ENTRY            C2298   20241031                             C243C229800000001 
SUBENT        C2298001   20241031                             C243C229800100001 
BIB                  9         21                                 C229800100002 
TITLE      New Isotope Einsteinium-248                            C229800100003 
AUTHOR     (A.Chetham-Strode,L.W.Holm)                            C229800100004 
REFERENCE  (J,PR,104,1314,1956)                                   C229800100005 
           #doi:10.1103/PhysRev.104.1314                          C229800100006 
INSTITUTE  (1USABRK,1USAUCX)                                      C229800100007 
FACILITY   (CYCLO,1USABRK) 60-inch cyclotron of the Crocker       C229800100008 
           Laboratory.                                            C229800100009 
SAMPLE     The target used for this work contained about 10**13   C229800100010 
           atoms of monoisotopic Cf249 in addition to about       C229800100011 
           2x10**13 atoms of its parent Bk249.                    C229800100012 
METHOD     (CHSEP,REC,ACTIV) Immediately after bombardment, the   C229800100013 
           californium and einsteinium reaction products were     C229800100014 
           separated by ion-exchange methods and                  C229800100015 
           electrodeposited on platinum foil for examination by   C229800100016 
           alpha pulse-height analysis.                           C229800100017 
ANALYSIS   The approximate cross sections were calculated from    C229800100018 
           the observed alpha-disintegration rates and branching  C229800100019 
           ratios, assuming recoil collection yields of 100% in   C229800100020 
           the bombardments.                                      C229800100021 
HISTORY    (20180511C) BP                                         C229800100022 
           (20241028A) OS. DECAY-DATA corrected                   C229800100023 
ENDBIB              21          0                                 C229800100024 
NOCOMMON             0          0                                 C229800100025 
ENDSUBENT           24          0                                 C229800199999 
SUBENT        C2298002   20241031                             C243C229800200001 
BIB                  4          4                                 C229800200002 
REACTION   (98-CF-249(D,2N)99-ES-249,,SIG)                        C229800200003 
DECAY-DATA (99-ES-249,2.0HR,A,6760.)                              C229800200004 
STATUS     (CURVE,,A.Chetham-Strode+,J,PR,104,1314,1956) Fig.1.   C229800200005 
HISTORY    (20241028A) DECAY-DATA: Energy corrected               C229800200006 
ENDBIB               4          0                                 C229800200007 
NOCOMMON             0          0                                 C229800200008 
DATA                 2          5                                 C229800200009 
EN         DATA                                                   C229800200010 
MEV        MB                                                     C229800200011 
     15.773  6.091E+01                                            C229800200012 
     17.730  3.889E+01                                            C229800200013 
     17.775  4.248E+01                                            C229800200014 
     22.025  4.159E+01                                            C229800200015 
     22.026  3.513E+01                                            C229800200016 
ENDDATA              7          0                                 C229800200017 
ENDSUBENT           16          0                                 C229800299999 
SUBENT        C2298003   20241031                             C243C229800300001 
BIB                  4          4                                 C229800300002 
REACTION   (98-CF-249(D,3N)99-ES-248,,SIG)                        C229800300003 
DECAY-DATA (99-ES-248,25.0MIN,A,6870.)                            C229800300004 
HISTORY    (20241028A) DECAY-DATA: Energy corrected               C229800300005 
STATUS     (CURVE,,A.Chetham-Strode+,J,PR,104,1314,1956) Fig.1.   C229800300006 
ENDBIB               4          0                                 C229800300007 
NOCOMMON             0          0                                 C229800300008 
DATA                 2          5                                 C229800300009 
EN         DATA                                                   C229800300010 
MEV        MB                                                     C229800300011 
     15.792  1.953E+00                                            C229800300012 
     17.811  3.905E+00                                            C229800300013 
     17.832  5.173E+00                                            C229800300014 
     21.990  6.873E+00                                            C229800300015 
     22.014  5.488E+00                                            C229800300016 
ENDDATA              7          0                                 C229800300017 
ENDSUBENT           16          0                                 C229800399999 
ENDENTRY             3          0                                 C229899999999