ENTRY            12576   20180608                             14421257600000001 
SUBENT        12576001   20180608                             14421257600100001 
BIB                 10         23                                 1257600100002 
TITLE      Capture Cross-Section of Americium-241 for Pile        1257600100003 
           Neutrons                                               1257600100004 
AUTHOR     (G.T.Seaborg,W.M.Manning)                              1257600100005 
REFERENCE  (R,CS-3471,4,1946)                                     1257600100006 
INSTITUTE  (1USAANL)                                              1257600100007 
FACILITY   (REAC,1USAORL) U-graphite reactor, X-10.               1257600100008 
INC-SPECT  Reactor spectrum.                                      1257600100009 
SAMPLE     1.7 microg sample of 241Am.                            1257600100010 
PART-DET   (A)                                                    1257600100011 
METHOD     (ACTIV) Americium sample was bombarded for five weeks  1257600100012 
           in the Clinton pile. After bombardment the alpha       1257600100013 
           activity of the sample was observed to consist of      1257600100014 
           40.3% at 4.1 cm range of 241Am and 59.7% at the 4.7    1257600100015 
           cm range of 242Cm [formed as a result of the reaction  1257600100016 
           241Am(n,gamma)242Am(beta-)242Cm].                      1257600100017 
HISTORY    (19760804T) Translated from SCISRS.                    1257600100018 
           (19841004A) Converted to reaction formalism.           1257600100019 
           (20180608A) BP: Updated to new date formats,lower      1257600100020 
           case. Corrections according last EXFOR rules and       1257600100021 
           Dict. and CP-D/841 Rev.=WP2014-45, clarified the       1257600100022 
           situation with the cross section recalculation and     1257600100023 
           added present day half lives and branching ratios for  1257600100024 
           comparison.                                            1257600100025 
ENDBIB              23          0                                 1257600100026 
NOCOMMON             0          0                                 1257600100027 
ENDSUBENT           26          0                                 1257600199999 
SUBENT        12576002   20180608                             14421257600200001 
BIB                  5          8                                 1257600200002 
REACTION   (95-AM-241(N,G)95-AM-242-G,,SIG,,SPA)                  1257600200003 
ERR-ANALYS (DATA-ERR) No details on sources of uncertainties.     1257600200004 
DECAY-DATA (95-AM-241,490.YR)                                     1257600200005 
           (95-AM-242-G,18.HR,B-,,1.0)                            1257600200006 
           (96-CM-242,0.4YR)                                      1257600200007 
CORRECTION Corrected for 242Cm decay during the bombardment.      1257600200008 
STATUS     (OUTDT,12576003)                                       1257600200009 
           (TABLE) page 4.                                        1257600200010 
ENDBIB               8          0                                 1257600200011 
NOCOMMON             0          0                                 1257600200012 
DATA                 3          1                                 1257600200013 
EN-DUMMY   DATA       DATA-ERR                                    1257600200014 
MEV        B          PER-CENT                                    1257600200015 
   2.53E-08   5.60E+02        15.                                 1257600200016 
ENDDATA              3          0                                 1257600200017 
ENDSUBENT           16          0                                 1257600299999 
SUBENT        12576003   20180608                             14421257600300001 
BIB                  5         15                                 1257600300002 
REACTION   (95-AM-241(N,G)95-AM-242-G,,SIG,,SPA)                  1257600300003 
STATUS     (DEP,12576002)                                         1257600300004 
           (RNORM,12576002)                                       1257600300005 
COMMENT    Cross section was recalculated by NNCSC using 1970s    1257600300006 
           values for the half lives and branching ratios: 84%    1257600300007 
           for 16hr Am242 beta branch to Cm242. Assumed Am241     1257600300008 
           T1/2= 459yr and Cm242 T1/2=163d.                       1257600300009 
           Compiler's comment: The 2018 values for 242Am          1257600300010 
           T1/2=16.02 h, 241Am T1/2=432.6 y, and 242Cm T1/2=162.8 1257600300011 
           days. Beta decay branching ratio of 242Am to 242Cm is  1257600300012 
           82.7%.                                                 1257600300013 
DECAY-DATA (95-AM-241,459.YR)                                     1257600300014 
           (95-AM-242-G,16.HR,B-,,1.0)                            1257600300015 
           (96-CM-242,0163.D)                                     1257600300016 
HISTORY    (20180608A) BP: Clarified cross section recalculation. 1257600300017 
ENDBIB              15          0                                 1257600300018 
NOCOMMON             0          0                                 1257600300019 
DATA                 2          1                                 1257600300020 
EN-DUMMY   DATA                                                   1257600300021 
MEV        B                                                      1257600300022 
   2.53E-08   8.00E+02                                            1257600300023 
ENDDATA              3          0                                 1257600300024 
ENDSUBENT           23          0                                 1257600399999 
ENDENTRY             3          0                                 1257699999999