Muon radiative energy loss (in 1.0E06 cm^2/g) in Tissue-equivalent gas (Methane based) with Z/A = 0.54993 (f12.0,4f12.4) E (GeV) b_brem b_pair b_nucl b_total 2. 0.2587 0.1125 0.4738 0.8450 5. 0.3510 0.2787 0.5012 1.1309 10. 0.4276 0.4232 0.4859 1.3367 20. 0.5086 0.5806 0.4632 1.5525 50. 0.6192 0.8020 0.4385 1.8598 100. 0.7022 0.9589 0.4264 2.0874 200. 0.7807 1.1037 0.4202 2.3046 500. 0.8741 1.2535 0.4192 2.5468 1000. 0.9342 1.3456 0.4259 2.7057 2000. 0.9842 1.4106 0.4374 2.8322 5000. 1.0344 1.4682 0.4588 2.9614 10000. 1.0613 1.4953 0.4805 3.0371 20000. 1.0803 1.5125 0.5060 3.0988 50000. 1.0968 1.5260 0.5460 3.1687 100000. 1.1044 1.5315 0.5803 3.2162