ENTRY            M0271   20240329                             M130M0271  0    1 
SUBENT        M0271001   20240329                             M130M0271  1    1 
BIB                 11         37                                 M0271  1    2 
TITLE      Absolute cross section of the reaction                 M0271  1    3 
            63Cu(gamma,n)62Cu for Lithium gamma rays.             M0271  1    4 
AUTHOR     (S.Yasumi,M.Yata,K.Takamatsu,A.Masaike,Y.Masuda)       M0271  1    5 
INSTITUTE  (2JPNKTO,2JPNOSP)                                      M0271  1    6 
FACILITY   (CCW)                                                  M0271  1    7 
REFERENCE  (J,JPJ,15,1913,1960)                                   M0271  1    8 
METHOD     (EXTB,SITA)                                            M0271  1    9 
DETECTOR   (BF3)                                                  M0271  1   10 
INC-SOURCE (MPH=(3-LI-7(P,G)4-BE-8))                              M0271  1   11 
ERR-ANALYS (ERR-S) Statistical errors are presented.              M0271  1   12 
COMMENT    The cross section of the reaction Cu-63(g,n)Cu-62 for  M0271  1   13 
            Li gamma rays was measured in order to discover some  M0271  1   14 
            causes of the existing discrepancy between values     M0271  1   15 
            measured by bremsstrahlung and by nuclear gamma       M0271  1   16 
            rays.                                                 M0271  1   17 
            Experimental procedures used in this experiment were  M0271  1   18 
            much improved as compared with those used in previous M0271  1   19 
            measurements performed in laboratory for the same     M0271  1   20 
            purpose.                                              M0271  1   21 
           The present results were as follows:                   M0271  1   22 
              sigma(Li-g)=62(4) mb (for Li gamma rays), and       M0271  1   23 
              sigma(Eg=17.6)=76(5) mb for 17.6 MeV gamma-rays.    M0271  1   24 
           This value is about 30% lower than the average cross   M0271  1   25 
            section value determined by photon difference method  M0271  1   26 
            in several bremsstrahlung experiments.                M0271  1   27 
           Therefore, we suggest that the modified spectrum       M0271  1   28 
            method proposed by Penfold and Leiss might eliminate  M0271  1   29 
            not only the above-mentioned discrepancy but also the M0271  1   30 
            discrepancy between theoretical and experimental      M0271  1   31 
            values in the form  sig**(-2), as pointed out by      M0271  1   32 
            Levinger.                                             M0271  1   33 
HISTORY    (19880704C)                                            M0271  1   34 
           (19910202A) Corrected by V.Varlamov, V.McLane.         M0271  1   35 
           (20081110A) Corrected   by   V.Varlamov:   REFERENCE,  M0271  1   36 
            FACILITY, REACTION, lowercase.                        M0271  1   37 
           (20240329U) Corrected by V.Varlamov: lowercase,        M0271  1   38 
            INC-SOURCE, COMMENT, STATUS.                          M0271  1   39 
ENDBIB              37          0                                 M0271  1   40 
NOCOMMON             0          0                                 M0271  1   41 
ENDSUBENT           40          0                                 M0271  199999 
SUBENT        M0271002   20240329                             M130M0271  2    1 
BIB                  3          4                                 M0271  2    2 
REACTION   (29-CU-63(G,N)29-CU-62,,SIG)                           M0271  2    3 
STATUS     (TABLE,,S.Yasumi+,J,JPJ,15,1913,1960)                  M0271  2    4 
            Data from pages 1913 and 1918.                        M0271  2    5 
HISTORY    (20240329U) Corrected by V.Varlamov: STATUS.           M0271  2    6 
ENDBIB               4          0                                 M0271  2    7 
NOCOMMON             0          0                                 M0271  2    8 
DATA                 4          1                                 M0271  2    9 
EN-MIN     EN-MAX     DATA       ERR-S                            M0271  2   10 
MEV        MEV        MB         MB                               M0271  2   11 
    14.8       17.6    62.0       4.0                             M0271  2   12 
ENDDATA              3          0                                 M0271  2   13 
ENDSUBENT           12          0                                 M0271  299999 
SUBENT        M0271003   20240329                             M130M0271  3    1 
BIB                  3          4                                 M0271  3    2 
REACTION   (29-CU-63(G,N)29-CU-62,,SIG)                           M0271  3    3 
STATUS     (TABLE,,S.Yasumi+,J,JPJ,15,1913,1960)                  M0271  3    4 
            Data from pages 1913 and 1918.                        M0271  3    5 
HISTORY    (20240329U) Corrected by V.Varlamov: STATUS.           M0271  3    6 
ENDBIB               4          0                                 M0271  3    7 
NOCOMMON             0          0                                 M0271  3    8 
DATA                 3          1                                 M0271  3    9 
EN         DATA       ERR-S                                       M0271  3   10 
MEV        MB         MB                                          M0271  3   11 
 17.6         76.0       5.0                                      M0271  3   12 
ENDDATA              3          0                                 M0271  3   13 
ENDSUBENT           12          0                                 M0271  399999 
ENDENTRY             3          0                                 M027199999999