Muon radiative energy loss (in 1.0E06 cm^2/g) in selenium (Se) with Z = 34, A = 78.971(8) (f12.0,4f12.4) E (GeV) b_brem b_pair b_nucl b_total 2. 0.9706 0.4448 0.3982 1.8135 5. 1.3309 1.1509 0.4251 2.9069 10. 1.6237 1.7012 0.4059 3.7308 20. 1.9243 2.2511 0.3944 4.5699 50. 2.3208 3.0614 0.3826 5.7649 100. 2.6055 3.6085 0.3741 6.5881 200. 2.8687 4.1031 0.3701 7.3418 500. 3.1695 4.5671 0.3700 8.1066 1000. 3.3544 4.8178 0.3759 8.5481 2000. 3.5012 5.0010 0.3853 8.8874 5000. 3.6403 5.1556 0.4025 9.1984 10000. 3.7107 5.2279 0.4197 9.3583 20000. 3.7581 5.2749 0.4396 9.4727 50000. 3.7978 5.3107 0.4708 9.5792 100000. 3.8159 5.3255 0.4974 9.6388