Question

1.   All of the following are true of Alpha radiations except:

1. They are often termed He nuclei, or He⁺⁺
2. They have extremely low Linear Energy Transfer, on the order of 1/1800 of that of electrons
3. They are extremely heavy relative to other nuclear radiations such as Betas
4. They are historically significant serious internal dose hazards (e.g., respiratory exposures)

2.   The unit of exposure relating the ability of X-radiation to produce ionization in air:

1. rad
2. rem
3. Roentgen
4. LET

3.   If the maximum energy associated with Beta decay from P-32 is 1.71 MeV, then the industrial hygienist would expect:

1. This to be considered a "High Beta" source
2. No serious hazards from directly ionizing radiation
3. The average energy from P-32 decay to approximate 0.60 MeV
4. Both A and C

4.  Which of the following are true of Gamma and X-ray radiation:

1. They are essentially identical radiation if of the same energy
2. X-rays emanate from nucleus interactions, Gammas from electron cloud interactions
3. X-rays emanate from electron cloud interactions, Gammas from nucleus  interactions
4. Both A and C

5.  Grays are to rads, as Sieverts are to:

1. Roentgens
2. MeV/gram tissue
3. Quality factors
4. Rems

Answer 1