Muon radiative energy loss (in 1.0E06 cm^2/g) in dubnium (Db) with Z = 105, A = [268.12567(4)] (f12.0,4f12.4) E (GeV) b_brem b_pair b_nucl b_total 2. 2.3962 0.1137 0.3540 2.8639 5. 3.3363 1.9987 0.3777 5.7127 10. 4.1053 3.4691 0.3704 7.9448 20. 4.8946 4.7988 0.3574 10.0508 50. 5.9252 6.8555 0.3429 13.1236 100. 6.6557 8.2050 0.3361 15.1968 200. 7.3194 9.3939 0.3329 17.0461 500. 8.0593 10.4762 0.3331 18.8686 1000. 8.5014 11.0460 0.3382 19.8857 2000. 8.8429 11.4541 0.3463 20.6433 5000. 9.1570 11.7956 0.3610 21.3135 10000. 9.3112 11.9512 0.3756 21.6380 20000. 9.4128 12.0541 0.3926 21.8595 50000. 9.5034 12.1295 0.4191 22.0520 100000. 9.5332 12.1608 0.4418 22.1358