1129 Chapter 1

5. 5. TFBERT is based on an annual U.S population exposure of approximately 1mSv per year.

• True

• False

11. 11. TFRadiologic technologists and radiologists are educated in the safe operation of radiation producing imaging equipment

• True

• False

2. 2. To implement an effective radiation safety program in a facility that provides imaging services, the employer must provide all of the following except:

• A. the necessary resources and appropriate environment in which to execute an ALARA program

• B. X-Ray equipment that can produce only very low kilovoltage and very high milliamperage

• D. Perform periodic exposure audits to determine how radiation in the workplace may be lowered

15. 15. When an imaging procedure is justified in terms of medical necessity, diagnostic efficacy is achieved when optimal-quality images, revealing the presence or absence of disease, are obtained with

• A. Maximal radiation exposure to the patient

• B. Minimal exposure to the patient

• C. Scattered radiation exposure to the patient

• D. Secondary radiation exposure to the patient

9. 9. Cardinal principles of radiation protection include:

10. 1. Time

11. 2. Distance

12. 3. Shielding

• A. 1 and 2 only

• B. 1 and 3 only

• C. 2 and 3 only

• D. 1, 2, and 3

Exercise 5:

X-Ray Tube

Label #1

• Envelope

• Glass enveloped

• Anode

• Filament

Exercise 5:

X-Ray Tube

Label #2

• Glass evelope

• Filament

• Target (anode +)

• xray beam

Exercise 5:

X-Ray Tube

Label #3

• High-speed electron stream

• xray beam

• glass evelope

Exercise 5:

X-Ray Tube

Label #5

• target anode

• high speed electron stream

• xray beam (electromagnetic waves)

Exercise 5:

X-Ray Tube

Label #4

• target (anode +)

• glass envelope

• Filament (cathode - )