Muon radiative energy loss (in 1.0E06 cm^2/g) in boron carbide (B%4#C) with Z/A = 0.47059 (f12.0,4f12.4) E (GeV) b_brem b_pair b_nucl b_total 2. 0.2011 0.0862 0.4735 0.7608 5. 0.2728 0.2145 0.4996 0.9869 10. 0.3326 0.3275 0.4842 1.1445 20. 0.3960 0.4515 0.4618 1.3093 50. 0.4830 0.6253 0.4374 1.5457 100. 0.5490 0.7533 0.4256 1.7279 200. 0.6109 0.8643 0.4197 1.8950 500. 0.6847 0.9845 0.4188 2.0881 1000. 0.7325 1.0590 0.4258 2.2174 2000. 0.7723 1.1120 0.4374 2.3218 5000. 0.8122 1.1593 0.4590 2.4305 10000. 0.8335 1.1816 0.4807 2.4958 20000. 0.8484 1.1957 0.5061 2.5503 50000. 0.8613 1.2067 0.5461 2.6141 100000. 0.8668 1.2113 0.5805 2.6585