Muon radiative energy loss (in 1.0E06 cm^2/g)
   in potassium (K)
   with Z =  19, A = 39.0983(1)
   (f12.0,4f12.4)
     E (GeV)      b_brem      b_pair      b_nucl     b_total
          2.      0.6576      0.3103      0.4250      1.3930
          5.      0.8952      0.7625      0.4531      2.1107
         10.      1.0880      1.1213      0.4423      2.6516
         20.      1.2871      1.4974      0.4243      3.2088
         50.      1.5509      2.0347      0.4044      3.9900
        100.      1.7420      2.4051      0.3947      4.5418
        200.      1.9205      2.7460      0.3899      5.0564
        500.      2.1271      3.0721      0.3895      5.5887
       1000.      2.2560      3.2514      0.3957      5.9031
       2000.      2.3597      3.3837      0.4059      6.1493
       5000.      2.4596      3.4961      0.4246      6.3803
      10000.      2.5110      3.5489      0.4434      6.5033
      20000.      2.5473      3.5824      0.4653      6.5950
      50000.      2.5755      3.6095      0.4996      6.6846
     100000.      2.5892      3.6206      0.5289      6.7386