280 AFMAN 24-204(I)/TM 38-250/NAVSUP PUB 505/MCO P4030.19H/ DLAI 4145.3 11 DECEMBER 2001 Symbol of Radionuclide Element and Atomic Number A₁(TBq) (Special form) ^A1^(Ci) (Special form) A₂(TBq) (Other form) ^A2^(Ci) (Other form) Specific activity (TBq/g) Specific activity (Ci/g) U-238 Unlimited Unlimited Unlimited Unlimited 1.2 x 10^-8 3.4 x 10^-7 U (natural) Unlimited Unlimited Unlimited Unlimited U (enriched    5%    or less) Unlimited Unlimited Unlimited Unlimited U (enriched more than 5%) 10 270 1 x 10^-3 2.70 x 10^-2 U (depleted) Unlimited Unlimited Unlimited Unlimited V-48 Vanadium (23) 0.3 8.11 0.3 8.11 6.3 x 10³ 1.7 x 10⁵ V-49 40 1,080 40 1,080 3.0 x 10² 8.1 x 10³ W-178 Tungsten (74) 1 27.0 1 27.0 1.3 x 10^-3 3.4 x 10⁴ W-181 30 811 30 811 2.2 x 10² 6.0 x 10³ W-185 40 1,080 0.9 24.3 3.5 x 10² 9.4 x 10³ W-187 2 54.1 0.5 13.5 2.6 x 10⁴ 7.0 x 10⁵ W-188 Xe-122 Xenon (54) 0.2 5.41 0.2 5.41 4.8 x 10⁴ 1.3 x 10⁶ Xe-123 0.2 5.41 0.2 5.41 4.4 x 10⁵ 1.2 x 10⁷ Xe-127 4 108 4 108 1.0 x 10³ 2.8 x 10⁴ Xe-131m 40 1,080 40 1,080 3.1 x 10³ 8.4 x 10⁴ Xe-133 20 541 20 541 6.9 x 10³ 1.9 x 10⁵ Xe-135 4 108 4 108 9.5 x 10⁴ 2.6 x 10⁶ Y-87 Yttrium (39) 2 54.1 2 54.1 1.7 x 10⁴ 4.5 x 10⁵ Y-88 0.4 10.8 0.4 10.8 5.2 x 10² 1.4 x 10⁴ Y-90 0.2 5.41 0.2 5.41 2.0 x 10⁴ 5.4 x 10⁵ Y-91m 2 54.1 2 54.1 1.5 x 10⁶ 4.2 x 10⁷ Y-91 0.3 8.11 0.3 8.11 9.1 x 10² 2.5 x 10⁴ Y-92 0.2 5.41 0.2 5.41 3.6 x 10⁵ 9.6 x 10⁶ Y-93 0.2 5.41 0.2 5.41 1.2 x 10⁵ 3.3 x 10⁶