ENTRY            D0164   20040623
SUBENT        D0164001   20040623                                 
BIB                 13         41                                 
TITLE      Experimental studies and nuclear model calculations    
           on proton-induced reactions on natSe, 76Se and 77Se    
           with particular reference to the production of the     
           medically interesting radionuclides 76Br and 77Br      
AUTHOR     (H.E.Hassan, S.M.Qaim, Yu.Shubin, A.Azzam, M.Morsy,    
           H.H.Coenen)                                            
INSTITUTE  (2GERJUL,3EGYCAI)                                      
REFERENCE  (J,ARI,60,899,2004)                                    
FACILITY   (CYCLO,2GERJUL) Irradiations were performed using      
           the compact cyclotron CV 28 (5-20 MeV) and             
           The injector of COSY (20-45 MeV)                       
METHOD     (STTA) Each stack contained several properly prepared  
           selenium samples, is well as aluminium, titanium,      
           nickel and copper foils as absorbers and monitors.     
MONITOR    (29-CU-0(P,X)30-ZN-62,,SIG)                            
           (29-CU-0(P,X)30-ZN-63,,SIG)                            
           (29-CU-0(P,X)30-ZN-65,,SIG)                            
           (28-NI-0(P,X)28-NI-57,,SIG)                            
           (22-TI-0(P,X)23-V-48,,SIG)                             
MONIT-REF  (,Tarkanyi,R,IAEA-1211,2001)                           
SAMPLE     Very high-purity natural selenium and high-purity      
           Al,H, Ni and Cu foils (99.999%) were used. The         
           chemical purity of the enriched 76Se and 77Se          
           was >99%; the isotopic compositions are:               
                    enriched 76Se       enriched 77Se             
              74Se     0.14               0.054                   
              76Se    96.88               1.21                    
              77Se     0.85              91.77                    
              80Se     0.95               1.87                    
              78Se     0.99               4.68                    
              82Se     0.81               0.41                    
           The thickness of the selenium layer was 2-5 mg/cm2.    
           It was homogeneous and mechanically stable. It was     
           covered by a 5-20 mu-m thick and 16mm in dameter Al    
           foil. Thus each sample consisted of an                 
           Al-Se-Al sandwich.                                     
DETECTOR   (HPGE) HPGe detector of 145cm3 active volume.          
STATUS     (TABLE)Tables from the article                         
ERR-ANALYS (EN-ERR) Scale error                                   
           (ERR-T) Total error                                    
HISTORY    (20040623C) SD                                         
ENDBIB              41          0                                 
NOCOMMON             0          0                                 
ENDSUBENT           44          0