ENTRY C1692 20171113 C171C169200000001 SUBENT C1692001 20171113 C171C169200100001 BIB 9 24 C169200100002 TITLE Production and Properties of C15 C169200100003 AUTHOR (R.A.Douglas,B.R.Gasten,A.Mukerji) C169200100004 REFERENCE (J,CJP,34,(11),1097,1956) C169200100005 #doi:10.1139/p56-123 C169200100006 INSTITUTE (1USAWIS,1USAIOW,3INDTAT) C169200100007 FACILITY (ACCEL,1USAWIS) The electrostatic generator. C169200100008 SAMPLE (6-C-14,ENR=0.288) Uniform thin C14 targets on 2500 A C169200100009 nickel backings were prepared in a discharge tube C169200100010 containing acetylene (enriched to 28.8% C14). C12 C169200100011 targets were made in the same manner as the Cl4 C169200100012 targets, both starting from BaCO3. C169200100013 DETECTOR (NAICR,SCIN) A 1.75 in. diameter by 2 in. NaI(Tl) C169200100014 crystal was used for gamma detection and a 1% in. C169200100015 diameter by 2 in. plastic scintillator for beta C169200100016 detection. C169200100017 METHOD (ACTIV,EXTB) Since only the C14 targets showed this C169200100018 2.25 sec. activity it was concluded that neither the C169200100019 C12 nor contaminants on the target were responsible C169200100020 for the activity. The identification of the 7.5 +-1.5 C169200100021 sec activity is not quite as definite as that of the C169200100022 2.25 sec component. However, an examination of the C169200100023 half lives of nuclides shows that this activity is C169200100024 almost certainly N16. C169200100025 HISTORY (20171113C) BP C169200100026 ENDBIB 24 0 C169200100027 NOCOMMON 0 0 C169200100028 ENDSUBENT 27 0 C169200199999 SUBENT C1692002 20171113 C171C169200200001 BIB 3 3 C169200200002 REACTION (6-C-14(D,P)6-C-15,,SIG) C169200200003 DECAY-DATA (6-C-15,2.25SEC) C169200200004 STATUS (CURVE) Fig. 6, page 1104. C169200200005 ENDBIB 3 0 C169200200006 NOCOMMON 0 0 C169200200007 DATA 2 74 C169200200008 EN DATA C169200200009 MEV MB C169200200010 1.356 0.201 C169200200011 1.381 0.508 C169200200012 1.412 0.349 C169200200013 1.441 0.810 C169200200014 1.470 1.117 C169200200015 1.497 1.579 C169200200016 1.528 2.351 C169200200017 1.555 3.433 C169200200018 1.584 4.205 C169200200019 1.611 5.598 C169200200020 1.640 6.370 C169200200021 1.667 8.539 C169200200022 1.698 9.311 C169200200023 1.727 10.703 C169200200024 1.752 11.941 C169200200025 1.783 14.265 C169200200026 1.810 17.054 C169200200027 1.843 19.377 C169200200028 1.869 21.517 C169200200029 1.895 23.114 C169200200030 1.897 24.346 C169200200031 1.926 27.051 C169200200032 1.927 25.943 C169200200033 1.952 29.880 C169200200034 1.955 28.279 C169200200035 1.983 27.906 C169200200036 1.984 30.738 C169200200037 1.986 29.260 C169200200038 2.010 31.104 C169200200039 2.016 29.749 C169200200040 2.039 31.963 C169200200041 2.041 30.115 C169200200042 2.043 31.223 C169200200043 2.070 31.589 C169200200044 2.070 33.313 C169200200045 2.098 31.709 C169200200046 2.099 32.817 C169200200047 2.128 32.197 C169200200048 2.128 33.429 C169200200049 2.154 31.702 C169200200050 2.187 31.082 C169200200051 2.213 33.049 C169200200052 2.226 31.939 C169200200053 2.245 32.552 C169200200054 2.269 32.179 C169200200055 2.269 36.120 C169200200056 2.274 34.888 C169200200057 2.302 36.978 C169200200058 2.331 39.561 C169200200059 2.358 42.020 C169200200060 2.386 45.834 C169200200061 2.417 46.939 C169200200062 2.443 49.152 C169200200063 2.472 49.887 C169200200064 2.500 52.346 C169200200065 2.529 50.742 C169200200066 2.558 51.846 C169200200067 2.586 54.060 C169200200068 2.615 56.888 C169200200069 2.644 60.210 C169200200070 2.673 63.900 C169200200071 2.701 65.867 C169200200072 2.730 66.479 C169200200073 2.759 67.091 C169200200074 2.787 66.595 C169200200075 2.814 65.853 C169200200076 2.846 64.863 C169200200077 2.872 66.215 C169200200078 2.874 67.939 C169200200079 2.902 67.689 C169200200080 2.929 70.887 C169200200081 2.960 71.991 C169200200082 2.991 72.973 C169200200083 3.015 76.171 C169200200084 ENDDATA 76 0 C169200200085 ENDSUBENT 84 0 C169200299999 SUBENT C1692003 20171113 C171C169200300001 BIB 4 6 C169200300002 REACTION (6-C-14(D,G)7-N-16,,SIG,,REL) C169200300003 ERR-ANALYS (DATA-ERR) The large uncertainties reflect the C169200300004 difficulty of subtracting this weak activity from the C169200300005 intense C16 activity. C169200300006 DECAY-DATA (7-N-16,7.5SEC) Assumed half life. C169200300007 STATUS (CURVE) Fig. 8, page 1105. C169200300008 ENDBIB 6 0 C169200300009 NOCOMMON 0 0 C169200300010 DATA 3 8 C169200300011 EN DATA DATA-ERR C169200300012 MEV ARB-UNITS ARB-UNITS C169200300013 1.028 4.024 1.970 C169200300014 1.253 5.214 2.056 C169200300015 1.335 7.009 2.912 C169200300016 1.665 10.078 5.139 C169200300017 1.903 18.034 7.023 C169200300018 2.008 20.256 7.109 C169200300019 2.303 27.182 6.509 C169200300020 2.896 31.011 7.966 C169200300021 ENDDATA 10 0 C169200300022 ENDSUBENT 21 0 C169200399999 ENDENTRY 3 0 C169299999999