Total Effective Dose Equivalent (TEDE)

DOE-HDBK-1188-2006

The lists of threatened species can be found at 50 CFR 17.11 (wildlife), 17.12 (plants), and 227.4

(marine organisms).

Note: Some states also list species as threatened. Thus, in certain cases a state definition would

also be appropriate.

[Derived from 50 CFR 17.3, 50 CFR 424.02(m)]

168. TOTAL EFFECTIVE DOSE EQUIVALENT (TEDE). The sum of the effective dose equivalent (for

external exposures) and the committed effective dose equivalent (for internal exposures). (See

effective dose equivalent and committed effective dose equivalent.) [Derived from 10 CFR 835.2]

169. TRANSURANIC. Refers to any element whose atomic number is higher than that of uranium

(atomic number 92), including neptunium, plutonium, americium, and curium.

Additional optional information:

All transuranic elements are produced artificially and are radioactive.

[Derived from AEA]

170. TRANSURANIC (TRU) WASTE. Radioactive waste that is not classified as high-level radioactive

waste and that contains more than 100 nanocuries (3700 becquerels) per gram of alpha-emitting

transuranic isotopes with half-lives greater than 20 years. [Derived from 40 CFR 191.02, WIPP

LWA]

171. TRITIUM. A radioactive isotope of hydrogen whose nucleus contains one proton and two neutrons.

The symbols for tritium are T and 3H; the latter symbol is more frequently encountered.

If appropriate to the context add:

Used in thermonuclear weapons.

172. TYPE A PACKAGING. A regulatory category of packaging for transportation of radioactive

materials. Type A packaging must be designed and demonstrated to retain its containment and

shielding integrity under normal conditions of transport. Examples of Type A packaging include 0.21-

m3 (55-gallon) drums and standard waste boxes. Type A packaging is used to transport materials

with low radioactivity levels, and usually does not require special handling, packaging, or

transportation equipment. (See Type B packaging.) [Derived from 10 CFR 71, 49 CFR 173

Subpart I]

173. TYPE B PACKAGING. A regulatory category of packaging for transportation of radioactive

material. The U.S. Department of Transportation and Nuclear Regulatory Commission require Type

B packaging for shipping highly radioactive material. Type B packages must be designed and

demonstrated to retain their containment and shielding integrity under severe accident conditions, as

A-33