ENTRY            M0271   20081110                             M047M027100000001 
SUBENT        M0271001   20081110                             M047M027100100001 
BIB                 11         34                                 M027100100002 
TITLE      Absolute cross section of the reaction                 M027100100003 
            63Cu(gamma,n)62Cu for Lithium gamma rays.             M027100100004 
AUTHOR     (S.YASUMI,M.YATA,K.TAKAMATSU,A.MASAIKE,Y.MASUDA)       M027100100005 
INSTITUTE  (2JPNKTO)                                              M027100100006 
REFERENCE  (J,JPJ,15,1913,1960)                                   M027100100007 
METHOD     (EXTB,SITA)                                            M027100100008 
DETECTOR   (BF3)                                                  M027100100009 
INC-SOURCE (MPH=(3-LI-0(P,G)))                                    M027100100010 
ERR-ANALYS (ERR-S) Statistical errors are presented.              M027100100011 
COMMENT    The cross section of the reaction Cu-63(g,n)Cu-62 for  M027100100012 
            Li gamma rays was measured in order to discover some  M027100100013 
            causes of the existing discrepancy between values     M027100100014 
            measured by bremsstrahlungs and by nuclear gamma rays M027100100015 
            Experimental procedures used in this experiment were  M027100100016 
            much improved as compared with those used in previous M027100100017 
            measurements performed in laboratory for the same     M027100100018 
            purpose.                                              M027100100019 
           The present results were as follows:                   M027100100020 
              sigma(Li-g)=62(4) mb (for Li gamma rays), and       M027100100021 
              sigma(eg=17.6)=76(5)  b for 17.6 MeV gamma-rays.    M027100100022 
           This value is about 30% lower than the average cross   M027100100023 
            section value determined by photon difference method  M027100100024 
            in several bremsstrahlung' experiments.               M027100100025 
           Therefore, we suggest that the modified spectrum metho M027100100026 
            proposed by penfold and leiss might eliminate not onl M027100100027 
            the above-mentioned discrepancy but also the          M027100100028 
            discrepancy between theoretical and experimental      M027100100029 
            values in the form  sig**(-2), as pointed out by      M027100100030 
            Levinger.                                             M027100100031 
STATUS     (CURVE)                                                M027100100032 
HISTORY    (19880704C)                                            M027100100033 
           (19910202A) CORRECTED BY V.VARLAMOV, V.MCLANE          M027100100034 
           (20081110A) Corrected   by   V.Varlamov:   REFERENCE,  M027100100035 
            REACTION, lowercase.                                  M027100100036 
ENDBIB              34          0                                 M027100100037 
NOCOMMON             0          0                                 M027100100038 
ENDSUBENT           37          0                                 M027100199999 
SUBENT        M0271002   20081110                             M047M027100200001 
BIB                  1          1                                 M027100200002 
REACTION   (29-CU-63(G,N)29-CU-62,,SIG)                           M027100200003 
ENDBIB               1          0                                 M027100200004 
NOCOMMON             0          0                                 M027100200005 
DATA                 4          1                                 M027100200006 
EN-MIN     EN-MAX     DATA       ERR-S                            M027100200007 
MEV        MEV        MB         MB                               M027100200008 
    14.8       17.6    62.0       4.0                             M027100200009 
ENDDATA              3          0                                 M027100200010 
ENDSUBENT            9          0                                 M027100299999 
SUBENT        M0271003   20081110                             M047M027100300001 
BIB                  1          1                                 M027100300002 
REACTION   (29-CU-63(G,N)29-CU-62,,SIG)                           M027100300003 
ENDBIB               1          0                                 M027100300004 
NOCOMMON             0          0                                 M027100300005 
DATA                 3          1                                 M027100300006 
EN         DATA       ERR-S                                       M027100300007 
MEV        MB         MB                                          M027100300008 
 17.6         76.0       5.0                                      M027100300009 
ENDDATA              3          0                                 M027100300010 
ENDSUBENT            9          0                                 M027100399999 
ENDENTRY             3          0                                 M027199999999