Muon radiative energy loss (in 1.0E06 cm^2/g) in Dubnium with Z = 105, A = [268.125(4)] (f12.0,4f12.4) E (GeV) b_brem b_pair b_nucl b_total 2. 2.4569 0.1163 0.3548 2.9280 5. 3.4196 2.0445 0.3787 5.8427 10. 4.2067 3.5487 0.3714 8.1268 20. 5.0146 4.9088 0.3583 10.2817 50. 6.0692 7.0127 0.3437 13.4256 100. 6.8166 8.3932 0.3369 15.5466 200. 7.4955 9.6093 0.3336 17.4385 500. 8.2525 10.7165 0.3339 19.3028 1000. 8.7048 11.2994 0.3390 20.3432 2000. 9.0541 11.7176 0.3471 21.1187 5000. 9.3754 12.0661 0.3618 21.8033 10000. 9.5332 12.2261 0.3764 22.1357 20000. 9.6371 12.3306 0.3934 22.3611 50000. 9.7298 12.4075 0.4200 22.5573 100000. 9.7602 12.4397 0.4428 22.6427