Muon radiative energy loss (in 1.0E06 cm^2/g) in boron (B) with Z = 5, A = 10.811(7) (f12.0,4f12.4) E (GeV) b_brem b_pair b_nucl b_total 2. 0.1897 0.0810 0.4744 0.7451 5. 0.2574 0.2020 0.5003 0.9597 10. 0.3141 0.3092 0.4848 1.1082 20. 0.3742 0.4269 0.4623 1.2634 50. 0.4568 0.5918 0.4378 1.4865 100. 0.5196 0.7147 0.4260 1.6603 200. 0.5787 0.8190 0.4201 1.8179 500. 0.6490 0.9337 0.4192 2.0019 1000. 0.6946 1.0049 0.4263 2.1258 2000. 0.7327 1.0557 0.4379 2.2263 5000. 0.7709 1.1011 0.4595 2.3315 10000. 0.7913 1.1225 0.4813 2.3951 20000. 0.8056 1.1361 0.5068 2.4485 50000. 0.8180 1.1466 0.5469 2.5115 100000. 0.8233 1.1510 0.5813 2.5556