ENTRY            D4054   20060730
SUBENT        D4054001   20060731                                 
BIB                 12         49                                 
TITLE      Activation cross sections for deuteron-induced         
           reactions on some elements of the first transition     
           series, up to 5.5 MeV                                  
AUTHOR     (P.P.Coetzee, M.Peisach)                               
INSTITUTE  (3SAFSUN)                                              
REFERENCE  (J,RCA,17,1,1972)                                      
FACILITY   (VDG) Van de Graaff of Southern Univ. Nucl. Inst.      
                        Faure,  South Africa                      
SAMPLE     targets of natural composition were electroplated on   
           tantalum backing 0.4-1.0 mg/cm2 thick. Enriched targets
           were prepared when was neccessary.                     
           the uniformity of the targets was checked by           
           autoradiography after irradiation of the targets.      
METHOD     (ACTIV,EDEG,GSPEC)                                     
           5.5 MeV deuteron beams (0.5 And 1.2 Micro-a)           
           were used for irradiation. Targets were placed on A    
           rotating sample holder cooled by compressed air.       
           aluminum foils were used to reduce the primary deuteron
           energy. The energy degradation was calculated according
           to C.F. Williamson et al. CEA-R-3042 1966.             
           all the irradiations were performed for the same       
           amount of charge to Be able to build up a relative     
           cross section curve. A single sample was irradiated in 
           faraday cup for absolute determination of the cross    
           section to which point the cross section curve was     
           normalised.                                            
           NaI(Tl) scintillation and Ge(Li) detectors were used   
           for gamma activity measurements.                       
DETECTOR   (NAICR)                                                
           (GELI)                                                 
ANALYSIS   (AREA)                                                 
ERR-ANALYS (DATA-ERR) the reletive precision of the peak area     
           was less than 0.5% When high activities were measured, 
           but reached up to 20% in the case of low activities.   
           the detector efficiency was less than 3%.              
           the relative error of the target thickness was 2.5%.   
           the error of the beam current measured in faraday-cup  
           was 1.5%.                                              
           every cross section was considered as a separate       
           determination and each error value is the root mean    
           square error calculated from all the relevant          
           experimental conditions pertaining to the measurement. 
           the uncertainty in the energy of the primary deuteron  
           beam was +- 2.0 Kev                                    
STATUS     (TABLE) data were taken from table 1. - 5. of          
           Radiochimica Acta, vol. 17., pp. 1-6., 1972.           
HISTORY    (19961114C)                                            
           (19961129U)                                            
           (20060730A) BIB section upgrated                       
ENDBIB              49          0                                 
NOCOMMON             0          0                                 
ENDSUBENT           52          0