ENTRY            C2725   20220301                             C214C272500000001 
SUBENT        C2725001   20220301                             C214C272500100001 
BIB                 10         25                                 C272500100002 
TITLE      Search for 263Rf                                       C272500100003 
AUTHOR     (K.R.Czerwinski,K.E.Gregorich,T.M.Hamilton,            C272500100004 
           N.J.Hannink, C.D.Kacher,B.A.Kadkhodayan,S.A.Kreck,     C272500100005 
           M.R.Lane,D.M.Lee, M.J.Nurmia,A.Turler,D.C.Hoffman)     C272500100006 
REFERENCE  (R,LBL-31855,54,1992)                                  C272500100007 
INSTITUTE  (1USABRK)                                              C272500100008 
FACILITY   (ACCEL,1USABRK)                                        C272500100009 
METHOD     (CHSEP) The Rf was separated from the actinides using  C272500100010 
           liquid-liquid extractions. The organic phase was 0.5 M C272500100011 
           thenoyltrifluoroacetone (TFA) in benzene and the       C272500100012 
           aqueous phase was 0.05 M HCl. The collection time for  C272500100013 
           each experiment was 3 minutes.                         C272500100014 
ANALYSIS   The cross section for the 248Cm(180,3n) reaction was   C272500100015 
           calculated using a modified SPIT code. The peak of     C272500100016 
           the excitation function is at 92.5 MeV with a cross    C272500100017 
           section estimate of 300 pb. From the cross section     C272500100018 
           estimate, the 263Rf production rate is about 2         C272500100019 
           atoms per hour. Folding in the gas jet transport       C272500100020 
           yield, chemical yield and detector efficiencies, the   C272500100021 
           detection rate would be 1.3 events per hour for SF     C272500100022 
           and 0.7 events per hour for alpha decay.               C272500100023 
ERR-ANALYS (DATA-ERR) No details on sources of uncertainties.     C272500100024 
DECAY-DATA (104-RF-263,500.0SEC,SF) Measured by authors as (500   C272500100025 
           +300/-200 sec).                                        C272500100026 
HISTORY    (20220301C) BP                                         C272500100027 
ENDBIB              25          0                                 C272500100028 
NOCOMMON             0          0                                 C272500100029 
ENDSUBENT           28          0                                 C272500199999 
SUBENT        C2725002   20220301                             C214C272500200001 
BIB                  2          2                                 C272500200002 
REACTION   (96-CM-248(8-O-18,3N)104-RF-263,,SIG)                  C272500200003 
STATUS     (TABLE) page 54.                                       C272500200004 
ENDBIB               2          0                                 C272500200005 
NOCOMMON             0          0                                 C272500200006 
DATA                 3          1                                 C272500200007 
EN         DATA       DATA-ERR                                    C272500200008 
MEV        PB         PB                                          C272500200009 
       92.0      140.0       50.0                                 C272500200010 
ENDDATA              3          0                                 C272500200011 
ENDSUBENT           10          0                                 C272500299999 
ENDENTRY             2          0                                 C272599999999