Question

1. Classification of radioactive waste a. b._ 2. Explain HLW, TRU and LLW! 3. List of disposal of radioactive waste methods!! 4. There is one nuclear power plant in Mississippi, where? And who own it? 5. In Mississippi which agency inspect Jackson State University's labs. using radioactive materials? 6. The NRC specifies in 10 CFR 20 the maximum allowed dosage for occupational workers. they are.....?

Answer 1

1) Radioactive wastes are classified into

a. Low-level waste (LLW)

b. High-level waste (HLW)

2)HLW- High-Level Waste:

High level waste are highly radioactive wastes with long living radio active materials. This wastes generate significant quantities of heat from radioactive decay process.

TRU- Transuranic waste. Elements possesing atomic number greater than that of uranium are called Transuranic. They have the Half life period of more than 20 years. Transuranic waste are the waste that contains more than 100 nanocuries of alpha emitting Transuranic isotopes per gram.

LLW- Low-level waste

Low-level wastes are the nuclear waste that have become contaminated by the exposure to neutron radiation. Example for this kind of waste includes tools or equipment used in nuclear reactors, protective clothings.

3) Radioactive waste disposal methods

a. Geological disposal

b. Reprocessing

c. Transmutation

d. Space disposal

4) Grand Gulf Nuclear Station is the nuclear power plant in Mississippi. It is located at Claiborne county, near Port Gibson. Entergy Corporation owns it.

5) Radiation Safety Committee ( RSC)

6)

(1) An annual limit, which is the more limiting of—

(i) The total effective dose equivalent being equal to 5 rems (0.05 Sv); or

(ii) The sum of the deep-dose equivalent and the committed dose equivalent to any individual organ or tissue other than the lens of the eye being equal to 50 rems (0.5 Sv)

(2) The annual limits to the lens of the eye, to the skin of the whole body, and to the skin of the extremities, which are:

(i) A lens dose equivalent of 15 rems (0.15 Sv), and

(ii) A shallow-dose equivalent of 50 rem (0.5 Sv) to the skin of the whole body or to the skin of any extremity.