ENTRY C0937 20170626 C167C093700000001 SUBENT C0937001 20170626 C167C093700100001 BIB 9 32 C093700100002 TITLE Decay properties of heavy mendelevium isotopes C093700100003 AUTHOR (K.J.Moody,R.W.Lougheed,J.F.Wild,R.J.Dougan,E.K.Hulet, C093700100004 R.W.Hoff,C.M.Henderson,R.J.Dupzyk,R.L.Hahn,K.Summerer, C093700100005 G.D.O'Kelley,G.R.Bethune) C093700100006 REFERENCE (J,NP/A,563,21,1993) C093700100007 #doi:10.1016/0375-9474(93)90010-U C093700100008 REL-REF (O,A0358001,M.Schadel+,J,PR/C,33,1547,1986) Related C093700100009 mendelevium data. C093700100010 (O,14283001,K.J.Moody+,J,NP/A,563,21,1993) Fission C093700100011 yields data. C093700100012 INSTITUTE (1USALRL,2GERGSI,1USAORL) C093700100013 (1USAUSA) Bethune-Cookman College, Daytona Beach,FL,USAC093700100014 FACILITY (CYCLO,1USABRK) The Lawrence Berkeley Laboratory 88- C093700100015 inch cyclotron. C093700100016 METHOD (EXTB,REC,FPGAM) We bombarded targets containing C093700100017 approximately 10**17 atoms/cm2 of 254Esg with 180 and C093700100018 22Ne ions at the Lawrence Berkeley Laboratory 88-inch C093700100019 cyclotron. We counted a single mass-256 fraction for C093700100020 gamma rays. Reaction products recoiled from the C093700100021 target and passed through a 50 microg/cm2 aluminum C093700100022 cover foil and approximately 1 cm of 10 torr helium C093700100023 cooling gas before they were collected with 3.6 C093700100024 mg/cm2 tantalum or 4.6 mg/cm2 molybdenum foils. The C093700100025 start of the first data accumulation was 110 min C093700100026 after the end of the 180 irradiation. The decay of C093700100027 the sample was followed for 30 h. We observed not C093700100028 only gamma-ray peaks associated with the decay of C093700100029 256Esm, but also many gamma rays emitted by the 256Fm C093700100030 SF fragments. C093700100031 DETECTOR (SIBAR,IOCH) for alpha and SF counting C093700100032 (GE) for gamma counting C093700100033 HISTORY (20170626C) BP C093700100034 ENDBIB 32 0 C093700100035 NOCOMMON 0 0 C093700100036 ENDSUBENT 35 0 C093700199999 SUBENT C0937002 20170626 C167C093700200001 BIB 2 2 C093700200002 REACTION (99-ES-254(8-O-18,X)ELEM/MASS,,SIG) C093700200003 STATUS (TABLE) Table 1, page 22. C093700200004 ENDBIB 2 0 C093700200005 COMMON 1 3 C093700200006 EN C093700200007 MEV C093700200008 105.0 C093700200009 ENDCOMMON 3 0 C093700200010 DATA 4 6 C093700200011 ELEMENT MASS ISOMER DATA C093700200012 NO-DIM NO-DIM NO-DIM MB C093700200013 101.0 256.0 0.58 C093700200014 101.0 257.0 0.45 C093700200015 101.0 258.0 0. 0.13 C093700200016 101.0 258.0 1. 0.036 C093700200017 101.0 259.0 0.0050 C093700200018 101.0 260.0 0.00039 C093700200019 ENDDATA 8 0 C093700200020 ENDSUBENT 19 0 C093700299999 SUBENT C0937003 20170626 C167C093700300001 BIB 2 2 C093700300002 REACTION (99-ES-254(10-NE-22,X)ELEM/MASS,,SIG) C093700300003 STATUS (TABLE) Table 1, page 22. C093700300004 ENDBIB 2 0 C093700300005 COMMON 1 3 C093700300006 EN C093700300007 MEV C093700300008 126.0 C093700300009 ENDCOMMON 3 0 C093700300010 DATA 4 7 C093700300011 ELEMENT MASS ISOMER DATA C093700300012 NO-DIM NO-DIM NO-DIM MB C093700300013 101.0 255.0 0.65 C093700300014 101.0 256.0 1.6 C093700300015 101.0 257.0 0.64 C093700300016 101.0 258.0 0. 0.15 C093700300017 101.0 258.0 1. 0.037 C093700300018 101.0 259.0 0.0047 C093700300019 101.0 260.0 0.00028 C093700300020 ENDDATA 9 0 C093700300021 ENDSUBENT 20 0 C093700399999 ENDENTRY 3 0 C093799999999