ENTRY C2977 20240610 C297700000001 SUBENT C2977001 20240610 20250110 C297700100001 BIB 9 23 C297700100002 TITLE Neutron Spectra From Deuteron and Proton Bombardment C297700100003 of Thick Lithium Targets C297700100004 AUTHOR (C.E.Nelson,F.Purser,P.Von Behren,H.W.Newson) C297700100005 REFERENCE (C,77NBS,,1,1977) C297700100006 INSTITUTE (1USATNL,1USADKE) C297700100007 FACILITY (VDGT,1USATNL) The Triangle Universities Nuclear C297700100008 Laboratory Model FN Tandem Van de Graaff accelerator. C297700100009 DETECTOR (SCIN) The neutron detector consisted of a 8.89 cm C297700100010 diameter by 5.04 cm thick NE 218 liquid scintillator C297700100011 coupled to a 56 DVP photomultiplier. C297700100012 SAMPLE (3-LI-7,ENR=0.9999) The lithium target was enriched C297700100013 to 99.99% 7 Li and was encapsulated in an aluminum C297700100014 container under a helium atmosphere. The upstream C297700100015 face of the lithium was covered with a 3.5 pm C297700100016 molybdenum foil and the target length was 1.9 cm, C297700100017 sufficient to stop 15 MeV deuterons. C297700100018 METHOD (TOF,PSD) A pulsed beam of protons or deuterons from C297700100019 the accelerator was used in conjunction with the TUNL C297700100020 neutron time-of-flight facility. Beam currents of 2-5 C297700100021 nA with a time resolution of 1.5 to 2.0 nsec were used.C297700100022 Pulse shape discrimination was used to discriminate C297700100023 against gamma ray events. C297700100024 HISTORY (20240610C) BP C297700100025 ENDBIB 23 0 C297700100026 NOCOMMON 0 0 C297700100027 ENDSUBENT 26 0 C297700199999 SUBENT C2977002 20240610 20250110 C297700200001 BIB 2 3 C297700200002 REACTION (3-LI-7(D,X)0-NN-1,,PY/DA/DE,,TT/CH) C297700200003 STATUS (CURVE,,C.E.Nelson+,C,77NBS,,1,1977) C297700200004 Figs. 2-4, pages 2-3 of C,77NBS,,1,1977. C297700200005 ENDBIB 3 0 C297700200006 COMMON 1 3 C297700200007 ANG C297700200008 ADEG C297700200009 0.0 C297700200010 ENDCOMMON 3 0 C297700200011 DATA 3 108 C297700200012 EN E DATA C297700200013 MEV MEV P/MEVMUCSR C297700200014 8.0 1.011 1.016E+09 C297700200015 8.0 1.044 9.700E+08 C297700200016 8.0 1.225 9.238E+08 C297700200017 8.0 1.670 9.294E+08 C297700200018 8.0 1.830 9.452E+08 C297700200019 8.0 1.919 9.625E+08 C297700200020 8.0 2.260 9.877E+08 C297700200021 8.0 2.352 1.002E+09 C297700200022 8.0 2.443 1.016E+09 C297700200023 8.0 2.613 1.028E+09 C297700200024 8.0 2.998 1.014E+09 C297700200025 8.0 3.130 9.827E+08 C297700200026 8.0 3.236 9.217E+08 C297700200027 8.0 3.434 8.748E+08 C297700200028 8.0 3.544 8.185E+08 C297700200029 8.0 3.753 7.841E+08 C297700200030 8.0 3.889 7.575E+08 C297700200031 8.0 4.077 6.996E+08 C297700200032 8.0 4.338 6.339E+08 C297700200033 8.0 4.535 5.855E+08 C297700200034 8.0 4.749 5.573E+08 C297700200035 8.0 5.107 5.118E+08 C297700200036 8.0 5.320 4.821E+08 C297700200037 8.0 5.628 4.711E+08 C297700200038 8.0 6.021 3.741E+08 C297700200039 8.0 6.482 1.724E+08 C297700200040 8.0 6.874 7.391E+07 C297700200041 8.0 7.177 5.661E+07 C297700200042 8.0 8.276 4.059E+07 C297700200043 8.0 8.824 3.102E+07 C297700200044 8.0 9.613 2.448E+07 C297700200045 8.0 10.247 2.268E+07 C297700200046 8.0 11.118 1.924E+07 C297700200047 8.0 11.994 2.204E+07 C297700200048 8.0 13.028 2.322E+07 C297700200049 8.0 14.303 2.743E+07 C297700200050 8.0 15.735 2.847E+07 C297700200051 8.0 17.327 3.257E+07 C297700200052 8.0 19.153 3.033E+07 C297700200053 8.0 21.445 1.543E+07 C297700200054 8.0 23.977 3.561E+06 C297700200055 12.0 0.845 5.238E+08 C297700200056 12.0 0.904 5.072E+08 C297700200057 12.0 1.448 5.176E+08 C297700200058 12.0 1.768 5.325E+08 C297700200059 12.0 1.940 5.520E+08 C297700200060 12.0 1.959 5.700E+08 C297700200061 12.0 2.221 6.029E+08 C297700200062 12.0 2.426 6.539E+08 C297700200063 12.0 2.868 7.138E+08 C297700200064 12.0 3.314 7.767E+08 C297700200065 12.0 3.649 8.067E+08 C297700200066 12.0 4.126 8.260E+08 C297700200067 12.0 4.864 8.033E+08 C297700200068 12.0 5.058 7.702E+08 C297700200069 12.0 5.385 7.175E+08 C297700200070 12.0 5.935 6.603E+08 C297700200071 12.0 6.608 5.745E+08 C297700200072 12.0 6.950 5.368E+08 C297700200073 12.0 7.559 4.630E+08 C297700200074 12.0 8.010 3.833E+08 C297700200075 12.0 8.529 2.960E+08 C297700200076 12.0 9.141 2.253E+08 C297700200077 12.0 9.867 1.905E+08 C297700200078 12.0 10.574 6.413E+07 C297700200079 12.0 11.514 1.577E+07 C297700200080 12.0 12.504 1.545E+07 C297700200081 12.0 13.571 1.660E+07 C297700200082 12.0 14.865 1.618E+07 C297700200083 12.0 16.387 1.568E+07 C297700200084 12.0 18.063 1.664E+07 C297700200085 12.0 20.042 1.600E+07 C297700200086 12.0 22.321 1.075E+07 C297700200087 12.0 25.135 8.330E+06 C297700200088 12.0 28.024 4.386E+06 C297700200089 15.0 0.973 5.372E+09 C297700200090 15.0 1.088 5.049E+09 C297700200091 15.0 1.138 4.814E+09 C297700200092 15.0 1.345 4.666E+09 C297700200093 15.0 1.628 4.548E+09 C297700200094 15.0 2.078 4.606E+09 C297700200095 15.0 2.327 4.869E+09 C297700200096 15.0 2.506 5.163E+09 C297700200097 15.0 2.752 5.397E+09 C297700200098 15.0 3.094 5.851E+09 C297700200099 15.0 3.260 6.027E+09 C297700200100 15.0 3.586 6.320E+09 C297700200101 15.0 3.994 6.686E+09 C297700200102 15.0 4.476 7.052E+09 C297700200103 15.0 4.953 7.374E+09 C297700200104 15.0 5.859 7.548E+09 C297700200105 15.0 6.807 7.413E+09 C297700200106 15.0 7.889 7.146E+09 C297700200107 15.0 8.432 6.660E+09 C297700200108 15.0 9.067 5.645E+09 C297700200109 15.0 9.655 4.880E+09 C297700200110 15.0 10.383 4.041E+09 C297700200111 15.0 11.239 3.010E+09 C297700200112 15.0 12.177 2.053E+09 C297700200113 15.0 13.213 1.331E+09 C297700200114 15.0 14.613 5.490E+08 C297700200115 15.0 15.976 1.343E+08 C297700200116 15.0 17.676 1.151E+08 C297700200117 15.0 19.822 1.095E+08 C297700200118 15.0 21.892 8.938E+07 C297700200119 15.0 24.631 9.689E+07 C297700200120 15.0 27.812 8.854E+07 C297700200121 15.0 31.066 6.532E+07 C297700200122 ENDDATA 110 0 C297700200123 ENDSUBENT 122 0 C297700299999 SUBENT C2977003 20240610 20250110 C297700300001 BIB 2 3 C297700300002 REACTION (3-LI-7(P,X)0-NN-1,,PY/DA/DE,,TT/CH) C297700300003 STATUS (CURVE,,C.E.Nelson+,C,77NBS,,1,1977) C297700300004 Fig. 5, page 3 of C,77NBS,,1,1977. C297700300005 ENDBIB 3 0 C297700300006 COMMON 2 3 C297700300007 EN ANG C297700300008 MEV ADEG C297700300009 15.0 0.0 C297700300010 ENDCOMMON 3 0 C297700300011 DATA 2 37 C297700300012 E DATA C297700300013 MEV P/MEVMUCSR C297700300014 1.017 1.296E+09 C297700300015 1.040 1.255E+09 C297700300016 1.089 1.181E+09 C297700300017 1.150 1.137E+09 C297700300018 1.204 1.075E+09 C297700300019 1.382 1.032E+09 C297700300020 1.559 9.851E+08 C297700300021 1.691 9.229E+08 C297700300022 1.867 8.743E+08 C297700300023 1.973 8.470E+08 C297700300024 2.043 8.256E+08 C297700300025 2.302 7.905E+08 C297700300026 2.508 8.174E+08 C297700300027 2.761 8.656E+08 C297700300028 2.814 9.004E+08 C297700300029 2.991 9.545E+08 C297700300030 3.098 1.028E+09 C297700300031 3.387 1.067E+09 C297700300032 3.607 1.029E+09 C297700300033 3.739 9.693E+08 C297700300034 4.095 8.816E+08 C297700300035 4.302 8.116E+08 C297700300036 4.511 7.475E+08 C297700300037 4.673 6.620E+08 C297700300038 5.029 5.763E+08 C297700300039 5.277 5.121E+08 C297700300040 5.879 4.533E+08 C297700300041 6.284 3.909E+08 C297700300042 6.652 3.342E+08 C297700300043 7.529 2.791E+08 C297700300044 8.635 2.120E+08 C297700300045 9.353 1.511E+08 C297700300046 10.008 1.311E+08 C297700300047 10.825 1.225E+08 C297700300048 11.729 1.370E+08 C297700300049 12.708 1.438E+08 C297700300050 14.292 2.545E+06 C297700300051 ENDDATA 39 0 C297700300052 ENDSUBENT 51 0 C297700399999 SUBENT C2977004 20240610 20250110 C297700400001 BIB 3 6 C297700400002 REACTION (3-LI-7(D,X)0-NN-1,,PY/DA/DE,,TT/CH) C297700400003 ANALYSIS The average neutron energies calculated from these C297700400004 neutron yield data and numerical values of the yields. C297700400005 STATUS (DEP,C2977002) C297700400006 (TABLE,,C.E.Nelson+,C,77NBS,,1,1977) C297700400007 Table 2, page 3 of C,77NBS,,1,1977. C297700400008 ENDBIB 6 0 C297700400009 NOCOMMON 0 0 C297700400010 DATA 4 15 C297700400011 EN ANG E-MEAN DATA C297700400012 MEV ADEG MEV P/MEVMUCSR C297700400013 8. 0. 4.4 3.8E+9 C297700400014 8. 10. 4.5 3.4E+9 C297700400015 8. 20. 4.8 2.7E+9 C297700400016 8. 30. 5.7 2.0E+9 C297700400017 8. 45. 6.0 0.85E+9 C297700400018 12. 0. 5.5 12.0E+9 C297700400019 12. 10. 5.7 9.6E+9 C297700400020 12. 20. 5.9 6.7E+9 C297700400021 12. 30. 5.7 4.5E+9 C297700400022 12. 45. 5.3 3.0E+9 C297700400023 15. 0. 6.5 25.0E+9 C297700400024 15. 10. 6.6 20.0E+9 C297700400025 15. 20. 6.6 13.0E+9 C297700400026 15. 30. 5.9 8.2E+9 C297700400027 15. 45. 5.4 5.8E+9 C297700400028 ENDDATA 17 0 C297700400029 ENDSUBENT 28 0 C297700499999 SUBENT C2977005 20240610 20250110 C297700500001 BIB 3 6 C297700500002 REACTION (3-LI-7(P,X)0-NN-1,,PY/DA/DE,,TT/CH) C297700500003 ANALYSIS The average neutron energies calculated from these C297700500004 neutron yield data and numerical values of the yields. C297700500005 STATUS (DEP,C2977003) C297700500006 (TABLE,,C.E.Nelson+,C,77NBS,,1,1977) C297700500007 Table 2, page 3 of C,77NBS,,1,1977. C297700500008 ENDBIB 6 0 C297700500009 NOCOMMON 0 0 C297700500010 DATA 4 5 C297700500011 EN ANG E-MEAN DATA C297700500012 MEV ADEG MEV P/MEVMUCSR C297700500013 15. 0. 4.7 4.1E+9 C297700500014 15. 10. 4.6 4.0E+9 C297700500015 15. 20. 4.5 4.0E+9 C297700500016 15. 30. 4.5 3.8E+9 C297700500017 15. 45. 4.5 3.4E+9 C297700500018 ENDDATA 7 0 C297700500019 ENDSUBENT 18 0 C297700599999 ENDENTRY 5 0 C297799999999