F078700200067 2.7800 4.9000 114.49 1.3674 0.14247 F078700200068 2.7800 4.9000 124.83 1.9067 0.14586 F078700200069 2.7800 4.9000 135.00 2.0050 0.14925 F078700200070 2.7800 4.9000 143.99 2.1135 0.14247 F078700200071 2.7800 5.2000 1.7025 1.9960 0.19296 F078700200072 2.7800 5.2000 22.699 2.6732 0.20311 F078700200073 2.7800 5.2000 43.379 2.2603 0.22343 F078700200074 2.7800 5.2000 75.928 1.4380 0.17942 F078700200075 2.7800 5.2000 96.412 2.3488 0.18957 F078700200076 2.7800 5.2000 116.24 1.9833 0.19296 F078700200077 2.7800 5.2000 136.05 2.9618 0.19634 F078700200078 2.7800 5.6000 6.3812 1.9933 0.97643E-01 F078700200079 2.7800 5.6000 12.599 2.1515 0.10774 F078700200080 2.7800 5.6000 23.187 2.2492 0.11448 F078700200081 2.7800 5.6000 34.111 2.3839 0.15825 F078700200082 2.7800 5.6000 45.204 2.1179 0.10774 F078700200083 2.7800 5.6000 54.785 1.9832 0.12121 F078700200084 2.7800 5.6000 76.466 1.6566 0.11785 F078700200085 2.7800 5.6000 86.718 1.7745 0.11111 F078700200086 2.7800 5.6000 96.467 1.5018 0.10438 F078700200087 2.7800 5.6000 116.47 2.0776 0.12121 F078700200088 2.7800 5.6000 125.54 2.2527 0.12458 F078700200089 2.7800 5.6000 143.36 1.9732 0.12458 F078700200090 ENDDATA 72 0 F078700200091 ENDSUBENT 90 0 F078700299999 SUBENT F0787003 20061031 F026F078700300001 BIB 3 9 F078700300002 REACTION (14-SI-28(HE3,N)16-S-30,PAR,DA,,REL) F078700300003 SAMPLE Natural silicon targets were made by vacuum evaporationF078700300004 on to 0.25 mm tantalum backing. The thickness of the SiF078700300005 target used at 5.6 MeV was derived from the measured F078700300006 width of a narrow resonance in the reaction F078700300007 30Si(a,g)34S at 3.25 MeV. This yielded a thickness of F078700300008 83 keV for 3He at 5.6 MeV. The 28Si content was F078700300009 70 mu-g/cm2. F078700300010 STATUS (CURVE)Fig.10 F078700300011 ENDBIB 9 0 F078700300012 COMMON 2 3 F078700300013 ANG-ERR-D ERR-DIG F078700300014 ADEG ARB-UNITS F078700300015 0.091 0.0105 F078700300016 ENDCOMMON 3 0 F078700300017 DATA 5 76 F078700300018 E-LVL EN ANG-CM DATA-CM DATA-ERR F078700300019 MEV MEV ADEG ARB-UNITS ARB-UNITS F078700300020 0.0000 5.1400 1.6807 3.3942 0.20478 F078700300021 0.0000 5.1400 11.680 2.1350 0.16041 F078700300022 0.0000 5.1400 21.331 1.2272 0.95563E-01 F078700300023 0.0000 5.1400 31.991 0.46628 0.88737E-01 F078700300024 0.0000 5.1400 42.116 0.60634 0.95563E-01 F078700300025 0.0000 5.1400 53.078 0.97507 0.81911E-01 F078700300026 0.0000 5.1400 63.718 0.86258 0.98976E-01 F078700300027 0.0000 5.1400 73.680 0.81492 0.78498E-01 F078700300028 0.0000 5.1400 84.658 0.67513 0.78498E-01 F078700300029 0.0000 5.1400 94.624 0.49095 0.81911E-01 F078700300030 0.0000 5.1400 104.25 0.39893 0.81911E-01 F078700300031 0.0000 5.1400 114.71 0.67551 0.92150E-01 F078700300032 0.0000 5.1400 123.15 0.74046 0.81911E-01 F078700300033 0.0000 5.1400 133.10 0.90782 0.81911E-01 F078700300034 0.0000 5.1400 142.89 1.0206 0.85324E-01 F078700300035 0.0000 5.6000 5.7692 3.2043 0.58179E-01 F078700300036 0.0000 5.6000 10.697 2.8004 0.68446E-01 F078700300037 0.0000 5.6000 20.889 1.2775 0.61601E-01 F078700300038 0.0000 5.6000 31.766 0.54510 0.51334E-01 F078700300039 0.0000 5.6000 41.969 0.83597 0.58179E-01 F078700300040 0.0000 5.6000 53.366 1.8079 0.58179E-01 F078700300041 0.0000 5.6000 63.741 2.3280 0.65024E-01 F078700300042 0.0000 5.6000 73.601 2.1158 0.47912E-01 F078700300043 0.0000 5.6000 83.632 2.0302 0.54757E-01 F078700300044 0.0000 5.6000 93.657 1.1507 0.47912E-01 F078700300045 0.0000 5.6000 103.86 1.1130 0.54757E-01 F078700300046 0.0000 5.6000 113.72 0.89054 0.58179E-01 F078700300047 0.0000 5.6000 142.79 1.0924 0.51335E-01 F078700300048 2.2100 5.1400 1.0398 1.5982 0.20812 F078700300049 2.2100 5.1400 11.355 1.4773 0.18798 F078700300050 2.2100 5.1400 21.670 1.3262 0.21148 F078700300051 2.2100 5.1400 32.667 1.5476 0.19469 F078700300052 2.2100 5.1400 43.999 1.5677 0.18127 F078700300053 2.2100 5.1400 54.314 1.4166 0.19805 F078700300054 2.2100 5.1400 65.136 1.2722 0.18462 F078700300055 2.2100 5.1400 75.286 1.4433 0.17455 F078700300056 2.2100 5.1400 85.437 1.6077 0.18462 F078700300057 2.2100 5.1400 95.411 1.2686 0.16784 F078700300058 2.2100 5.1400 105.39 1.0638 0.17791 F078700300059 2.2100 5.1400 115.71 1.1947 0.19134 F078700300060 2.2100 5.1400 124.33 1.3557 0.20141 F078700300061 2.2100 5.1400 133.97 1.3658 0.17120 F078700300062 2.2100 5.6000 5.3894 1.5982 0.60382E-01 F078700300063 2.2100 5.6000 11.493 1.7425 0.60382E-01 F078700300064 2.2100 5.6000 22.349 1.8399 0.60382E-01 F078700300065 2.2100 5.6000 42.375 1.5247 0.63737E-01 F078700300066 2.2100 5.6000 54.088 1.2263 0.53673E-01 F078700300067 2.2100 5.6000 64.267 1.2163 0.57028E-01 F078700300068 2.2100 5.6000 75.803 1.2130 0.53673E-01 F078700300069 2.2100 5.6000 85.636 1.5318 0.57028E-01 F078700300070 2.2100 5.6000 105.99 1.7735 0.67091E-01 F078700300071 2.2100 5.6000 115.83 1.8541 0.57028E-01 F078700300072 2.2100 5.6000 126.17 1.8743 0.53673E-01 F078700300073 2.2100 5.6000 144.32 2.1060 0.43610E-01 F078700300074 3.4300 5.1400 1.7723 1.1948 0.20741 F078700300075 3.4300 5.1400 11.591 1.6776 0.17341 F078700300076 3.4300 5.1400 22.928 1.4430 0.18361 F078700300077 3.4300 5.1400 35.278 0.66432 0.19041 F078700300078 3.4300 5.1400 46.279 0.83770 0.17341 F078700300079 3.4300 5.1400 56.092 0.35825 0.17341 F078700300080 3.4300 5.1400 67.768 0.23582 0.18361 F078700300081 3.4300 5.1400 79.107 0.27319 0.18361 F078700300082 3.4300 5.1400 89.092 0.27657 0.21421 F078700300083 3.4300 5.1400 99.077 0.37515 0.23801 F078700300084 3.4300 5.1400 109.23 0.60974 0.30602 F078700300085 3.4300 5.1400 118.54 0.32070 0.25161 F078700300086 3.4300 5.6000 5.9609 1.5954 0.17711 F078700300087 3.4300 5.6000 11.054 2.3106 0.16008 F078700300088 3.4300 5.6000 23.110 2.6308 0.14646 F078700300089 3.4300 5.6000 34.317 2.3924 0.16008 F078700300090 3.4300 5.6000 57.074 1.3297 0.14646 F078700300091 3.4300 5.6000 67.771 1.3911 0.18051 F078700300092 3.4300 5.6000 86.960 1.2855 0.18051 F078700300093 3.4300 5.6000 97.319 0.70308 0.20436 F078700300094 3.4300 5.6000 107.17 1.1050 0.18392 F078700300095 3.4300 5.6000 117.36 1.1322 0.16008 F078700300096 ENDDATA 78 0 F078700300097 ENDSUBENT 96 0 F078700399999 SUBENT F0787004 20061031 F026F078700400001 BIB 3 5 F078700400002 REACTION (16-S-32(HE3,N)18-AR-34,PAR,DA,,REL) F078700400003 SAMPLE Thin natural CdS targets were made by vacuum F078700400004 evaporation on to 0.25 mm tantalum backing. The total F078700400005 thickness of these targets could only be estimated. F078700400006 STATUS (CURVE)Fig.11 F078700400007 ENDBIB 5 0 F078700400008 COMMON 2 3 F078700400009 ANG-ERR-D ERR-DIG F078700400010 ADEG ARB-UNITS F078700400011 0.069 0.0014 F078700400012 ENDCOMMON 3 0 F078700400013 DATA 5 27 F078700400014 E-LVL EN ANG-CM DATA-CM DATA-ERR F078700400015 MEV MEV ADEG ARB-UNITS ARB-UNITS F078700400016 0.0000 5.6000 1.9775 2.1947 0.60688 F078700400017 0.0000 5.6000 12.153 2.4265 0.46368 F078700400018 0.0000 5.6000 22.669 1.4992 0.30003 F078700400019 0.0000 5.6000 32.506 0.89570 0.16365 F078700400020 0.0000 5.6000 43.189 2.0413 0.15001 F078700400021 0.0000 5.6000 53.533 2.8970 0.14320 F078700400022 0.0000 5.6000 65.234 2.9277 0.16024 F078700400023 0.0000 5.6000 84.061 2.0004 0.20116 F078700400024 0.0000 5.6000 93.391 0.58889 0.19093 F078700400025 0.0000 5.6000 104.41 0.99803 0.18411 F078700400026 0.0000 5.6000 114.08 0.64687 0.22161 F078700400027 0.0000 5.6000 124.93 2.6550 0.20457 F078700400028 0.0000 5.6000 144.94 4.2984 0.17388 F078700400029 0.0000 5.6000 154.78 3.7938 0.22843 F078700400030 2.1900 5.6000 1.9501 1.7986 0.39932 F078700400031 2.1900 5.6000 14.099 2.9420 0.24915 F078700400032 2.1900 5.6000 23.547 2.5017 0.17065 F078700400033 2.1900 5.6000 33.841 3.3891 0.19454 F078700400034 2.1900 5.6000 44.807 2.7338 0.15358 F078700400035 2.1900 5.6000 65.391 3.0887 0.18430 F078700400036 2.1900 5.6000 85.974 2.0819 0.20137 F078700400037 2.1900 5.6000 95.421 0.82589 0.15700 F078700400038 2.1900 5.6000 105.55 1.3822 0.17406 F078700400039 2.1900 5.6000 114.49 1.1228 0.16724 F078700400040 2.1900 5.6000 124.78 1.5733 0.20137 F078700400041 2.1900 5.6000 144.18 2.1740 0.20819 F078700400042 2.1900 5.6000 153.97 1.8190 0.19113 F078700400043 ENDDATA 29 0 F078700400044 ENDSUBENT 43 0 F078700499999 SUBENT F0787005 20061031 F026F078700500001 BIB 3 7 F078700500002 REACTION (6-C-12(HE3,N)8-O-14,PAR,DA,,REL) F078700500003 SAMPLE The amount of 12C in the target was determined by F078700500004 comparison with the yield from a 12C target of known F078700500005 thickness (180+-10 mu-g/cm2) and using the known (to F078700500006 within 15%) cross sections for the 12C(He3,n)14O F078700500007 reaction at 5.6 MeV. F078700500008 STATUS (CURVE)Fig.12 F078700500009 ENDBIB 7 0 F078700500010 COMMON 3 3 F078700500011 E-LVL ANG-ERR-D ERR-DIG F078700500012 MEV ADEG ARB-UNITS F078700500013 0. 0.085 0.0042 F078700500014 ENDCOMMON 3 0 F078700500015 DATA 4 26 F078700500016 EN ANG-CM DATA-CM DATA-ERR F078700500017 MEV ADEG ARB-UNITS ARB-UNITS F078700500018 5.14 12.942 6.0021 0.24608 F078700500019 5.14 23.926 5.3316 0.19517 F078700500020 5.14 35.586 4.3217 0.21214 F078700500021 5.14 46.064 4.0331 0.20365 F078700500022 5.14 57.893 3.0826 0.19517 F078700500023 5.14 68.538 2.0048 0.18668 F078700500024 5.14 79.354 1.5889 0.18668 F078700500025 5.14 99.298 1.2408 0.1782 F078700500026 5.14 109.27 1.5462 0.21214 F078700500027 5.14 118.57 2.3013 0.20365 F078700500028 5.14 137.17 2.5472 0.2376 F078700500029 5.14 147.47 1.7156 0.20365 F078700500030 5.6 7.7011 9.3965 0.13577 F078700500031 5.6 13.133 7.5553 0.18668 F078700500032 5.6 24.141 6.7154 0.1782 F078700500033 5.6 34.661 3.6948 0.18668 F078700500034 5.6 46.521 2.1167 0.16123 F078700500035 5.6 57.863 1.7521 0.13577 F078700500036 5.6 68.523 1.939 0.13577 F078700500037 5.6 78.339 1.9053 0.14426 F078700500038 5.6 89.336 2.211 0.1188 F078700500039 5.6 99.987 3.4417 0.12728 F078700500040 5.6 109.8 3.4419 0.12728 F078700500041 5.6 118.77 3.2469 0.12728 F078700500042 5.6 128.92 3.8327 0.11031 F078700500043 5.6 150.25 3.6295 0.10183 F078700500044 ENDDATA 28 0 F078700500045 ENDSUBENT 44 0 F078700599999 SUBENT F0787006 20061031 F026F078700600001 BIB 3 3 F078700600002 REACTION (8-O-16(HE3,N)10-NE-18,PAR,DA,,REL) F078700600003 SAMPLE The 24MgO target content was 5 and 23 mu-g/cm2. F078700600004 STATUS (CURVE)Fig.13 F078700600005 ENDBIB 3 0 F078700600006 COMMON 3 3 F078700600007 E-LVL ANG-ERR-D ERR-DIG F078700600008 MEV ADEG ARB-UNITS F078700600009 0. 0.123 0.0413 F078700600010 ENDCOMMON 3 0 F078700600011 DATA 4 36 F078700600012 EN ANG-CM DATA-CM DATA-ERR F078700600013 MEV ADEG ARB-UNITS ARB-UNITS F078700600014 4.9 0.46315 3.7545 0.11083 F078700600015 4.9 12.191 3.6185 0.11935 F078700600016 4.9 24.268 2.8432 0.11083 F078700600017 4.9 35.834 2.1019 0.11083 F078700600018 4.9 48.075 1.7187 0.1023 F078700600019 4.9 59.978 1.2333 0.11935 F078700600020 4.9 69.839 0.9182 0.1023 F078700600021 4.9 82.076 0.7993 0.11083 F078700600022 4.9 91.933 0.74851 0.18755 F078700600023 4.9 102.13 0.86823 0.33248 F078700600024 4.9 111.97 2.0024 0.8525 F078700600025 4.9 121.99 2.4546 0.97185 F078700600026 4.9 130.8 4.3305 1.347 F078700600027 4.9 140.47 5.3027 1.1594 F078700600028 4.9 149.46 6.4198 1.543 F078700600029 5.2 1.0758 5.0351 0.1698 F078700600030 5.2 24.073 3.3623 0.12735 F078700600031 5.2 45.872 0.78109 0.13584 F078700600032 5.2 79.781 0.084454 0.14433 F078700600033 5.2 101.77 0.56807 0.16131 F078700600034 5.2 120.00 0.96685 0.22074 F078700600035 5.2 139.94 1.1109 0.23772 F078700600036 5.6 5.7912 9.4715 0.11909 F078700600037 5.6 12.469 8.587 0.11059 F078700600038 5.6 23.264 6.4011 0.11909 F078700600039 5.6 34.919 3.7048 0.11058 F078700600040 5.6 44.681 2.1399 0.076559 F078700600041 5.6 56.324 0.58346 0.11909 F078700600042 5.6 68.812 0.08189 0.11058 F078700600043 5.6 79.922 0.5075 0.10208 F078700600044 5.6 90.006 0.87354 0.1276 F078700600045 5.6 100.26 1.2821 0.10208 F078700600046 5.6 110.17 2.3712 0.11058 F078700600047 5.6 119.91 2.6266 0.14461 F078700600048 5.6 129.99 3.7157 0.1276 F078700600049 5.6 147.94 3.9884 0.11058 F078700600050 ENDDATA 38 0 F078700600051 ENDSUBENT 50 0 F078700699999 ENDENTRY 6 0 F078799999999