ENTRY            M0691   20060526
SUBENT        M0691001   20060526                                 
BIB                 15         35                                 
TITLE      Photoproton cross  section  for  26Mg  in  the  giant  
            dipole resonance region.                              
AUTHOR     (V.V.VARLAMOV,B.S.ISHKHANOV,I.M.KAPITONOV,             
            I.M.PISKAREV,V.G.SHEVCHENKO,O.P.SHEVCHENKO)           
REFERENCE  (J,NP/A,222,548,1974)                                  
INSTITUTE  (4RUSMOS)                                              
FACILITY   (BETAT,4RUSMOS)                                        
INC-SOURCE (BRST)                                                 
SAMPLE     Metallic foil 7.2 mg/cm**2 thick,  with area 28 cm**2  
            and the following isotopic composition:               
                    Isotope              Content (%)              
                      24Mg                  11.4                  
                      25Mg                   1.3                  
                      26Mg                  87.3                  
DETECTOR   (MWPC) Two  pure  gaseouss   C02   filled   multiwire  
            proportional chambers.                                
PART-DET   (P)                                                    
METHOD     (EXTB,SITA) Experimental  reaction  yield measurement  
            from 8 to 29 MeV with bin 0.1 MeV.                    
ANALYSIS   (UNFLD,PLA) The effective cross section was  obtained  
            from the  experimental  yield  by  the Penfold-Leiss  
            method of unfolding with an analysis bin 1  MeV.  Up  
            to 25  MeV  cross  section  was  calculated from the  
            yield curve on which the data point were spaced  200  
            keV apart and above 25 MeV - 500 keV.                 
ERR-ANALYS The mean-root-square errors.                           
STATUS     (APRVD) By V.V.Varlamov.                               
HISTORY    (20060524C) Data  presented on Fig 2 were compiled at  
            the MSU SINP CDFE by V.V.Varlamov.                    
COMMENT    Using bremsstrahlung  from  the  35  MeV betatron the  
            26Mg(g,xp) reaction cross section has been  obtained  
            in the excitation energy region up to  29  MeV.  The  
            data were used for discussion of the role of isospin  
            splitting in the  formation  of  26Mg  giant  dipole  
            resonance.                                            
ENDBIB              35                                            
NOCOMMON                                                          
ENDSUBENT           38