ENTRY C1077 20160810 C163C107700000001 SUBENT C1077001 20160810 C163C107700100001 BIB 11 23 C107700100002 TITLE Mass of Ca39 C107700100003 AUTHOR (K.W.Kemper,C.M.McKenna,J.W.Nelson) C107700100004 REFERENCE (J,PR/C,2,213,1970) C107700100005 #doi:10.1103/PhysRevC.2.213 C107700100006 REL-REF (M,,D.T.Birch+,J,NIM,35,293,1965) C107700100007 INSTITUTE (1USAFSU) C107700100008 FACILITY (VDGT,1USAFSU) Florida State University Tandem Van de C107700100009 Graaff. C107700100010 SAMPLE KI target of thickness 20 keV at 8-MeV bombarding C107700100011 energy. Both thin evaporated, tantalum-backed and C107700100012 infinitely thick pressed targets of KI of natural C107700100013 isotopic abundance were used. C107700100014 DETECTOR (SCIN) NE102 plastic scintillator. C107700100015 METHOD (ACTIV) Excitation functions were measured by C107700100016 detecting the induced positron activity following a C107700100017 bombardment, rather than the outgoing neutrons during C107700100018 bombardment. The absolute cross section was C107700100019 determined by measuring the positron energy spectrum C107700100020 in a well counter made of plastic scintillator. 39Ca C107700100021 activity was identified from its half-life of 0.877 C107700100022 sec. C107700100023 DECAY-DATA (20-CA-39,0.877SEC,B+) C107700100024 HISTORY (20160810C) BP C107700100025 ENDBIB 23 0 C107700100026 NOCOMMON 0 0 C107700100027 ENDSUBENT 26 0 C107700199999 SUBENT C1077002 20160810 C163C107700200001 BIB 3 7 C107700200002 REACTION (19-K-39(P,N)20-CA-39,,SIG) C107700200003 ERR-ANALYS (DATA-ERR) The error in the absolute value of the crossC107700200004 section is estimated to be +-8% and arises from C107700200005 uncertainty in the target thickness. The errors due C107700200006 to counting statistics are equal to or less than the C107700200007 size of the data points. C107700200008 STATUS (CURVE) Fig.1, page 214. C107700200009 ENDBIB 7 0 C107700200010 COMMON 1 3 C107700200011 DATA-ERR C107700200012 PER-CENT C107700200013 8.0 C107700200014 ENDCOMMON 3 0 C107700200015 DATA 2 51 C107700200016 EN DATA C107700200017 MEV MB C107700200018 7.527 0.567 C107700200019 7.596 1.798 C107700200020 7.613 2.338 C107700200021 7.663 4.007 C107700200022 7.692 4.745 C107700200023 7.725 5.874 C107700200024 7.765 7.200 C107700200025 7.804 8.378 C107700200026 7.860 10.048 C107700200027 7.893 11.912 C107700200028 7.951 12.554 C107700200029 8.000 15.104 C107700200030 8.098 16.241 C107700200031 8.170 15.906 C107700200032 8.242 14.739 C107700200033 8.330 15.140 C107700200034 8.408 14.365 C107700200035 8.484 14.667 C107700200036 8.577 16.097 C107700200037 8.740 17.338 C107700200038 8.850 18.867 C107700200039 8.914 19.461 C107700200040 9.016 18.102 C107700200041 9.093 18.110 C107700200042 9.184 20.126 C107700200043 9.263 18.422 C107700200044 9.311 17.840 C107700200045 9.363 18.971 C107700200046 9.439 18.980 C107700200047 9.445 19.469 C107700200048 9.510 19.330 C107700200049 9.679 20.229 C107700200050 9.783 21.659 C107700200051 9.861 21.130 C107700200052 9.930 22.409 C107700200053 10.006 22.858 C107700200054 10.010 23.740 C107700200055 10.076 22.915 C107700200056 10.106 22.624 C107700200057 10.175 23.904 C107700200058 10.192 24.151 C107700200059 10.211 23.712 C107700200060 10.245 24.450 C107700200061 10.268 25.089 C107700200062 10.340 24.167 C107700200063 10.375 24.366 C107700200064 10.398 24.760 C107700200065 10.439 24.765 C107700200066 10.462 25.354 C107700200067 10.491 25.749 C107700200068 10.526 25.998 C107700200069 ENDDATA 53 0 C107700200070 ENDSUBENT 69 0 C107700299999 ENDENTRY 2 0 C107799999999