ENTRY 13745 20010829 00001374500000001 SUBENT 13745001 20010829 00001374500100001 BIB 16 37 1374500100002 INSTITUTE (1USALAS) 1374500100003 REFERENCE (J,PR/C,53,616,199602) 1374500100004 AUTHOR (S.Raman,E.K.Warburton,J.W.Starner,E.T.Jurney,J.E.Lynn,1374500100005 P.Tikkanen,J.Keinonen) 1374500100006 TITLE Spectroscopy of 20F levels 1374500100007 FACILITY (REAC) Internal target facility at the 8-MW Los Alamos 1374500100008 Omega West Reactor. 1374500100009 INC-SOURCE (THCOL) Neutron flux ~6E+11 n/cm**2 s. 1374500100010 INC-SPECT Approximately Maxwellian spectrum corresponding to a 1374500100011 temperature of 350 K. 1374500100012 SAMPLE 4.30-g Teflon target placed in the thermal reactor 1374500100013 column 1374500100014 DETECTOR (GE-IN) 30-cm**3 coaxial intrinsic Ge detector placed 1374500100015 inside a 20-cm-diam x 30-cm-long NaI(Tl) annulus and 1374500100016 operated either in a Compton-suppressed or in a 1374500100017 pair-spectrometer mode. 1374500100018 MONITOR The primary calibration energies used: annihilation 1374500100019 gamma radiation - 511.000 keV, capture gamma ray of 1374500100020 1-H-1(N,G) reaction - 2223.253 keV and ground state 1374500100021 transiton in the 6-C-12(N,G) reaction - 4945.303 keV. 1374500100022 (1-H-1(N,G)1-H-2,,SIG,,MXW) for 1H present in a 1374500100023 100.0-mg CH(2) standarD, assuming 1/v dependence for 1374500100024 both 1H and 19F capture cross sections. 1374500100025 CORRECTION Corrected for self-absorption and attenuation in the 1374500100026 sample. 1374500100027 ERR-ANALYS (DATA-ERR) Absolute uncertainties given. 1374500100028 COMMENT Two low-energy primary E1 transitions of energies 584 1374500100029 and 665 keV (populating states at 6018 and 5936 keV) 1374500100030 together account for more than half of the total 1374500100031 capture cross sections. 1374500100032 ADD-RES The neutron separation energy of 20F has been 1374500100033 determined as 6601.35 +/- 0.04 keV. 1374500100034 Lifetime values for 25 levels has been measured by the 1374500100035 Doppler-shift-attenuation method. 1374500100036 Level spin and parity assignments have been done. 1374500100037 STATUS No reply from S. Raman to author proof. 1374500100038 HISTORY (20010726C) IS 1374500100039 ENDBIB 37 0 1374500100040 COMMON 3 3 1374500100041 EN-DUMMY MONIT MONIT-ERR 1374500100042 EV MB MB 1374500100043 0.0253 332.6 0.7 1374500100044 ENDCOMMON 3 0 1374500100045 ENDSUBENT 44 0 1374500199999 SUBENT 13745002 20010726 00001374500200001 BIB 3 3 1374500200002 REACTION (9-F-19(N,G)9-F-20,PAR,SIG,,SPA) 1374500200003 METHOD (GSPEC) 1374500200004 STATUS Data taken from Table II of reference. 1374500200005 ENDBIB 3 0 1374500200006 NOCOMMON 0 0 1374500200007 DATA 4 168 1374500200008 E E-ERR DATA DATA-ERR 1374500200009 KEV KEV MB MB 1374500200010 166.78 0.05 0.44 0.04 1374500200011 252.65 0.23 0.008 0.002 1374500200012 302.2 0.3 0.005 0.002 1374500200013 325.73 0.14 0.041 0.003 1374500200014 534.60 0.08 0.013 0.002 1374500200015 556.41 0.03 0.202 0.013 1374500200016 583.55 0.03 3.60 0.15 1374500200017 620.44 0.05 0.023 0.002 1374500200018 653.2 0.3 0.020 0.003 1374500200019 656.00 0.03 1.98 0.10 1374500200020 661.63 0.04 0.151 0.020 1374500200021 662.24 0.14 0.102 0.015 1374500200022 665.21 0.03 1.49 0.08 1374500200023 670.1 0.6 0.003 0.001 1374500200024 691.4 0.3 0.004 0.002 1374500200025 734.84 0.12 0.006 0.002 1374500200026 771.71 0.10 0.008 0.002 1374500200027 791.2 0.4 0.004 0.001 1374500200028 793.36 0.19 0.007 0.002 1374500200029 803.65 0.11 0.009 0.002 1374500200030 820.9 0.4 0.005 0.002 1374500200031 822.69 0.04 0.219 0.012 1374500200032 885.0 0.3 0.005 0.001 1374500200033 894.1 0.5 0.003 0.001 1374500200034 978.19 0.06 0.061 0.010 1374500200035 983.53 0.03 1.16 0.06 1374500200036 987.2 0.4 0.004 0.001 1374500200037 1020.9 0.4 0.003 0.001 1374500200038 1035.0 0.3 0.009 0.002 1374500200039 1046.00 0.04 0.177 0.009 1374500200040 1056.78 0.03 0.94 0.04 1374500200041 1135.38 0.17 0.009 0.002 1374500200042 1148.05 0.04 0.264 0.015 1374500200043 1187.70 0.06 0.045 0.003 1374500200044 1282.14 0.04 0.086 0.005 1374500200045 1306.2 0.3 0.009 0.002 1374500200046 1309.17 0.03 0.76 0.03 1374500200047 1318.52 0.10 0.023 0.002 1374500200048 1371.53 0.04 0.145 0.009 1374500200049 1375.2 0.4 0.005 0.002 1374500200050 1387.90 0.03 0.83 0.03 1374500200051 1392.22 0.05 0.078 0.006 1374500200052 1542.50 0.04 0.274 0.012 1374500200053 1545.87 0.16 0.013 0.002 1374500200054 1555.0 0.4 0.005 0.001 1374500200055 1644.50 0.08 0.073 0.006 1374500200056 1708.52 0.22 0.026 0.003 1374500200057 1742.7 0.3 0.006 0.002 1374500200058 1836.50 0.22 0.016 0.002 1374500200059 1843.74 0.03 0.61 0.03 1374500200060 1853.96 0.22 0.013 0.002 1374500200061 1935.50 0.05 0.073 0.005 1374500200062 1970.73 0.04 0.090 0.009 1374500200063 1970.95 0.05 0.010 0.003 1374500200064 2009.52 0.07 0.047 0.004 1374500200065 2038.08 0.18 0.015 0.002 1374500200066 2042.0 0.6 0.005 0.002 1374500200067 2043.89 0.06 0.068 0.005 1374500200068 2052.8 0.6 0.005 0.001 1374500200069 2079.72 0.21 0.011 0.002 1374500200070 2120.95 0.16 0.014 0.002 1374500200071 2143.26 0.03 0.196 0.009 1374500200072 2179.09 0.04 0.091 0.006 1374500200073 2187.96 0.20 0.013 0.002 1374500200074 2194.16 0.03 0.133 0.006 1374500200075 2208.5 0.7 0.002 0.001 1374500200076 2229.8 0.4 0.052 0.005 1374500200077 2232.9 0.9 0.021 0.003 1374500200078 2255.82 0.04 0.087 0.005 1374500200079 2309.96 0.06 0.041 0.004 1374500200080 2324.11 0.03 0.117 0.005 1374500200081 2337.58 0.14 0.014 0.003 1374500200082 2346.30 0.16 0.021 0.004 1374500200083 2349.55 0.13 0.031 0.003 1374500200084 2352.44 0.21 0.017 0.003 1374500200085 2370.88 0.21 0.008 0.002 1374500200086 2427.83 0.04 0.190 0.007 1374500200087 2431.08 0.03 0.35 0.03 1374500200088 2431.43 0.03 0.07 0.03 1374500200089 2447.58 0.04 0.141 0.007 1374500200090 2458.0 0.4 0.006 0.001 1374500200091 2469.34 0.04 0.197 0.008 1374500200092 2504.54 0.18 0.038 0.004 1374500200093 2519.05 0.06 0.070 0.005 1374500200094 2529.20 0.03 0.58 0.03 1374500200095 2529.55 0.03 0.09 0.03 1374500200096 2556.35 0.15 0.016 0.003 1374500200097 2600.3 0.6 0.004 0.002 1374500200098 2602.75 0.09 0.035 0.003 1374500200099 2623.18 0.08 0.044 0.003 1374500200100 2636.11 0.05 0.097 0.005 1374500200101 2655.74 0.06 0.078 0.006 1374500200102 2690.5 0.3 0.006 0.001 1374500200103 2697.9 0.5 0.004 0.001 1374500200104 2864.68 0.13 0.016 0.004 1374500200105 2921.01 0.08 0.094 0.005 1374500200106 2930.31 0.10 0.086 0.005 1374500200107 2933.76 0.25 0.023 0.003 1374500200108 2965.90 0.09 0.091 0.005 1374500200109 2969.7 0.4 0.016 0.003 1374500200110 2981.25 0.18 0.035 0.004 1374500200111 3014.58 0.03 0.405 0.016 1374500200112 3023.90 0.09 0.032 0.004 1374500200113 3025.10 0.04 0.076 0.005 1374500200114 3051.43 0.04 0.297 0.012 1374500200115 3070.9 0.3 0.020 0.003 1374500200116 3074.81 0.06 0.189 0.008 1374500200117 3098.1 0.4 0.007 0.002 1374500200118 3112.72 0.06 0.240 0.009 1374500200119 3152.1 0.4 0.014 0.003 1374500200120 3219.89 0.12 0.061 0.004 1374500200121 3293.23 0.22 0.026 0.003 1374500200122 3387.56 0.11 0.061 0.005 1374500200123 3475.3 0.4 0.005 0.001 1374500200124 3488.13 0.04 0.72 0.03 1374500200125 3534.4 0.4 0.014 0.003 1374500200126 3578.6 0.5 0.009 0.002 1374500200127 3586.23 0.06 0.290 0.012 1374500200128 3589.47 0.08 0.178 0.007 1374500200129 3607.8 0.3 0.021 0.003 1374500200130 3679.91 0.23 0.087 0.006 1374500200131 3711.0 0.5 0.012 0.003 1374500200132 3741.44 0.11 0.058 0.005 1374500200133 3823.05 0.09 0.106 0.006 1374500200134 3891.39 0.25 0.018 0.003 1374500200135 3894.2 0.4 0.012 0.003 1374500200136 3916.9 0.5 0.008 0.003 1374500200137 3964.85 0.04 0.441 0.016 1374500200138 3973.47 0.20 0.024 0.003 1374500200139 4009.3 0.5 0.010 0.003 1374500200140 4046.71 0.23 0.036 0.003 1374500200141 4070.0 0.6 0.007 0.002 1374500200142 4081.77 0.10 0.054 0.004 1374500200143 4092.2 0.4 0.017 0.003 1374500200144 4095.01 0.23 0.028 0.003 1374500200145 4173.54 0.05 0.167 0.006 1374500200146 4200.56 0.07 0.108 0.006 1374500200147 4225.8 0.7 0.006 0.001 1374500200148 4245.65 0.08 0.093 0.005 1374500200149 4262.5 0.9 0.003 0.001 1374500200150 4313.29 0.25 0.018 0.003 1374500200151 4335.09 0.13 0.047 0.004 1374500200152 4556.81 0.04 0.522 0.020 1374500200153 4626.5 0.5 0.008 0.002 1374500200154 4630.6 0.9 0.006 0.001 1374500200155 4639.0 0.4 0.023 0.004 1374500200156 4708.19 0.12 0.052 0.004 1374500200157 4735.22 0.10 0.054 0.004 1374500200158 4757.02 0.05 0.189 0.008 1374500200159 4878.8 0.6 0.009 0.002 1374500200160 4899.2 0.9 0.007 0.002 1374500200161 4951.91 0.25 0.059 0.006 1374500200162 4954.5 0.7 0.021 0.003 1374500200163 4960.3 0.4 0.027 0.003 1374500200164 5033.50 0.04 0.620 0.024 1374500200165 5279.27 0.10 0.422 0.020 1374500200166 5282.1 0.6 0.008 0.002 1374500200167 5291.40 0.06 0.236 0.010 1374500200168 5318.32 0.25 0.019 0.003 1374500200169 5360.93 0.10 0.119 0.005 1374500200170 5543.67 0.04 0.410 0.016 1374500200171 5554.59 0.11 0.052 0.004 1374500200172 5616.82 0.07 0.138 0.006 1374500200173 5622.5 0.6 0.008 0.002 1374500200174 5935.10 0.11 0.097 0.010 1374500200175 5938.1 0.7 0.011 0.003 1374500200176 6016.72 0.06 0.94 0.04 1374500200177 6600.08 0.08 0.94 0.04 1374500200178 ENDDATA 170 0 1374500200179 ENDSUBENT 178 0 1374500299999 SUBENT 13745003 20010726 00001374500300001 BIB 2 2 1374500300002 REACTION (9-F-19(N,G)9-F-20,,SIG,,SPA) 1374500300003 STATUS Data taken from text in reference. 1374500300004 ENDBIB 2 0 1374500300005 NOCOMMON 0 0 1374500300006 DATA 2 1 1374500300007 DATA DATA-ERR 1374500300008 MB MB 1374500300009 9.51 0.09 1374500300010 ENDDATA 3 0 1374500300011 ENDSUBENT 10 0 1374500399999 ENDENTRY 3 0 1374599999999