G3139001   20250527                                               
   G3139001   20250527                                               
         12         31                                               
 Measurement of yield ratios for the isomeric pair
           137m,gCe in the 141Pr(g,x)137m,gCe reactions with      
           bremsstrahlung end-point energies of 50-, 60-, and     
           70-MeV                                                 
 (V.D.Nguyen, T.L.Nguyen, T.X.Nguyen, D.K.Pham,
            T.H.Nguyen, G.N.Kim, K.Kim, S.G.Shin, Y.U.Kye,        
            M.H.Cho)                                              
 (3VN IPH,3VN NNR,3KORKNU,3KORPUE)
           (3VN VN) Duy Tan University, Hanoi                     
 (J,RPC,176,109016,2020)
 (LINAC,3KORPUE) Pohang Accelerator Laboratory (PAL)
 (BRST) Pulsed electron beam on thin tungsten target
             (Size 100 mm x 100 mm, thickness 0.1 mm)             
 Praseodymium foil (Pr)
            - Purity: 99.9%                                       
            - Thickness: 0.1 mm                                   
            - Size: 15 mm x 15 mm                                 
 (ACTIV,GSPEC) Irradiated for 1 hour
 (HPGE) Energy resolution of 1.8 keV for 1332.5 keV peak
            of 60Co and detection efficiency of 20% relative to a 
            3 inch x 3 inch in NaI(Tl) detector at 1332.5 keV     
 (ERR-T) Total uncertainty: 11-15%
           (ERR-S,3.,4.) Statistical error                  (3-4%)
           (ERR-1,3.,5.) Gamma-ray intensity                (3-5%)
           (ERR-2,4.,6.) Gamma-ray interference             (4-6%)
           (ERR-3,3.,4.) Photo peak area fitting            (3-4%)
           (ERR-4,6.,7.) Photon flux                        (6-7%)
           (ERR-5,5.,6.) Others                             (5-6%)
 (TABLE,,V.D.Nguyen+,J,RPC,176,109016,2020) Table 2
           (APRVD) Approved by G.N.Kim (2025-05-xx)               
 (20250527C) S.C.Yang
ENDBIB              31          0                                 
NOCOMMON
ENDSUBENT           34          0                                 
   G3139002   20250527                                               
          3          9                                               
 (59-Pr-141(G,X)58-CE-137-M/G,,SIG/RAT,,BRA)
 (58-CE-137-M,34.4HR,DG,254.29,0.111) 11/2-
           (58-CE-137-G,9.0HR,DG,447.15,0.0168) 3/2+              
1Activity of the 137mCe was determined by subtraction of
            the activity contribution of 255.11 keV gamma from    
            139Pr Activity contribution by using the peak to peak 
            ratio relationship.                                   
          2Activity was considered based on the different         
            half-lived relationship between the 139Pr and 137mCe. 
ENDBIB               9          0                                 
NOCOMMON
EN-MAX      DATA      1 ERR-T     1 DATA      2 ERR-T     2 
MEV         NO-DIM      NO-DIM      NO-DIM      NO-DIM      
50.         0.95        0.14        0.96        0.15        
60.         1.42        0.18        1.39        0.17        
70.         1.78        0.22        1.79        0.20        
ENDDATA
ENDSUBENT           19          0                                 
ENDENTRY