Muon radiative energy loss (in 1.0E06 cm^2/g) in C-552 air-equivalent plastic with Z/A = 0.49969 (f12.0,4f12.4) E (GeV) b_brem b_pair b_nucl b_total 2. 0.2801 0.1241 0.4640 0.8684 5. 0.3799 0.3055 0.4911 1.1765 10. 0.4622 0.4596 0.4768 1.3986 20. 0.5486 0.6274 0.4552 1.6313 50. 0.6659 0.8637 0.4316 1.9613 100. 0.7534 1.0307 0.4201 2.2043 200. 0.8359 1.1844 0.4143 2.4346 500. 0.9334 1.3416 0.4135 2.6885 1000. 0.9958 1.4377 0.4203 2.8538 2000. 1.0474 1.5048 0.4316 2.9838 5000. 1.0987 1.5641 0.4525 3.1153 10000. 1.1258 1.5920 0.4737 3.1915 20000. 1.1447 1.6097 0.4985 3.2530 50000. 1.1610 1.6237 0.5373 3.3220 100000. 1.1683 1.6295 0.5707 3.3685